Generated by All in One SEO v4.9.10, this is an llms.txt file, used by LLMs to index the site. # Design and Engineering It's our own way.... ## Sitemaps - [XML Sitemap](https://designandengg.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Posts - [Implementing HAZOP Studies on Offshore Platforms](https://designandengg.com/implementing-hazop-studies-on-offshore-platforms/) - Case Studies and Real-World Applications: Challenges and Solutions in Implementing HAZOP Studies on Offshore Platforms Hazard and Operability (HAZOP) studies are a cornerstone of process safety management, particularly on offshore oil and gas platforms, where risks are elevated due to harsh environments, complex operations, and isolation from immediate emergency services. Implementing effective HAZOP studies in - [Exploring Diverse Career Opportunities After 12th Class](https://designandengg.com/exploring-diverse-career-opportunities-after-12th-class/) - After completing your 12th class, a world of possibilities awaits, filled with diverse career opportunities or paths that cater to a wide range of interests and aspirations. Whether you are passionate about science, arts, commerce, or vocational skills, there are numerous avenues to explore and carve out a fulfilling career for yourself. For those inclined - [Enhancing Concrete with Silica Fume](https://designandengg.com/enhancing-concrete-with-silica-fume/) - Enhancing Concrete with Silica Fume Introduction Silica fume, also known as micro silica, is an incredibly fine material resulting from silicon and ferrosilicon alloy production. When added to concrete, this reactive pozzolanic substance greatly improves various properties. In this post, we'll explore the benefits, applications, and technical aspects of silica fume concrete. What is Silica - [PDMS and E3D Comparison](https://designandengg.com/pdms-and-e3d-comparison/) - PDMS and E3D Comparison Both PDMS (Plant Design Management System) and E3D (Everything 3D) are leading 3D design software solutions developed by AVEVA, tailored for different aspects of engineering and construction projects. Here's a detailed PDMS and E3D comparison of their features, capabilities, and use cases: PDMS (Plant Design Management System) Overview: PDMS is a - [E3D Piping Design](https://designandengg.com/e3d-piping-design/) - Comprehensive Guide to E3D Piping Design Introduction to E3D Piping Design E3D (Everything 3D) Piping Design is a state-of-the-art 3D design software developed by AVEVA, tailored for the complex needs of the oil and gas, power, and chemical industries. It integrates all engineering disciplines into a single 3D model, enabling efficient collaboration and streamlined project - [Standard Pipe Fittings](https://designandengg.com/standard-pipe-fittings/) - Standard Pipe Fittings The tree diagram of standard pipe fittings, categorized by end connections, types, and purposes, is displayed below. Dimensional Standards for Pipe Fittings ASME B 16.1 -Cast Iron Pipe Flanges and Flanged Fittings ASME B 16.3 -Malleable-Iron Threaded Fittings ASME B 16.4 -Grey Iron Threaded fittings ASME B 16.5 -Pipe Flanges and Flanged - [Pipes](https://designandengg.com/pipes/) - Pipes In American standard, the pipes are covered under a) ASME B 36.10 - Welded and Seamless Wrought Steel Pipe b) ASME B 36.19 - Stainless Steel Pipe Stainless steel pipes are available in schedule 5S, 10S, 40S and 80S whereas carbon steel pipes are available in schedule 10, 20, 30, 40, 60, 80, 100, - [FIV and AIV](https://designandengg.com/fiv-and-aiv/) - FIV and AIV (Flow-Induced Vibration and Acoustic-Induced Vibration) are critical considerations in the design and maintenance of piping systems. These phenomena, caused by fluid dynamics and acoustic energy, can lead to significant structural issues if not properly addressed. Understanding FIV and AIV, along with their respective causes and mitigation strategies, is essential for ensuring the safety, - [Retrofitting Aging Pipelines](https://designandengg.com/retrofitting-aging-pipelines/) - Case Studies and Real-World Applications: Challenges and Solutions in Retrofitting Aging Pipelines As infrastructure ages, pipeline systems—whether for oil, gas, water, or chemicals—require careful assessment, repair, or replacement. Retrofitting aging pipelines presents unique engineering, operational, and environmental challenges. However, with advanced technologies and strategic planning, operators around the world have successfully extended the service life - [Advanced Computational Fluid Dynamics (CFD) Applications in Pipeline Design](https://designandengg.com/advanced-computational-fluid-dynamics-cfd-applications-in-pipeline-design/) - Advanced Computational Fluid Dynamics (CFD) Applications in Pipeline Design In modern engineering, pipeline design has evolved far beyond simple calculations and manual sketches. Today, engineers harness the power of Computational Fluid Dynamics (CFD) to analyze and optimize the behavior of fluids within pipelines under real-world conditions. With rising demands for efficiency, safety, and regulatory compliance, - [Regulatory Compliance: Navigating International Engineering Standards and Regulations](https://designandengg.com/regulatory-compliance-navigating-international-engineering-standards-and-regulations/) - Regulatory Compliance: Navigating International Engineering Standards and Regulations In the global engineering landscape, regulatory compliance is not just a legal requirement—it's a foundational element of quality, safety, and project success. Whether you're designing pressure vessels, building offshore platforms, or laying pipeline networks across borders, adhering to international engineering standards ensures that your work is technically - [Sustainability in Engineering: Exploring Eco-Friendly Materials and Energy-Efficient Design Practices](https://designandengg.com/sustainability-in-engineering-exploring-eco-friendly-materials-and-energy-efficient-design-practices/) - Sustainability in Engineering: Exploring Eco-Friendly Materials and Energy-Efficient Design Practices In a world increasingly focused on environmental responsibility, sustainability in engineering has evolved from a buzzword into a critical design imperative. Engineers play a key role in shaping how infrastructure, products, and systems interact with the environment—often determining whether they contribute to environmental harm or - [Hot Tapping](https://designandengg.com/hot-tapping/) - Hot Tapping: A Comprehensive Guide Introduction Hot tapping, also known as pressure tapping or live tapping, is a widely used industrial process that allows for the creation of connections to existing pipelines, tanks, or vessels without requiring a shutdown. This method is essential for performing maintenance, modifications, or repairs while keeping the system operational, thus - [Augmented Reality (AR)](https://designandengg.com/augmented-reality-ar/) - Augmented Reality (AR) in Engineering Design: A Deep Dive Introduction Augmented Reality (AR) is transforming the engineering design landscape by merging digital data with the physical world. This technology enhances the way engineers visualize, interact with, and manipulate designs, leading to improved efficiencies, accuracy, and innovative solutions. In this detailed exploration, we will delve into - [The Internet of Things (IoT)](https://designandengg.com/the-internet-of-things-iot/) - The Internet of Things (IoT): Revolutionizing Connectivity and Functionality Introduction The Internet of Things (IoT) is transforming the way we interact with technology, blending the physical and digital worlds to create an interconnected ecosystem. This detailed blog will explore the fundamental aspects of IoT, its applications across various sectors, benefits, challenges, and future trends. What - [Gaskets and Bolts](https://designandengg.com/gaskets-and-bolts/) - Gaskets Proper selection of gaskets depends upon following factors. Compatibility of the gasket material with the fluid. Ability to withstand the pressure-temperature of the system. Based on the type of construction, gaskets are classified as: Full Face Inside bolt circle Spiral wound metallic Ring type Metal jacketed For high temperature and high pressure applications, spiral - [Aerospace Engineering](https://designandengg.com/aerospace-engineering/) - What is Aerospace Engineering? Aerospace engineering is a field of engineering focused on the development of aircraft and spacecraft. It combines a wide range of disciplines, including aerodynamics, propulsion systems, avionics, materials science, structural analysis, and manufacturing. Branches of Aerospace Engineering Aeronautical Engineering: Concerned with the design, development, testing, and production of aircraft and related - [Integrating Biomimicry into Pipeline Design](https://designandengg.com/harnessing-nature-integrating-biomimicry-into-pipeline-design/) - Harnessing Nature: Integrating Biomimicry into Pipeline Design Introduction: Pipelines, the unsung heroes of modern infrastructure, are undergoing a revolution. While their primary function remains the same—transporting fluids from one point to another—their design is evolving, drawing inspiration from an unexpected source: nature. This is Integrating Biomimicry. Biomimicry in Pipeline Design: Nature has perfected designs through - [Top 10 Engineering Software Tools](https://designandengg.com/top-10-engineering-software-tools-in-2024/) - Engineering continues to evolve with advancements in software tools that enhance productivity, accuracy, and innovation. Whether you’re in civil, mechanical, electrical, or any other branch of engineering, having the right software can significantly impact your work. Here’s a look at the top 10 engineering software tools that are shaping the industry. 1. AutoCAD Description: AutoCAD - [Revolutionizing Healthcare: The Impact of Technology in the Medical Field](https://designandengg.com/revolutionizing-healthcare-the-impact-of-technology-in-the-medical-field/) - Revolutionizing Healthcare: The Impact of Technology in the Medical Field The medical field has always been at the forefront of innovation, and advancements in technology have transformed how healthcare is delivered. From diagnostics to treatment and patient management, technology is reshaping the landscape of medicine. Here’s a look at some of the most impactful technological - [Exploring the Fascinating World of Robotics](https://designandengg.com/exploring-the-fascinating-world-of-robotics/) - Exploring the Fascinating World of Robotics Introduction Robotics is a rapidly evolving field that combines engineering, computer science, and artificial intelligence to create machines capable of performing tasks autonomously or semi-autonomously. As technology advances, robots are becoming integral to various industries, from manufacturing to healthcare. This blog delves into the different facets of robotics, highlighting - [The Rise of Electric Cars: Driving Toward a Sustainable Future](https://designandengg.com/the-rise-of-electric-cars-driving-toward-a-sustainable-future/) - The Rise of Electric Cars: Driving Toward a Sustainable Future In recent years, electric cars (EVs) have transitioned from niche products to mainstream vehicles, reshaping the automotive landscape. Let’s explore the evolution, benefits, and future of electric vehicles. A Brief History of Electric Cars The concept of electric cars dates back to the 19th century. - [A Guide to AIE CET and NEET for Aspiring Students](https://designandengg.com/a-guide-to-aie-cet-and-neet-for-aspiring-students/) - For many students in India, the journey towards a career in medicine or engineering begins with clearing competitive entrance exams such as AIE CET and NEET. These exams serve as gateways to some of the most prestigious institutions in the country, offering aspiring doctors and engineers the opportunity to pursue their academic dreams and carve - [Transforming Engineering Design with Artificial Intelligence](https://designandengg.com/transforming-engineering-design-with-artificial-intelligence/) - Artificial Intelligence (AI) is revolutionizing the field of engineering design, offering innovative solutions that streamline processes, enhance productivity, and drive efficiency. In recent years, AI technologies have been increasingly integrated into various aspects of engineering design, shaping the way we approach complex projects and pushing the boundaries of what is possible. One of the key - [Understanding WPS and PQR in Welding: Key Components for Quality Assurance](https://designandengg.com/understanding-wps-and-pqr-in-welding-key-components-for-quality-assurance/) - Understanding WPS and PQR in Welding: Key Components for Quality Assurance When it comes to welding, maintaining quality and consistency is crucial. Two important documents that play a vital role in this process are the Welding Procedure Specification (WPS) and the Procedure Qualification Record (PQR). Let’s break down what they are, their purposes, and why - [The Future of Modern Design Technology: A Glimpse Ahead](https://designandengg.com/the-future-of-modern-design-technology-a-glimpse-ahead/) - The Future of Modern Design Technology: A Glimpse Ahead As we step into an era defined by rapid technological advancements, the world of design is undergoing a transformative revolution. Modern design technology is not just about aesthetics; it’s about functionality, sustainability, and enhancing user experiences. Let’s explore some exciting innovations that are shaping the future - [Escape and Evacuation](https://designandengg.com/escape-and-evacuation/) - Emergency escape and evacuation is the urgent immediate egress or escape of people away from an area that contains an imminent threat, an ongoing threat or a hazard to lives or property. Emergency evacuation plans are developed to ensure the safest and most efficient evacuation time of all expected residents of a plant, structure, city, - [HAZOP, SAFOP & SIL](https://designandengg.com/hazop-safop-sil/) - This post gives some brief information about HAZOP (Hazard and operability study), SAFOP (Electrical Safety and Operability Study) & SIL (Safety Integrity Level Assessment). HAZOP (Hazard and operability study) A hazard and operability study (HAZOP) is an organized and systematic examination of a complex planned or existing process or operation in order to identify and - [Technical Safety Studies](https://designandengg.com/technical-safety-studies/) - This post gives some brief details about technical safety studies used in process industries. Technical Safety and Process or functional Safety will describe the safety requirements related to the design and operation of hazardous processes. Technical Safety comprises a set of discrete elements that are applied in the field of risk analysis and management to - [HAZID (Hazard analysis)](https://designandengg.com/hazid-hazard-analysis/) - For any project in any company, HAZID is carried out first to access risk in a process. Identification of different types of hazards is the main objective of HAZID. A hazard is a possible condition and exists or not (probability is 1 or 0). It may in single/multiple existence or in combination with other hazards - [Spring Supports](https://designandengg.com/spring-supports/) - This post gives some brief details about spring supports used in pipe supports. What is a purpose of Spring Supports? In general Spring supports are installed when vertical movement of the pipe causes large stresses in the line and/or high loadings developed on equipment nozzles due to: Lifting of the pipe from the support Restraint - [Difference between Tee and a Barred Tee](https://designandengg.com/difference-between-tee-and-a-barred-tee/) - Standard Tee or a Barred Tee are fittings used in piping and pipeline engineering design. Piping standard tees are coming in equal tee and reducing tee, however in piggable pipelines a Bar or Barred Tees are used at the Tee branch connections. This is also called sometimes as Pigged Tee. Why is Barred Tee used - [Management of Hazards](https://designandengg.com/management-of-hazards/) - What is Management of Hazards? This post will give some brief details about Hazards management in process or functional safety. Reducing risks to As Low As Reasonably Practicable (ALARP) means reducing them to a level at which the cost and effort (time and trouble) of further risk reduction are grossly disproportionate to the risk reduction - [Hazardous Area Classification](https://designandengg.com/hazardous-area-classification/) - The purpose of hazardous area classification is to ensure that ignition sources are generally not available to ignite potential flammable atmospheres. Refer below image for Hazardous Area Classification Drawing Hazardous areas extent, definition and identification, which is based on the Area Classification Code for Installations Handling Flammable Fluids, Institute of Petroleum Model Code of Safe - [Butterfly Valve Design Features](https://designandengg.com/butterfly-valve-design-features/) - This post is initiated to give some basic information regarding butterfly valve design features, it uses, standards, types, advantages, disadvantages etc. A butterfly valve is a rotary valve that uses a disc as the closure member. The disc shaped closure member is rotated through 900 or there about to open or close the passage. The disc closes against a ring seal to close off the flow. The other main parts are the valve body, the stem/ shaft and the valve actuator. - [Common Welding Defects](https://designandengg.com/common-welding-defects/) - What is welding defects? Before going to welding defects, we should understand what is welding? Welding is a process of fabrication. This joins different materials, mainly metals or non-metals like thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion. However such as brazing and soldering, are used - [Corrosion Problems Associated with Stainless Steel](https://designandengg.com/corrosion-problems-associated-with-stainless-steel/) - Commonly used stainless steel material is having corrosion problems like pitting, SCC, erosion, galvanic corrosion etc. Brief description of all these corrosion problems associated with stainless steel is tabulated in this blog. The corrosion experienced in 300 series stainless steel is described in a variety of technical terms. - [Duckbill Check Valve](https://designandengg.com/duckbill-check-valve/) - What is Duckbill Check Valve? Why called as Duckbill? Its design features, principle of operation, styles and materials, applications, advantages and disadvantages, all this brief information is covered in this blog post. - [Clad Piping Basics](https://designandengg.com/clad-piping-basics/) - What is Clad Piping? It;s Applications, Advantages, Limitations, Manufacturing methods, Thermo-hydraulic fitting process, Strength & corrosion resistance, Design Issues of CRA, Buckling pressure, Life Cycle cost, CRA Fittings, Flange, CRA Welding. - [Oil and Gas Facilities](https://designandengg.com/oil-and-gas/) - OIL AND GAS FACILITIES Oil and gas facilities are integral to the energy sector, facilitating the extraction, processing, and transportation of hydrocarbons. They are primarily divided into three sectors: upstream, midstream, and downstream. Upstream: This sector is dedicated to the exploration and production of oil and natural gas. Essential facilities include drilling rigs, offshore platforms, - [Topographical Survey](https://designandengg.com/topographical-survey/) - What is topographical survey or topographical map? Any industrial plants or building and even when we are planning to build new house, we should know about the land details. Question is "why it is required?" Why not we can directly build the house or plant on open area. But unfortunately this is not the correct - [Mechanical Engineering - Static](https://designandengg.com/mechanical-engineering-static/) - Mechanical Engineering is the main stream in which Mechanical Engineering - Static and Mechanical Engineering - Rotary subclassified. In this post we will see more about Mechanical Engineering Static. - [NPSH (Net Positive Suction Head)](https://designandengg.com/npsh-net-positive-suction-head/) - What is NPSH? NPSH is a static head, which will be calculated from single datum or reference elevation (Normally datum elevation is considered as pump suction elevation as reference elevation) minus vapor pressure head of liquid. It is expressed in metres (feet) of head of the pumped liquid. - [Oil Production - Oil and Gas Facilities](https://designandengg.com/oil-production-oil-and-gas-facilities/) - This post gives some basic information for oil production facilities in Oil and Gas industry. When an oil-drilling rig strikes oil, the well is said to have "come in". The drilling rig is removed, and the well is fitted with special equipment to allow the oil to be collected and processed in a controlled way. This collection process is called production. There are three main components of oil production equipment: the wellhead, the pipeline, and the gathering Centre. - [Material Basics - Monel](https://designandengg.com/material-basics-monel/) - This blog provides, basic information about Monel 400 (UNS N04400) and MONEL alloy K-500 (UNS N05500) material basics like, its properties, applications and much more. Monel is a high tensile strength nickel-copper alloy that was discovered in 1905. It was found to be highly resistant to atmospheric corrosion, to seawater/ salt water, various acid and alkaline solutions and steam at high temperatures as well as to salt and caustic solutions. - [Intrinsically Safe Systems](https://designandengg.com/introduction-to-intrinsically-safe-systems/) - What is intrinsically safe systems? Why it is used? What is design criteria? All these basic information about intrinsically safe systems is provided in this post. - [Material Basics - Stainless Steel](https://designandengg.com/material-basics-stainless-steel/) - Material Basics for commonly used material stainless steel, is covered in this blog. Which provides information about stainless steel material all commonly used grades, its properties, welding properties, including its subcategories like Austenitic, Martensitic, Ferritic, Duplex, Precipitation Hardening and super alloys. - [Zeron 100 - Alternative Material for Severe Conditions](https://designandengg.com/zeron-100-alternative-material-for-severe-conditions/) - This web blog provides you a transient data of Zeron 100® Alternative Material for Severe conditions, its mechanical, physical, chemical properties, applications, standards, design stresses, thermal conductivity, impact strength etc. - [Hydraulic Surge or Water Hammer](https://designandengg.com/basics-of-hydraulic-surge-or-water-hammer/) - What is Hydraulic Surge or water hammer? Any change from steady state conditions creates a temporary variation in pressure or flow called hydraulic/pressure transients. - [Functioning of Different Types of Steam Traps](https://designandengg.com/functioning-of-different-types-of-steam-traps/) - What are the different types of steam traps? Steam traps are divided into three main categories. They are; 1. Mechanical Steam Trap 2. Thermostatic Steam Trap 3. Thermodynamic (Kinetic) Steam Trap Some steam trap professionals tend describe steam trap types in terms of their properties such as "mechanical density," "thermostatic/temperature" or "kinetic energy." To the uninitiated, it is best understood to describe traps in terms of their generic operation modes, such as "continuous flow" and "intermittent flow". - [Check Valves Design Features](https://designandengg.com/check-valve-design-features/) - This post is initiated to give some basic information regarding Check valve design features, it uses, standards, types, advantages, disadvantages etc. Check Valves Another type of valve commonly used in conjunction with other valves is called a check valve. Check valves are designed to restrict the flow to one direction. If the flow reverses direction, the check valve closes. - [Plug Valve Design Features](https://designandengg.com/plug-valve-design-features/) - This post is initiated to give some basic information regarding plug valve design features, it uses, standards, types, advantages, disadvantages etc. Plug values are possibly the oldest type of valve in use. Discoveries in ancient ruins indicate that a form of plug valve was used in early Roman water systems. The concept is simple: A rotary cylindrical or tapered plug with an opening through it is inserted into an open body to block or allow the flow of a fluid. - [Building Insulation for Civil Engineering](https://designandengg.com/building-insulation-for-civil-engineering/) - This post gives some of the basics of building insulation for civil engineering. This contains, what is building insulation, uses, types, materials for building insulation including some international standard requirements. Now a days, energy efficiency enhancement in any buildings is very essential part. There are many ways for this which Builders, Architects and Service Consultants are constantly looking. - [Gate Valve Design Features](https://designandengg.com/gate-valve-design-features/) - This post is initiated to give some basic information regarding gate valve design features, it uses, standards, types, advantages, disadvantages etc. What is Gate Valve? Gate valve name itself implies as, gate called vertical disc, flat face that slides down through the valve is used to stop fluid flow. It is used primarily for on/off functions, and not used for throttling purpose, since accurate control is not possible. The pressure loss in gate valve is very less. - [Basics of flare System in any Operating Plant](https://designandengg.com/basics-of-flare-system-in-any-operating-plant/) - This blog gives you basic information about the requirement of flare systems, its components, limitations, hazards and maintenance requirements of any operational plants flare systems. Topics described for Flare Systems: Define the need for plant flares in any plants. Describe the different components of a typical flare system. Discuss the limitations and hazards associated with operating flare systems.Discuss maintenance requirements of flare systems. - [PVC, LDPE and HDPE Nonmetallic Piping](https://designandengg.com/pvc-ldpe-and-hdpe-nonmetallic-piping/) - This blog gives you basic information about use of PVC, LDPE and HDPE Nonmetallic Piping, its design, fabrication, assembly, erection, inspection and testing. Design and use of PVC, LDPE and HDPE Nonmetallic Piping is limited to 10 kg/cm2 pressure and 80oC temperature. Usually the design of nonmetallic piping conform to the requirements of Petroleum Refinery Piping code ANSI B 31.3. When another code, rule or regulation is specified i.e. clients standards, specifications, the design to conform such specified requirements and to such portions of this other standards which do not conflict. - [Piping Drafting Basics](https://designandengg.com/piping-drafting-basics/) - This blog provides information about piping symbols, Methods of Representing Piping Systems, Procedure for Drafting, Piping Drawings, Plot Plans, Overall Plot Plan, Area Plot Plan, Unit Plot Plan, Presentation of Plot Plan Drawings, Piping Planning Drawings, Key plan, Presentation of Key Plan Drawings, Pipe Support drawings, Isometrics, Presentation of isometric drawings, etc. - [Introduction to Plot Plan](https://designandengg.com/introduction-to-plot-plan/) - What is plot plan? How it is generated? Different types of plot plans. Plot plan requirements. Basic key points of plot plan preparation. Various inputs required for generating any plot plan. All these brief information is tabulated in this blog post for beginners in piping industry. - [Working principle of Electromagnetic Flow meters](https://designandengg.com/working-principle-of-electromagnetic-flow-meters/) - This post gives more about electromagnetic flow meters used in instrumentation or control and automation industries, and its operating principle based on Faraday's Law details. - [What is the Coriolis Principle?](https://designandengg.com/what-is-the-coriolis-principle/) - What is the Coriolis Principle? To some of us the Coriolis Principle is an exact science, but to most of us it is still a black art. Well, imagine a fluid flowing (at velocity V) in a rotating elastic tube as shown below. The fluid will deflect the tube. - [Dual Plate Check Valve](https://designandengg.com/dual-plate-check-valve/) - What is dual plate check valve? What are its design features? Its design standards, advantages, disadvantages all this brief information is tabulated in this blog post. - [Why not bury flare pipe header?](https://designandengg.com/why-not-bury-flare-pipe-header/) - Flare and venting facilities is commonly provided in Oil and gas plant for proper disposal of hydrocarbon gas during plant black start-up, normal start up, operation, emergency relief and plant depressurization. A proper design would have elevated flare header sitting on pipe support and slopping down to flare / vent knock out drum (KOD). No low pocket is expected along the header. - [Lifting Equipment’s](https://designandengg.com/lifting-equipments/) - Different Types of lifting equipment, Selection of lifting equipment’s, its Speed, Chain pulley block, HOT Crane, EOT Crane, Single or double girder all these basic information is covered in this web log. - [Reinforcement Calculation for Welded Branch Connections](https://designandengg.com/reinforcement-calculation-for-welded-branch-connections/) - Any pipe having an opening, for branch connection will be weaken, if pipe wall thickness will not sustain the pressure. In this case, pipe reinforcement is necessary to provide. The amount of reinforcement required to sustain the pressure, shall be determined in accordance with reinforcement Calculation for Welded Branch Connections as per ASME B 31.3, which is covered comprehensively in this blog post. - [Pipe Wall Thickness Calculation as per Code ASME B31.3](https://designandengg.com/pipe-wall-thickness-calculation-as-per-code-asme-b31-3/) - Pipe wall thickness calculation is very important in any material specification, and crucial to identify required schedule of any pipe, fittings, and flanges as per process requirements. Same has been already derived in ASME B 31.3. This blog post simplifies the calculation stepwise, to comprehend and determine pipe wall thickness. - [Tanks Bund Wall or Dyke Wall Calculation](https://designandengg.com/tanks-bund-wall-or-dyke-wall-calculation/) - What is bund wall or dyke wall ? Bund wall or dyke wall is a Bunding constructed alongside of storage tanks, where possibly polluting substances are stored and handled. - [Surge Relief Valves](https://designandengg.com/surge-relief-valves/) - What is Surge Relief Valves? This post provides basic information for Surge Relief valves along with surge pressure on skid, with its design details used in engineering design. - [Specifying Torque Values for Fasteners](https://designandengg.com/specifying-torque-values-for-fasteners/) - Why Torque values are required to specify for fasteners? This post gives you a basic information about requirements of specifying Torque Values for Fasteners and its calculation's. - [Double Block and Bleed Valves](https://designandengg.com/double-block-and-bleed-valves/) - What is Double Block and Bleed Valves? This post gives you a brief information regarding double block and bleed valves, monoflange valves, single block and bleed valves. - [Cryogenic Valves](https://designandengg.com/cryogenic-valves/) - Cryogenic Valves: What is Cryogenics? & why of Cryogenics. Expectation from Cryogenic. Cryogenic Valves Engineering. Test Process & Setup Requirements. - [Separators](https://designandengg.com/separators/) - Separator is basically coming from category of Mechanical Static Equipment. However it is one of the pressure vessel type, based on its purpose. As its name implies the purpose as ‘Separation’. - [Dynamic Analysis of Piping System](https://designandengg.com/dynamic-analysis-of-piping-system/) - What is Dynamic analysis of piping system? This blog post gives you brief information of dynamic analysis including its basic characteristics, types of force time profiles, types of dynamic analysis. - [What is Process Safety](https://designandengg.com/process_safety/) - Process safety and functional safety or technical safety is a key element for any engineering design or any projects with planning as well as during execution of design at field locations. - [Basics of Site Construction](https://designandengg.com/site-construction/) - Site Construction is the process of constructing a building, infrastructure or any projects. While construction typically takes place on location for a known client, which is called as site or field of construction.Construction as an industry comprises six to nine percent of the gross domestic product of developed countries. - [Ball Valve Design Features](https://designandengg.com/ball-valve-design-features/) - The purpose of this post is to understand the various design features of ball valve. This includes Applicable codes, Reduced / full bore design, Soft / Metal seated design, Side / Top Entry / Welded body design, Valve ends / Valve operators, Floating / trunnion mounted design, SPE / DPE / Body cavity relief features, DBB / DIB / Extended bonnet / weld overlay, Anti static / Fire safe design / Sealant Injection, Seat insert materials / O-rings / Lip seals, Valve Lifting & supporting. - [Internal Coatings - Uses, Advantages & Limitations](https://designandengg.com/internal-coatings-uses-advantages-limitations/) - The initiative of this post is to provide a brief information about different types of pipe internal coatings, linings, their uses, advantages and limitations. - [Flexibility or Stress Analysis](https://designandengg.com/flexibility-or-stress-analysis/) - Flexibility or Stress Analysis is an engineering that uses many methods to determine the stresses and strains in materials and structures subjected to forces. In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighboring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material. - [Mechanical Engineering - Rotary](https://designandengg.com/mechanical-engineering-rotary/) - Here in this post we will see more about Mechanical Engineering - Rotary stream with its relevant equipment's with its design engineering principles and brief details. Mechanical Engineering is the main stream in which, Mechanical Engineering - Static and Mechanical Engineering - Rotary is subcategorised. - [Instrumentation](https://designandengg.com/instrumentation/) - What is Instrumentation or Control and Automation? Is the art of measuring the value of some plant parameter pressure, flow, level or temperature and supplying a signal that is proportional to the measured parameter or in a simple way it is called as art & Science of measurement and control. - [Design and Engineering Welcomes You!!](https://designandengg.com/welcome-to-design-and-engineering/) - Dear Guest ! Thanks for visiting us! We welcomes you in our world of Design and Engineering ! This is dedicated to all our enthusiastic and professional engineers to share knowledge and experience with newcomers! Knowledge sharing will ultimately increase our own knowledge! It's is filled with information, knowledge for technology, piping engineering, electrical engineering, civil - [Electrical Engineering](https://designandengg.com/electrical-engineering/) - What is Electrical Engineering? From the school days we may aware about the inventions like light bulb by Thomas Edison and many more pioneers turned their ideas about electricity into physical devices like electric telegraph, the telephone, and use of electrical power with distribution was the key factors, in olden days to initiate electrical engineering and recognized as an occupation. - [Comparison of Different Gasket Materials](https://designandengg.com/comparison-of-different-gasket-materials/) - This weblog initiated to provide brief information about different types of gasket materials with comparisons, including its trade names, advantages, disadvantages, properties, applications etc. This covers Natural Rubber, Butyl, Buna N, Nitrile, NBR, Neoprene, Silicone Rubber, Fluorosilicone, Hypalon, Fluoro Elastomers, SBR. GRS, Polysulfide, EPR, EPT, EPDM, Urethane, Polyurethane. - [Refinery Process](https://designandengg.com/refinery-process/) - This weblog gives you brief information regarding Various Refinery Process with its detail description, including its process sequence and detail in P&ID's. For any process or chemical Engineers, this basic information is required for his design and understanding the process layout. - [Material Engineering](https://designandengg.com/material-engineering/) - Piping Material Specifications This topic provides basic information and guidelines for understanding, different Piping Material Specifications used in Piping Material Engineering. - [Welding Precautions of Metals](https://designandengg.com/welding-precautions-for-metals/) - Welding of any Materials need some procedural requirements for cleaning, preheating, post heating PWHT, purging etc. However these requirements are specified in various design standards, of welding requirements. - [Process Engineering](https://designandengg.com/process-engineering/) - What is process? In general term process is a series of actions or steps taken in order to achieve a particular end or perform a series of mechanical or chemical operations on something in order to change or preserve it. Process is defined in various different forms according to the industry. - [Pipe Rack and Pipe Track](https://designandengg.com/pipe-rack-pipe-track/) - This weblog provides you brief information about pipe rack and pipe track design, basic differences, width calculation for pipe racks, civil loading for pipe rack, different types, shapes of pipe racks and including basic key points for design and review of any pipe rack or pipe track design. - [Basic Materials used for Piping](https://designandengg.com/basic-materials/) - Basic Materials used for Piping. There are numerous basic materials used for piping, though regularly used materials are listed below with their grades and service applications. Here we are listing some of the basic materials, broadly used in piping industries. - [Introduction to Pipe Supports](https://designandengg.com/introduction-to-pipe-supports/) - All pipes have to be supported adequately. Pipe supports is a general term that actually is split into two families. This weblog provides brief information about primary pipe supports as well as secondary pipe supports. What is Primary pipe support systems? The primary pipe supports systems are those supports that are a part of the infrastructure and fall under the prime responsibility of the structural department. What is Secondary pipe support systems? The secondary pipe support systems are more a part of the piping systems and as such fall under the prime responsibility of the piping department. Consists of a broad family of devices and actually include more than just supports. - [Civil Engineering](https://designandengg.com/civil-structural/) - What is Civil Engineering? This post provides basic information about civil and structural engineering deliverable's and documents prepared for any operating plants or industries. - [Surge Arrestors](https://designandengg.com/surge-arrestors/) - Surge arrestors are designed to control rapid velocity changes which may cause potentially dangerous pressure excursions. - [Introduction to Piping General Arrangement Drawings](https://designandengg.com/introduction-to-piping-general-arrangement-drawings/) - Piping general arrangement drawings describe the arrangement of piping and may be drawn as plans and elevations. The plan and section method is the conventional or classical drawing procedure of orthogonal projections. Plan view at different elevations are prepared. Sections are taken through the piping and elevations are drawn if so required by the client. The drawing shall contain all the piping and equipment in the area for which it is prepared. - [Non Metallic Materials Used in the Valve Industry](https://designandengg.com/non-metallic-materials-used-in-the-valve-industry/) - There are various Non Metallic Materials used in Valve industry. However some of the commonly used Non Metallic Materials used in the valve industry are described in this blog post with its use, characteristics, properties, etc. Even though metals will continue to be used throughout the valve industry for their own unique characteristics of cost and performance, it has been the many developments in plastic and other non-metals that have greatly expanded the applications of valves. The following is a brief review of some of the non-metallic materials being used in today's valve designs. - [Steam Trap Inspection and Testing Methods](https://designandengg.com/steam-trap-inspection-and-testing-methods/) - Steam trap is main element on all condensate piping as well as in steam plants. Inspection and testing of steam trap is vital role for normal operation of plant. This post provide some of the basic information about steam strap inspection and testing methods. - [Introduction to Piping Isometrics](https://designandengg.com/introduction-to-piping-isometrics/) - Piping Isometrics are a type of pictorial drawings that show the three principal dimensions of an object in one view. The principal dimensions are the limits of size for the object along the three principal directions. Pictorial drawings consist of visible object faces and the features lying on the faces with the internal features of the object largely hidden from view. They tend to present images of objects in a form that mimics what the human eye would see naturally. They are excellent starting point in visualization and design and are often used to supplement Multiview drawings. - [Design of fire safe valves](https://designandengg.com/design-of-fire-safe-valves/) - This post gives information regarding design of fire safe valves, its selection, inspection, testing requirements, specifications, and uses etc. - [Poisson's ratio for Concrete Material](https://designandengg.com/poissons-ratio-for-concrete-material/) - What is Poisson's ratio? What is Poisson's ratio for concrete material? All this brief information is covered in this post for civil or structural engineer. - [Coal Tar Coating and Wrapping of Underground Pipelines](https://designandengg.com/coal-tar-coating-and-wrapping-of-underground-pipelines/) - This blog covers the basic information about procedure for coal tar coating and wrapping of underground pipelines including, minimum requirements for materials cleaning, priming, coating & wrapping, inspection and testing of Coal tar coating to be provided on the field joints of underground steel lines. - [Hydrostatic Testing of Piping or Pipelines](https://designandengg.com/hydrostatic-testing-of-piping-or-pipelines/) - This blog gives you brief information regarding, hydrostatic testing of piping or pipelines. This covers Scope of Hydrostatic Testing of Piping or Pipelines, test procedure, test duration, test pressure, equipment’s required for hydro test, acceptance criteria for hydro test, test reports etc. In addition to above this covers basic information regarding minimum requirement of supply, works and operations to be performed by the Construction contractor for hydrostatic testing of cross country pipeline transporting high pressure. - [Abbreviations of Various International Standards](https://designandengg.com/abbreviations-of-various-international-standards/) - Various International Standards American Standards ABMA American Bearing Manufacturers Assoc. ACI American Concrete Institute AGA American Gas Association - [Ceramic Insulation](https://designandengg.com/ceramic-insulation/) - What is Ceramic-Cover or ceramic insulation? What Are The USES For Ceramic-Cover? Its basic characteristics, and use of ceramic cover or insulation in Insulation and weather barrier for Roofs, Metal Buildings, Steam Pipes, Tanks, and Boilers, HVAC Ductwork, Walls, Floors, and Ceilings, Refrigerated Trailers and Food Freezers. All about this brief information is covered in this weblog. - [Pipeway Design - Plant layout](https://designandengg.com/plant-layout-pipe-way-design/) - This post provides brief information about Pipe Way Pipe rack, Pipe track, Trenched Piping, Underground Piping, Information Required, Evaluation of Information - [Sir Mokshagundam Visvesvaraya](https://designandengg.com/sirmokshagundamvisvesvaraya/) - Sir Mokshagundam Visvesvaraya We are engineers, and we salute Sir Mokshagundam Visvesvaraya, a remarkable Indian engineer, scholar, statesman, and Diwan of Mysore from 1912 to 1918. Sir Visvesvaraya was honored with India’s highest civilian award, the Bharat Ratna, in 1955. Internationally, he was recognized by King George as KCIE (Knight Commander of the British Indian ## Pages - [Engineering Tools and Calculators](https://designandengg.com/engineering-tools-and-calculators/) - 1. Pipe Flow Calculator Inputs: Pipe diameter, length, flow rate, roughness, fluid type. Outputs: Pressure drop, Reynolds number, flow regime. Try Our Pipe Flow Calculator 2. Pump Sizing Tool Inputs: Flow rate, head, fluid density, efficiency. Outputs: Pump power requirement, NPSH, motor rating. Try Our Pump Sizing Tool 3. - [](https://designandengg.com/8862-2/) - Relief Valve Sizing Tool (API 520) Relief Valve Sizing (API 520) Relieving Pressure (psia) Temperature (°R) Molecular Weight Z (Compressibility Factor) K (Heat Capacity Ratio) Flow Rate (lb/hr) Discharge Coefficient (typically 0.975) Calculate Relief Area - [Pressure Drop Calculator](https://designandengg.com/pressure-drop-calculator/) - 🔽 Pressure Drop Calculator Flow Rate (m³/s): Pipe Diameter (m): Pipe Length (m): Kinematic Viscosity (m²/s): Pipe Roughness (m): Calculate Pressure Drop - [Energy Efficiency Estimator](https://designandengg.com/energy-efficiency-estimator/) - ⚡ Energy Efficiency Estimator Current Energy Usage (kWh/year): Proposed Efficient Usage (kWh/year): Electricity Cost (₹/kWh): Estimate Savings - [CFD Mesh Quality Checker](https://designandengg.com/cfd-mesh-quality-checker/) - 🧮 CFD Mesh Quality Checker Skewness (0 to 1): Orthogonality (0 to 1): Aspect Ratio: Max Non-Orthogonality (deg): Check Mesh Quality - [FIV Calculator](https://designandengg.com/fiv-calculator/) - 💨 Flow-Induced Vibration (FIV) Calculator Pipe Inside Diameter (mm): Flow Velocity (m/s): Fluid Density (kg/m³): Acoustic Velocity (m/s): Evaluate FIV Risk - [Flare Stack Design Estimator](https://designandengg.com/flare-stack-design-estimator/) - 🔥 Flare Stack Design Estimator Gas Mass Flow Rate (kg/h): Gas Molecular Weight (g/mol): Gas Temperature (°C): Acceptable Exit Velocity (m/s): Estimate Stack Size - [Heat Exchanger Sizing Tool](https://designandengg.com/heat-exchanger-sizing-tool/) - 🔥 Heat Exchanger Sizing Tool Heat Duty (kW): Overall Heat Transfer Coefficient (W/m²·K): Hot Inlet Temp (°C): Hot Outlet Temp (°C): Cold Inlet Temp (°C): Cold Outlet Temp (°C): Calculate 🔍 - [Pump Sizing Tool](https://designandengg.com/pump-sizing-tool/) - 🔧 Pump Sizing Tool Flow Rate (m³/h): Total Head (m): Fluid Density (kg/m³): Pump Efficiency (%): Calculate 🔍 - [Pipe Flow Calculator](https://designandengg.com/pipe-flow-calculator/) - 🚰 Pipe Flow Calculator Flow Rate (m³/s): Pipe Diameter (m): Kinematic Viscosity (m²/s): Calculate 🔍 - [Pipe Wall Thickness Calculator](https://designandengg.com/pipe-wall-thickness-calculator/) - ASME B31.3 Pipe Wall Thickness Calculator Design Pressure (P) in MPa: Outside Diameter (Do) in mm: Allowable Stress (S) in MPa: Weld Joint Efficiency (E): Corrosion Allowance (CA) in mm: Calculate Thickness - [About](https://designandengg.com/about/) - Welcome to our Design and Engineering Community! We are Engineers, and we proudly honor Sir Mokshagundam Visvesvaraya, an esteemed Indian engineer, scholar, statesman, and Diwan of Mysore from 1912 to 1918. He was awarded India's highest honor, the Bharat Ratna, in 1955. Internationally, he was recognized by King George with the title KCIE (Knight Commander - [Questions](https://designandengg.com/questions-2/) - Ask question Search Order By: ActiveCategoryTagClear Filter 1 Ans high temperature > 500 degC gas to flare during start-up 2.23K viewsAdmin Changed status to publish Engineeringdesign flare 1 Ans Localized Heat Treatment 3.49K viewsAdmin Answered question EngineeringPipelinePipingTechnical 1 Ans Composite Pipe Applications 4.17K viewsAdmin Answered question EngineeringPipelinePipingTechnical 1 Ans Corrosion Monitoring Techniques 3.55K viewsAdmin Answered - [Job Submission](https://designandengg.com/job-submission/) - [submit_job_form] - [JOB Dashboard](https://designandengg.com/job-dashboard/) - [job_dashboard] - [Job Listing](https://designandengg.com/job-archive/) - [jobs] - [Home](https://designandengg.com/home/) - Welcome to our new website Design and Engineering!!. 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Provide your E-mail Submit Δ - [Design and Engineering](https://designandengg.com/category-design-and-engineering/) ## Questions - [high temperature > 500 degC gas to flare during start-up](https://designandengg.com/question/high-temperature-500-degc-gas-to-flare-during-start-up/) - Can I send a 500 degC flammable gas direct to the flare or does this gas need to be cooled down e.g. to below - [Localized Heat Treatment](https://designandengg.com/question/localized-heat-treatment/) - Localized Heat Treatment - [Composite Pipe Applications](https://designandengg.com/question/composite-pipe-applications/) - Composite Pipe Applications - [Corrosion Monitoring Techniques](https://designandengg.com/question/corrosion-monitoring-techniques/) - Corrosion Monitoring Techniques - [Thermal Insulation Advancements](https://designandengg.com/question/thermal-insulation-advancements/) - Thermal Insulation Advancements - [What are Hydrotesting Tricks?](https://designandengg.com/question/what-are-hydrotesting-tricks/) - What are Hydrotesting Tricks? - [Pigging Innovations](https://designandengg.com/question/pigging-innovations/) - Pigging Innovations - [What is a purpose of heat treatment?](https://designandengg.com/question/what-is-a-purpose-of-heat-treatment/) - What is a purpose of heat treatment? - [What is difference between Elastomer and Polymer material?](https://designandengg.com/question/what-is-difference-between-elastomer-and-polymer-material/) - What is difference between Elastomer and Polymer material? - [What is integral lagging extension for valves?](https://designandengg.com/question/what-is-integral-lagging-extension-for-valves/) - What is integral lagging extension for valves? - [What is IBR and which lines need IBR review?](https://designandengg.com/question/what-is-ibr-and-which-lines-need-ibr-review/) - What is IBR and which lines need IBR review? - [Why Drip Leg is required in Steam Line?](https://designandengg.com/question/why-drip-leg-is-required-in-steam-line/) - Why Drip Leg is required in Steam Line? - [What is the objective of stress analysis ?](https://designandengg.com/question/what-is-the-objective-of-stress-analysis/) - What is the objective of stress analysis ? - [What do you mean by Stress Intensity Factor (SIF)?](https://designandengg.com/question/what-do-you-mean-by-stress-intensity-factor-sif/) - What do you mean by Stress Intensity Factor (SIF)? - [Why do we provide Drip Leg in Steam Line?](https://designandengg.com/question/why-do-we-provide-drip-leg-in-steam-line/) - Why do we provide Drip Leg in Steam Line? - [What are WRC 107 / WRC 297?](https://designandengg.com/question/what-are-wrc-107-wrc-297/) - What are WRC 107 / WRC 297? - [What is water hammering? How is it prevented?](https://designandengg.com/question/what-is-water-hammering-how-is-it-prevented/) - What is water hammering? How is it prevented? - [What is temperature range for PTFE & RPTFE?](https://designandengg.com/question/what-is-temperature-range-for-ptfe-rptfe/) - What is temperature range for PTFE & RPTFE? - [What is the seat material and where to go for soft seat and metal seat?](https://designandengg.com/question/what-is-the-seat-material-and-where-to-go-for-soft-seat-and-metal-seat/) - What is the seat material and where to go for soft seat and metal seat? - [What is temperature range and properties of Viton?](https://designandengg.com/question/what-is-temperature-range-and-properties-of-viton/) - What is temperature range and properties of Viton? - [What is the difference between alloy 825 & alloy 625?](https://designandengg.com/question/what-is-the-difference-between-alloy-825-alloy-625/) - What is the difference between alloy 825 & alloy 625? - [What type of reducers being used at pump suction?](https://designandengg.com/question/what-type-of-reducers-being-used-at-pump-suction/) - What type of reducers being used at pump suction? - [What are the consumption norms for Dissolved Acetylene and Oxygen?](https://designandengg.com/question/what-are-the-consumption-norms-for-dissolved-acetylene-and-oxygen/) - What are the consumption norms for Dissolved Acetylene and Oxygen? - [Aligning any rotating machinery, what are the pre-alignment checks to be done?](https://designandengg.com/question/aligning-any-rotating-machinery-what-are-the-pre-alignment-checks-to-be-done/) - Aligning any rotating machinery, what are the pre-alignment checks to be done? - [What is cavitation in pump or pump cavitation?](https://designandengg.com/question/what-is-cavitation-in-pump-or-pump-cavitation/) - What is cavitation in pump or pump cavitation? - [What is single stage and multi-stage centrifugal pump?](https://designandengg.com/question/what-is-single-stage-and-multi-stage-centrifugal-pump/) - What is single stage and multi-stage centrifugal pump? - [What is the device used to locate the defects on surface of coating & wrapping?](https://designandengg.com/question/what-is-the-device-used-to-locate-the-defects-on-surface-of-coating-wrapping/) - What is the device used to locate the defects on surface of coating & wrapping? - [Why desalters are always horizontal?](https://designandengg.com/question/why-desalters-are-always-horizontal/) - Why desalters are always horizontal? - [Name two most commonly used methods for Heat Exchanger Tube Cleaning](https://designandengg.com/question/name-two-most-commonly-used-methods-for-heat-exchanger-tube-cleaning/) - Name two most commonly used methods for Heat Exchanger Tube Cleaning - [What is FBE coating thickness?](https://designandengg.com/question/what-is-fbe-coating-thickness-2/) - What is FBE coating thickness? - [What is catastrophic failure?](https://designandengg.com/question/what-is-catastrophic-failure/) - What is catastrophic failure? - [What is Line Routing Diagram?](https://designandengg.com/question/what-is-line-routing-diagram/) - What is Line Routing Diagram? - [Why the WPS and the PQR are used?](https://designandengg.com/question/why-the-wps-and-the-pqr-are-used/) - Why the WPS and the PQR are used? - [Where to locate furnace in any plot plan](https://designandengg.com/question/where-to-locate-furnace-in-any-plot-plan/) - Where to locate furnace in any plot plan? - [Which things we need to look in, for design of Plot plan/Equipment Layout.](https://designandengg.com/question/which-things-we-need-to-look-in-for-design-of-plot-plan-equipment-layout/) - Which things we need to look in, while designing Plot plan/Equipment Layout - [Why Series A preferred than Series B for large size flanges?](https://designandengg.com/question/why-series-a-preferred-than-series-b-for-large-size-flanges/) - Why Series A flanges are more preferred than series B? - [IT CAN APPLY POSITIVE + THE NEWTON III LAW AS A CYCLE SYSYEM ON AN MOTOR ENGINE DEVICE?](https://designandengg.com/question/it-can-apply-positive-the-newton-iii-law-as-a-cycle-sysyem-on-an-motor-engine-device/) - SEE DETAIL AT THE WEB - [What is mean by brownfield project?](https://designandengg.com/question/what-is-mean-by-brownfield-project/) - What is mean by brownfield project? - [Can you provide some industrial applications of ultrasonic waves?](https://designandengg.com/question/can-you-provide-some-industrial-applications-of-ultrasonic-waves/) - Can you provide some industrial applications of ultrasonic waves? - [What is Piezoelectric Effect?](https://designandengg.com/question/what-is-piezoelectric-effect/) - What is Piezoelectric Effect? - [What is mean by Oscillation?](https://designandengg.com/question/what-is-mean-by-oscillation/) - What is mean by Oscillation? - [What is mean by triple point in Thermodynamics?](https://designandengg.com/question/what-is-mean-by-triple-point-in-thermodynamics/) - What is mean by triple point in Thermodynamics? - [What is mean by greenfield project?](https://designandengg.com/question/what-is-mean-by-greenfield-project/) - What is mean by greenfield project? - [To increase the corrosion resistance of steel which elements do you need?](https://designandengg.com/question/to-increase-the-corrosion-resistance-of-steel-which-elements-do-you-need/) - To increase the corrosion resistance of steel which elements do you need? - [Difference between a tube and a pipe?](https://designandengg.com/question/difference-between-a-tube-and-a-pipe/) - Difference between a tube and a pipe? - [What is mechanical refrigeration?](https://designandengg.com/question/what-is-mechanical-refrigeration/) - What is mechanical refrigeration? - [What is the second law of thermodynamics?](https://designandengg.com/question/what-is-the-second-law-of-thermodynamics/) - What is the second law of thermodynamics? - [What is fatigue and creep and its main difference?](https://designandengg.com/question/what-is-fatigue-and-creep-and-its-main-difference/) - What is fatigue and creep and its main difference? - [Can you explain difference between a column and strut?](https://designandengg.com/question/can-you-explain-difference-between-a-column-and-strut/) - Can you explain difference between a column and strut? - [Iron cross contamination](https://designandengg.com/question/iron-cross-contamination/) - We have a case where we have installed a stainless steel pipe system to carry water (LTHW), At the initial fill a water tank (Carbon steel) has been used, when we drained the system we have found that its heavy with orange sludge near the couplings and we have drained the sumps and low areas - [foam bladder tank installed, is it logical?](https://designandengg.com/question/foam-bladder-tank-installed-is-it-logical/) - Foam bladder tank installed, is it logical? Against Sprinkler - [What is the difference between welding and brazing?](https://designandengg.com/question/what-is-the-difference-between-welding-and-brazing/) - What is the difference between welding and brazing? - [In connection with safety relief valves what does "2G3" stand for?](https://designandengg.com/question/in-connection-with-safety-relief-valves-what-does-2g3-stand-for/) - In connection with safety relief valves what does "2G3" stand for? - [If water is non-conductive of electricity, why do we get electrical shock more easily when we are wet?](https://designandengg.com/question/if-water-is-non-conductive-of-electricity-why-do-we-get-electrical-shock-more-easily-when-we-are-wet/) - If water is non-conductive of electricity, why do we get electrical shock more easily when we are wet? - [While preparing to hand over a control valve to maintenance it is isolated, depressurized and drained. Whether the control valve should be in open or closed position after isolation?](https://designandengg.com/question/while-preparing-to-hand-over-a-control-valve-to-maintenance-it-is-isolated-depressurized-and-drained-whether-the-control-valve-should-be-in-open-or-closed-position-after-isolation/) - While preparing to hand over a control valve to maintenance it is isolated, depressurized and drained. Whether the control valve should be in open or closed position after isolation? - [How to read prevailing wind direction indicated in any project documents?](https://designandengg.com/question/how-to-read-prevailing-wind-direction-indicated-in-any-project-documents/) - How to read prevailing wind direction indicated in any project documents? - [What is lost time accident?](https://designandengg.com/question/what-is-lost-time-accident-2/) - What is lost time accident? - [What is GTAW?](https://designandengg.com/question/what-is-gtaw/) - What is GTAW? - [How should be determined, the nondestructive examination method to be used for a particular inspection?](https://designandengg.com/question/how-should-be-determined-the-nondestructive-examination-method-to-be-used-for-a-particular-inspection/) - How should be determined, the nondestructive examination method to be used for a particular inspection? - [What is MSV?](https://designandengg.com/question/what-is-msv/) - What is MSV? - [Valves at Relief Valve outlets](https://designandengg.com/question/valves-at-relief-valve-outlets/) - What type of valves do we use at Relief Valve outlets? - [What is a foot valve (in centrifugal or Submersible PCP pumps)](https://designandengg.com/question/what-is-a-foot-valve-hint-in-centrifugal-or-submersible-pcp-pumps/) - What is a foot valve (in centrifugal or Submersible PCP pumps) - [What is the meaning of AFC and AFD in drawings?](https://designandengg.com/question/what-is-the-meaning-of-afc-and-afd-in-drawings/) - What is the meaning of AFC and AFD in drawings? - [What is the difference between Cetane Index and Cetane Number?](https://designandengg.com/question/what-is-the-difference-between-cetane-index-and-cetane-number/) - What is the difference between Cetane Index and Cetane Number? - [Why does a glass bottle crack when it is filled with water and frozen?](https://designandengg.com/question/why-does-a-glass-bottle-crack-when-it-is-filled-with-water-and-frozen/) - Why does a glass bottle crack when it is filled with water and frozen? - [What is TSV or TRV and Where do we use it?](https://designandengg.com/question/what-is-tsv-or-trv-and-where-do-we-use-it/) - What is TSV or TRV and Where do we use it? - [What is the full form of CPI?](https://designandengg.com/question/what-is-the-full-form-of-cpi/) - What is the full form of CPI? - [Why the under ground lines should not be steam flushed?](https://designandengg.com/question/why-the-under-ground-lines-should-not-be-steam-flushed/) - Why the under ground lines should not be steam flushed? - [What is lost time accident?](https://designandengg.com/question/what-is-lost-time-accident/) - What is lost time accident? - [What is zone-0, where is it in refinery?](https://designandengg.com/question/what-is-zone-0-where-is-it-in-refinery/) - What is zone-0, where is it in refinery? - [Valve stem of a gate valve in flare header](https://designandengg.com/question/valve-stem-of-a-gate-valve-in-flare-header/) - Can anyone tell details of valve stem of a gate valve in flare header, whether it should face upwards or downwards and why? - [Suggestions for Reducing Equipment Loading](https://designandengg.com/question/suggestions-for-reducing-equipment-loading/) - Can anyone guide or give Suggestions for Reducing Equipment Loading - [Hyd. test of FBE Spool](https://designandengg.com/question/hyd-test-of-fbe-spool/) - After FBE coating of a Spool, Is Hydrotest is allowed ? Cat-D service. - [There is a steam piping with low pocket but without steam trap. What will be worst consequence?](https://designandengg.com/question/there-is-a-steam-piping-with-low-pocket-but-without-steam-trap-what-will-be-worst-consequence/) - There is a steam piping with low pocket but without steam trap. What will be worst consequence of this layout? - [There is a power plant ANSI B31.1 & ANSI B31.3 scope break](https://designandengg.com/question/there-is-a-power-plant-ansi-b31-1-ansi-b31-3-scope-break/) - There is a power plant inside a Process refinery. Where exactly the ANSI B31.1 & ANSI B31.3 scope break occurs? - [Why Stainless steel is not used in sour services?](https://designandengg.com/question/why-stainless-steel-is-not-used-in-sour-services/) - Why Stainless steel is not used and Duplex SS is used in sour services? - [What is weep point?](https://designandengg.com/question/what-is-weep-point/) - What is weep point? - [What does SER stand for?](https://designandengg.com/question/what-does-ser-stand-for/) - What does SER stand for? - [What is the maximum height permissible for tanks as per OISD?](https://designandengg.com/question/what-is-the-maximum-height-permissible-for-tanks-as-per-oisd/) - What is the maximum height permissible for tanks as per OISD? - [What is FBE coating thickness?](https://designandengg.com/question/what-is-fbe-coating-thickness/) - What is FBE coating thickness? - [What are FBE coating limitations?](https://designandengg.com/question/what-are-fbe-coating-limitations/) - What are FBE coating limitations? - [Underground Lines Steam Flushing](https://designandengg.com/question/underground-lines-steam-flushing/) - Why the underground lines should not be steam flushed? ## Answers - [high temperature > 500 degC gas to flare during start-up](https://designandengg.com/question/high-temperature-500-degc-gas-to-flare-during-start-up/answer/8715/) - You cannot safely send a 500°C flammable gas directly to a typical carbon steel flare line without addressing the following key issues: Standard carbon steel used in flare headers and piping typically has a maximum operating temperature of around 425°C (797°F). At 500°C, carbon steel can: Experience significant loss of strength and mechanical integrity, Be - [Localized Heat Treatment](https://designandengg.com/question/localized-heat-treatment/answer/7877/) - In situations where post-weld heat treatment (PWHT) of entire pipelines is impractical or costly, localized heat treatment techniques like induction heating can be employed. Induction heating selectively heats specific areas of the weld joint, relieving residual stresses and improving the microstructure without heating the entire pipeline, thus minimizing downtime and energy consumption. - [Composite Pipe Applications](https://designandengg.com/question/composite-pipe-applications/answer/7874/) - Composite pipes, made from materials like fiberglass reinforced plastic (FRP) or carbon fiber reinforced polymer (CFRP), offer advantages over traditional materials in corrosive or demanding environments. Beyond their corrosion resistance, composite pipes exhibit superior fatigue resistance, making them ideal for applications subjected to cyclic loading, such as offshore risers or piping in seismic zones. - [Corrosion Monitoring Techniques](https://designandengg.com/question/corrosion-monitoring-techniques/answer/7871/) - While techniques like corrosion coupons or electrical resistance probes are well-established for monitoring corrosion rates, emerging technologies such as electrochemical noise analysis (ENA) offer a more nuanced approach. ENA detects and analyzes small electrical signals generated by corrosion processes, providing early warnings of corrosion activity even before visible signs appear. - [Thermal Insulation Advancements](https://designandengg.com/question/thermal-insulation-advancements/answer/7868/) - Traditional insulation materials like fiberglass or mineral wool have limitations in extreme temperatures or corrosive environments. Emerging insulation technologies include aerogels, which offer superior thermal performance and are highly resistant to corrosion. Aerogel-based insulation is also more compact, allowing for thinner insulation layers without compromising effectiveness. - [Pigging Innovations](https://designandengg.com/question/pigging-innovations/answer/7865/) - Pigging refers to the practice of using devices called "pigs" to clean, inspect, or maintain pipelines. Advanced pigs now incorporate various sensors, such as ultrasonic or magnetic flux leakage sensors, to detect defects or measure pipe wall thickness more accurately. Additionally, smart pigs equipped with GPS and inertial measurement units can precisely track their location - [What are Hydrotesting Tricks?](https://designandengg.com/question/what-are-hydrotesting-tricks/answer/7861/) - Hydrostatic testing is a standard procedure for ensuring the integrity of pipelines. One less-known trick is the use of "stress-relief cuts." These cuts are made at specific intervals along the pipe circumference before testing. They help to alleviate stress concentrations during pressurization, reducing the likelihood of failure. - [What is a purpose of heat treatment?](https://designandengg.com/question/what-is-a-purpose-of-heat-treatment/answer/6465/) - Heat treatment is used on materials to relieve the stresses set up in the material after hot or cold working to modify the structure of the material and to change grain size. - [What is difference between Elastomer and Polymer material?](https://designandengg.com/question/what-is-difference-between-elastomer-and-polymer-material/answer/6442/) - The key difference between elastomer and polymer is that a polymer is any large molecule which is built with small units called monomers whereas elastomer is a special type of polymer which has elastic property. - [What is integral lagging extension for valves?](https://designandengg.com/question/what-is-integral-lagging-extension-for-valves/answer/6425/) - Integral lagging extension is for stem of valve. Basically, this is used for insulated or jacketed valves like in cryogenic service valves. This is used for ease in handling operation of valve without obstructing any insulation or jacketing. - [What is IBR and which lines need IBR review?](https://designandengg.com/question/what-is-ibr-and-which-lines-need-ibr-review/answer/5877/) - IBR long form is Indian Boiler Regulation Act. Normally Steam lines with conditions listed below comes under IBR purview • Lines for which design pressure is 3.5 kg/sq cm and above. • Line size above 10” having design pressure 1.0 kg/sq cm and above. • Boiler feed water lines to steam generator, condensate lines to - [Why Drip Leg is required in Steam Line?](https://designandengg.com/question/why-drip-leg-is-required-in-steam-line/answer/5861/) - Drip leg is required to remove Condensate when there is a rise in the pipe along the flow direction. If we do not provide the drip leg in steam line, the condensate which forms inside the pipe will result in Water Hammer effect causing damage to piping system. - [What is the objective of stress analysis ?](https://designandengg.com/question/what-is-the-objective-of-stress-analysis/answer/5695/) - Stress analysis is carried out to ensure that the stresses in piping components in the system are within allowable limits. To solve dynamic problems developed due to mechanical vibration, fluid hammer, pulsation, relief valves, etc. Additionally to solve problems associated due to higher or lower operating temperature as: - Displacement stress range. - Nozzle loading - [What do you mean by Stress Intensity Factor (SIF)?](https://designandengg.com/question/what-do-you-mean-by-stress-intensity-factor-sif/answer/5678/) - Stress Intensity Factor (SIF) is the ratio of maximum stress intensity to normal stress. It is used as safe factor to account for the effect of localised stress on piping under respective loading. In piping it is applied to welds, fittings, branch connections etc where stress concentration and possible fatigue failure may occur. Example: - - [Why do we provide Drip Leg in Steam Line?](https://designandengg.com/question/why-do-we-provide-drip-leg-in-steam-line/answer/5661/) - To remove condensate when there is a rise of same in the pipe along the flow direction. If drip leg is not provided in steam line, the condensate which forms inside the pipe will result in Water Hammer effect causing damage to piping system. - [What are WRC 107 / WRC 297?](https://designandengg.com/question/what-are-wrc-107-wrc-297/answer/5644/) - Localised stresses at Nozzle to Shell is calculated by WRC 107 / 297 and these computed stress values shall be limited in accordance with ASME Sec VIII for Pressure Vessels. - [What is the device used to locate the defects on surface of coating & wrapping?](https://designandengg.com/question/what-is-the-device-used-to-locate-the-defects-on-surface-of-coating-wrapping/answer/5485/) - Holiday Detector is used for surface coating and wrapping defects. - [What is single stage and multi-stage centrifugal pump?](https://designandengg.com/question/what-is-single-stage-and-multi-stage-centrifugal-pump/answer/5468/) - These pumps are classified based on impeller design and used mainly for high capacity pumps and to increase NPSH. The Single stage pump has one impeller and multi-stage pump has two or more impellers in series. The discharge of one impeller is the suction of the next one. Head developed in all the stages are - [What is cavitation in pump or pump cavitation?](https://designandengg.com/question/what-is-cavitation-in-pump-or-pump-cavitation/answer/5451/) - When liquid vaporizes its volume increases drastically, hence for adequate running of pumps, vaporization of the liquid shall be avoided during operation, since pumps are designed to handle liquid and not vapor. For e.g. for same or room temperature 4 ft3 of water becomes 3400 ft3 of vapor. The vaporization begins when vapor pressure of - [What are the consumption norms for Dissolved Acetylene and Oxygen?](https://designandengg.com/question/what-are-the-consumption-norms-for-dissolved-acetylene-and-oxygen/answer/5420/) - Consumption norms are different for piping, structure or support fabrication at shop. Below are norms for dissolved acetylene and oxygen. Dissolved Acetylene (D.A.) for piping work : 0.0140 Cu-M/ inch dia. Oxygen (O2) for piping work : 0.0510 Cu-M/ inch dia. Dissolved Acetylene (D.A.) For structural work : 2.2 Cu-M/ inch dia. Oxygen (O2) For - [Aligning any rotating machinery, what are the pre-alignment checks to be done?](https://designandengg.com/question/aligning-any-rotating-machinery-what-are-the-pre-alignment-checks-to-be-done/answer/5406/) - Before proceeding with pre-alignment, below checks need to be done. - First thing to check the machine is properly secured to foundation. - Check for any excessive run-out conditions i.e. Eccentric coupling bore, Bent Shaft etc. - Machine to base plate interface problems i.e. soft foot. - Ensure that no piping loads are coming on - [What type of reducers being used at pump suction?](https://designandengg.com/question/what-type-of-reducers-being-used-at-pump-suction/answer/5346/) - Reducer with flat side up (FSU) is used in Pump Suction. If concentric reducer is used at pump suction, air pockets may form and which results in cavitation and cause damage to Pump. To avoid this problem, Eccentric reducer FSU is used. - [What is the difference between alloy 825 & alloy 625?](https://designandengg.com/question/what-is-the-difference-between-alloy-825-alloy-625/answer/5287/) - Alloy 825 and 625 are Nickel Chromium Alloys used for highly corrosive services with pitting. Major difference is 825 alloy contains 42% Nickel, 22% Cr and 3% Mo, 30% Fe, whereas 625 Alloy contains 60% Ni,22% Cr and 9% Mo, 3.5Cb. In addition to above tensile and yield strength of alloy 625 is more than - [What is temperature range and properties of Viton?](https://designandengg.com/question/what-is-temperature-range-and-properties-of-viton/answer/5270/) - Temperature range for Viton is -100C to 2600C. It has excellent resistance to acids, hot water, low pressure steam, chlorinated solvents, aliphatic and aromatic petroleum fuels, ozone, weather, lubricants, animal or vegetable oils. - [What is temperature range for PTFE & RPTFE?](https://designandengg.com/question/what-is-temperature-range-for-ptfe-rptfe/answer/5252/) - Temperature Range for PTFE is 1000C to 2300C and for PEEK is 1000C to 2600C. - [What is the seat material and where to go for soft seat and metal seat?](https://designandengg.com/question/what-is-the-seat-material-and-where-to-go-for-soft-seat-and-metal-seat/answer/5235/) - For Low Temperature services Soft Seat valves can be used, and for high temperature applications metal seat valves. Soft Seat – PTFE/PEEK/Nylon/Synthetic Rubbers Metal Seat – CS/SS/DSS - [What is water hammering? How is it prevented?](https://designandengg.com/question/what-is-water-hammering-how-is-it-prevented/answer/5185/) - When flow in liquid lines is suddenly stopped due to quick closing of valve, the kinetic energy converts into pressure energy, which causes the water hammer. This can damage the line. - [Why desalters are always horizontal?](https://designandengg.com/question/why-desalters-are-always-horizontal/answer/5167/) - Since horizontal position will provide larger cross sectional area, this will reduce velocity and thus aid in settling of water. - [Name two most commonly used methods for Heat Exchanger Tube Cleaning](https://designandengg.com/question/name-two-most-commonly-used-methods-for-heat-exchanger-tube-cleaning/answer/5148/) - Hydrojetting ( with high pressure water jet) and Roding - [What is FBE coating thickness?](https://designandengg.com/question/what-is-fbe-coating-thickness-2/answer/4975/) - Standard FBE coating thickness ranges between 250 to 500 microns (0.25 to 0.5mm). - [What is catastrophic failure?](https://designandengg.com/question/what-is-catastrophic-failure/answer/4820/) - The failures which occurs suddenly as soon as the load crosses the threshold (Ultimate tensile strength). These failures take place on the first occurrence of the loads in excess of yield stress. - [What is Line Routing Diagram?](https://designandengg.com/question/what-is-line-routing-diagram/answer/4816/) - A line routing diagram is a schematic representation of all process and utility-piping system drawn on a copy of plot plan. This diagram does not show the exact locations, elevations or interference but it locates the most congested area. - [Why the WPS and the PQR are used?](https://designandengg.com/question/why-the-wps-and-the-pqr-are-used/answer/4812/) - WPS and PQR are used to determine if a weldment has the required properties for the intended application. - [Where to locate furnace in any plot plan](https://designandengg.com/question/where-to-locate-furnace-in-any-plot-plan/answer/4809/) - Furnace Located upwind or side wind of process units to blow any combustible leaks away from flame and 90M away from Hydrocarbon tanks and 30M from control rooms. - [Which things we need to look in, for design of Plot plan/Equipment Layout.](https://designandengg.com/question/which-things-we-need-to-look-in-for-design-of-plot-plan-equipment-layout/answer/4805/) - More important things are as below for any plot plan or equipment layout design. 1. Development of detailed, equipment layout/unit plot plan as per OISD 118 requirements. 2. Aspects of erection, maintenance, operation and safety 3. Required Data- P&IDS, Overall Plot plan, Wind Direction, Equipment Data sheets, process package etc. 4. Process requirement with sequence. - [Why Series A preferred than Series B for large size flanges?](https://designandengg.com/question/why-series-a-preferred-than-series-b-for-large-size-flanges/answer/4801/) - Series A flanges are having more allowable stress values than series B flanges. Hence considering design allowables, series A flanges are more preferred. Series B flanges are compact in nature and both series flanges having different PCD. Hence before procurement of interface flanges on any equipment, make sure for mating flange series. - [IT CAN APPLY POSITIVE + THE NEWTON III LAW AS A CYCLE SYSYEM ON AN MOTOR ENGINE DEVICE?](https://designandengg.com/question/it-can-apply-positive-the-newton-iii-law-as-a-cycle-sysyem-on-an-motor-engine-device/answer/3880/) - Retrodynamic Effect = DextroGiro => VS VS VS - [What is mean by brownfield project?](https://designandengg.com/question/what-is-mean-by-brownfield-project/answer/3483/) - Any new project, which is carried out in existing facility or expansion/modification to existing facility is called brownfield project. - [Can you provide some industrial applications of ultrasonic waves?](https://designandengg.com/question/can-you-provide-some-industrial-applications-of-ultrasonic-waves/answer/3207/) - Some of the industrial applications for ultrasonic waves are as below, In Welding - Ultrasonic welding which is used to weld parts in aerospace and automobile industry. In Sound Navigation and ranging - Ultrasonic waves are used in SONAR (Sound Navigation And Ranging) to navigate, communicate or to detect objects under the surface of water. - [What is Piezoelectric Effect?](https://designandengg.com/question/what-is-piezoelectric-effect/answer/3203/) - If a piezoelectric material is subjected to pressure or squeezing or twisting, the electric charges are developed in the other two faces of the crystal. This phenomenon is called as piezoelectric effect. - [What is mean by Oscillation?](https://designandengg.com/question/what-is-mean-by-oscillation/answer/3198/) - In general, an oscillation is a periodic fluctuation in the value of physical quantity above and below equilibrium value. - [What is mean by triple point in Thermodynamics?](https://designandengg.com/question/what-is-mean-by-triple-point-in-thermodynamics/answer/3193/) - Triple point is the temperature and pressure of a substance at which the solid, liquid, and vapor phases of a substance can coexist in equilibrium. - [What is mean by greenfield project?](https://designandengg.com/question/what-is-mean-by-greenfield-project/answer/3188/) - These are the projects, which are built from scratch and does not create pollution. - [To increase the corrosion resistance of steel which elements do you need?](https://designandengg.com/question/to-increase-the-corrosion-resistance-of-steel-which-elements-do-you-need/answer/3184/) - Using Chromium and nickel composition corrosion resistance of steel is increased. - [Difference between a tube and a pipe?](https://designandengg.com/question/difference-between-a-tube-and-a-pipe/answer/3180/) - Pipes are always round while tubes can come in different shapes such as rectangular, square, or cylindrical. A pressure force is evenly distributed due to the circular shape of a pipe. Outside diameter (OD) and wall thickness (WT) are used to measure a both pipe and tube. - [What is mechanical refrigeration?](https://designandengg.com/question/what-is-mechanical-refrigeration/answer/3176/) - Mechanical refrigeration is a process where heat is removed from a chosen location, using an artificial heat exchange system. This refrigeration system can be thermoelectric, magnetic, non-cyclic, cyclic, and will depend on the refrigeration application needed. - [What is the second law of thermodynamics?](https://designandengg.com/question/what-is-the-second-law-of-thermodynamics/answer/3172/) - The second law of thermodynamics states that total entropy will always increase within a closed system and can never decrease over time. - [What is fatigue and creep and its main difference?](https://designandengg.com/question/what-is-fatigue-and-creep-and-its-main-difference/answer/3168/) - Mainly fatigue is the reduced tendency of a material to offer resistance to applied stress under repeated or fluctuating loading conditions. Whereas creep is low and progressive deformation of a material with time under constant stress at high-temperature applications. - [Can you explain difference between a column and strut?](https://designandengg.com/question/can-you-explain-difference-between-a-column-and-strut/answer/3164/) - A Column is always be in vertical, however strut can be installed in any direction. Additionally strut could carry an axial compressive force in any direction. A strut and column both carry the compressive load. - [Iron cross contamination](https://designandengg.com/question/iron-cross-contamination/answer/3099/) - Dear Matt, Thanks for your question. Looking in to your case of iron formation, it seems to be a galvanic corrosion between pipe having SS material of construction and CS tank. Additionally second cause of this may be water quality. Composition of water has to be checked for proper selection of SS material for pipe. - [foam bladder tank installed, is it logical?](https://designandengg.com/question/foam-bladder-tank-installed-is-it-logical/answer/3014/) - Sprinkler and Foam Bladder tank are different in use. Since Foam Bladder tank is used for storage of foam concentrate, it cannot be used as sprinkler. - [What is the difference between welding and brazing?](https://designandengg.com/question/what-is-the-difference-between-welding-and-brazing/answer/3005/) - In welding complete fusion of weld material takes place. In brazing the filler metal is fused the parent metal does not melt at all. - [In connection with safety relief valves what does “2G3” stand for?](https://designandengg.com/question/in-connection-with-safety-relief-valves-what-does-2g3-stand-for/answer/3001/) - The first digit indicates the inlet port size, the second alphabet represents the orifice area and the third digit stands for the outlet port size. - [If water is non-conductive of electricity, why do we get electrical shock more easily when we are wet?](https://designandengg.com/question/if-water-is-non-conductive-of-electricity-why-do-we-get-electrical-shock-more-easily-when-we-are-wet/answer/2997/) - Since ordinary water is ionized due to presence of various salts which increase its conductivity. - [While preparing to hand over a control valve to maintenance it is isolated, depressurized and drained. Whether the control valve should be in open or closed position after isolation?](https://designandengg.com/question/while-preparing-to-hand-over-a-control-valve-to-maintenance-it-is-isolated-depressurized-and-drained-whether-the-control-valve-should-be-in-open-or-closed-position-after-isolation/answer/2993/) - It should remain open so that complete depressurization and draining can take place. - [How to read prevailing wind direction indicated in any project documents?](https://designandengg.com/question/how-to-read-prevailing-wind-direction-indicated-in-any-project-documents/answer/2989/) - Normally any wind directions indicated in any documents are indicated as travelling from. For e.g. suppose Prevailing wind direction is indicated as S (South) in any project documents, then it should be read as wind direction is from South. This means wind direction is started from S (South) and travelling to N (North) direction. - [What is lost time accident?](https://designandengg.com/question/what-is-lost-time-accident-2/answer/2985/) - An injured person remain away as a result of accident for more than a day (excluding the day of accident and the day of reporting), it is treated as lost time accident. - [What is GTAW?](https://designandengg.com/question/what-is-gtaw/answer/2981/) - GTAW is Gas Tungsten Arc Welding. In a certain arc welding process, coalescence of metals is produced by an arc between a tungsten electrode and the work, and shielding is obtained from a gas or gas mixture. Both pressure and filler metal may or may not be used. This process is called as GTAW. - [How should be determined, the nondestructive examination method to be used for a particular inspection?](https://designandengg.com/question/how-should-be-determined-the-nondestructive-examination-method-to-be-used-for-a-particular-inspection/answer/2977/) - It depends on type, location, and orientation of the expected flaws to determine method for nondestructive examination. - [Valves at Relief Valve outlets](https://designandengg.com/question/valves-at-relief-valve-outlets/answer/2959/) - FB (Full Bore) valves, are used at all relief valve outlet lines. However relief valve discharge open to atmosphere, are provided without valves. - [What is MSV?](https://designandengg.com/question/what-is-msv/answer/2954/) - MSV is Multi Selector Valve and Used in Oil and Gas industry. MSV is used to connect multiple Wells, to send oil to production and test separators. - [What is a foot valve (hint – in centrifugal or Submersible PCP pumps)](https://designandengg.com/question/what-is-a-foot-valve-hint-in-centrifugal-or-submersible-pcp-pumps/answer/2374/) - Foot valve is provided in suction of lift pumps or PCP (Progressive Cavity Pumps)(where fluid level is below pump location). This helps in initial priming up of the pump. - [What is the meaning of AFC and AFD in drawings?](https://designandengg.com/question/what-is-the-meaning-of-afc-and-afd-in-drawings/answer/2372/) - AFC means "Approved for Construction" and AFD means "Approved for Design". AFC drawings are used for starting and doing Construction activities, whereas AFD drawings are used for starting actual design of detail engineering. - [What is the difference between Cetane Index and Cetane Number?](https://designandengg.com/question/what-is-the-difference-between-cetane-index-and-cetane-number/answer/2366/) - Cetane Number - experimental, CI - ASTM 4357 calculated from Sp Gravity, 10, 50, 90 % recovery temperature. Diesel index = (Aniline point in 0F * API)/100 Diesel Index = (Cetane Number – 10)/0.72 Aniline point is the lowest temperature at which the oil is completely miscible with an equal volume of aniline – high - [Why does a glass bottle crack when it is filled with water and frozen?](https://designandengg.com/question/why-does-a-glass-bottle-crack-when-it-is-filled-with-water-and-frozen/answer/2362/) - Water has lowest volume at Minus 4 deg C, below this it again expands and exerts pressure on the glass walls, which leads in crack on bottle. - [What is TSV or TRV and Where do we use it?](https://designandengg.com/question/what-is-tsv-or-trv-and-where-do-we-use-it/answer/2358/) - TSV or TRV (Thermal safety valve or Thermal Relief Valve) is used to take care of pressure build up due to thermal expansion. It is provided at places where a liquid can remain in blocked up state with no room for expansion due to temperature rise. - [What is the full form of CPI?](https://designandengg.com/question/what-is-the-full-form-of-cpi/answer/2354/) - CPI means Corrugated Plate Interceptor – Which is used in water treatment. - [Why the under ground lines should not be steam flushed?](https://designandengg.com/question/why-the-under-ground-lines-should-not-be-steam-flushed/answer/2352/) - Under ground lines have a protective coating of asphalt which will melt and spoil if subjected to high temperature. - [What is lost time accident?](https://designandengg.com/question/what-is-lost-time-accident/answer/2023/) - Should an injured person remain away as a result of accident for more than a day (excluding the day of accident and the day of reporting), it is treated as lost time accident. Example - Joe meets with an accident on Monday and goes home. He does not suffer - [What is zone-0, where is it in refinery?](https://designandengg.com/question/what-is-zone-0-where-is-it-in-refinery/answer/2019/) - As per BIS classification of hazardous area – zone zero is where explosive atmosphere is continuously present – like vapor space in tanks which are open to air and contain hydrocarbon or flammable material which for explosive mixture with air. - [Valve stem of a gate valve in flare header](https://designandengg.com/question/valve-stem-of-a-gate-valve-in-flare-header/answer/2015/) - Downwards since among most frequent failures in gate valve is falling down of gate. If stem is facing downwards, gate will remain intact. - [Suggestions for Reducing Equipment Loading](https://designandengg.com/question/suggestions-for-reducing-equipment-loading/answer/2012/) - The following guidelines may be helpful for reducing equipment loading. 1. If the dead loads exceed the allowable, • Ensure the piping system is adequately supported, • Remove unneeded supports; they may be the cause of the problem. 2. If the thermal loads exceed the allowable, • Check the design and operating temperatures. Consult the - [Hyd. test of FBE Spool](https://designandengg.com/question/hyd-test-of-fbe-spool/answer/1993/) - Greetings from designandengg.com, Dear user, For Cat D-Service fluid, hydrotest is not recommended due to FBE Coating may damage on account of high test pressure. Hence service test only carried out. In addition to this, before FBE coating bare CS pipe were hydro tested at shop. Thanks and regards, Customercare designandengg.com - [There is a steam piping with low pocket but without steam trap. What will be worst consequence?](https://designandengg.com/question/there-is-a-steam-piping-with-low-pocket-but-without-steam-trap-what-will-be-worst-consequence/answer/1954/) - There will be a build up of condensate to the point that a slug will be pushed by the steam flow. This slug of condensate will cause “water hammer” and could rip the piping apart. - [There is a power plant ANSI B31.1 & ANSI B31.3 scope break](https://designandengg.com/question/there-is-a-power-plant-ansi-b31-1-ansi-b31-3-scope-break/answer/1952/) - Based on my experience there were two cases. Case #1, B31.1 stopped at the Power Plant Unit block valves. Thus all piping inside the Power Plant was B31.1. Case #2, B31.1 stopped at the equipment (Boiler) isolation block valves and then all other piping was B31.3. This is normally the choice of the owner/operator/client. - [Why Stainless steel is not used in sour services?](https://designandengg.com/question/why-stainless-steel-is-not-used-in-sour-services/answer/1949/) - Stainless Steel is having austenitic, ferrite, & Martensitic. For highly chloride contents it is not preferred to use SS, due to highly corrosive in chloride environment. And DSS is combined properties of ferrite and martensitic SS, it is having good resistance to chloride cracking. - [What is FBE coating thickness?](https://designandengg.com/question/what-is-fbe-coating-thickness/answer/1931/) - Standard FBE coating thickness ranges between 250 to 500 microns (0.25 to 0.5mm). - [What does SER stand for?](https://designandengg.com/question/what-does-ser-stand-for/answer/1919/) - Sequential event recorder - [What is weep point?](https://designandengg.com/question/what-is-weep-point/answer/1918/) - Minimum vapor velocity that will provide a stable tray operation preventing liquid from passing through holes and bypassing overflow weirs and downcomers. - [What is the maximum height permissible for tanks as per OISD?](https://designandengg.com/question/what-is-the-maximum-height-permissible-for-tanks-as-per-oisd/answer/1917/) - One and half times of the diameter or 20 m whichever is less. - [What are FBE coating limitations?](https://designandengg.com/question/what-are-fbe-coating-limitations/answer/1877/) - FBE Coating limitations for piping are based on vendor recommendations. However each FBE coating vendor has their own setup for FBE coating for piping. Hence on account of this, each vendor has different limitations for piping configuration for FBE coating based on pipe size, weight of piping etc. Generally FBE coating straight pipe spool allowed - [Underground Lines Steam Flushing](https://designandengg.com/question/underground-lines-steam-flushing/answer/1870/) - Under ground lines have a protective coating of asphalt which will melt and spoil if subjected to high temperature. ## Categories - [Piping Engineering](https://designandengg.com/category/design-and-engineering/piping-engineering/) - [Design and Engineering](https://designandengg.com/category/design-and-engineering/) - [General](https://designandengg.com/category/general/) - [Mechanical](https://designandengg.com/category/mechanical/) - [Static](https://designandengg.com/category/static/) - [Mechanical Static](https://designandengg.com/category/mechanical-static/) - [Static Mechanical](https://designandengg.com/category/static-mechanical/) - [equipments](https://designandengg.com/category/equipments/) - 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[flare system](https://designandengg.com/category/flare-system/) - [Basics of flare system](https://designandengg.com/category/basics-of-flare-system/) - [Limitations of flare system](https://designandengg.com/category/limitations-of-flare-system/) - [Maintenace of flare system](https://designandengg.com/category/maintenace-of-flare-system/) - [components of flare system](https://designandengg.com/category/components-of-flare-system/) - [Poisson's ratio for Concrete Material](https://designandengg.com/category/poissons-ratio-for-concrete-material/) - [Poisson's ratio](https://designandengg.com/category/poissons-ratio/) - [Concrete Material](https://designandengg.com/category/concrete-material/) - [Common Material Poisson's Ratio](https://designandengg.com/category/common-material-poissons-ratio/) - [Gate Valve Design Features](https://designandengg.com/category/gate-valve-design-features/) - [Gate Valve Design](https://designandengg.com/category/gate-valve-design/) - [Gate Valve Standards](https://designandengg.com/category/gate-valve-standards/) - 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[Butterfly Valve Design](https://designandengg.com/category/butterfly-valve-design/) - [Wafer Butterfly valve](https://designandengg.com/category/wafer-butterfly-valve/) - [Flexible Lip Seat Design](https://designandengg.com/category/flexible-lip-seat-design/) - [Advantages of butterfly valves](https://designandengg.com/category/advantages-of-butterfly-valves/) - [Plug Valve Design Features](https://designandengg.com/category/plug-valve-design-features/) - [Plug Valve](https://designandengg.com/category/plug-valve/) - [Plug Valve Design](https://designandengg.com/category/plug-valve-design/) - [Fully Lined plug valves](https://designandengg.com/category/fully-lined-plug-valves/) - [Non lubricated plug valves](https://designandengg.com/category/non-lubricated-plug-valves/) - [lubricated plug valves](https://designandengg.com/category/lubricated-plug-valves/) - [Eccentric Plug valves](https://designandengg.com/category/eccentric-plug-valves/) - [Rotor Plug valve](https://designandengg.com/category/rotor-plug-valve/) - [Multiport plug valve](https://designandengg.com/category/multiport-plug-valve/) - [Check Valve Design Features](https://designandengg.com/category/check-valve-design-features/) - [Check Valve Design](https://designandengg.com/category/check-valve-design/) - [Wafer Check Valve](https://designandengg.com/category/wafer-check-valve/) - [lift check valves](https://designandengg.com/category/lift-check-valves/) - [swing check valve](https://designandengg.com/category/swing-check-valve/) - [Non-Slamming](https://designandengg.com/category/non-slamming/) - [Design of fire safe valves](https://designandengg.com/category/design-of-fire-safe-valves/) - [fire safe valves](https://designandengg.com/category/fire-safe-valves/) - [fire safe valve design](https://designandengg.com/category/fire-safe-valve-design/) - [Selection of fire safe valves](https://designandengg.com/category/selection-of-fire-safe-valves/) - [Selection of valves for flammable service](https://designandengg.com/category/selection-of-valves-for-flammable-service/) - [Class 1 Check valve](https://designandengg.com/category/class-1-check-valve/) - [Non Slam Check Valve](https://designandengg.com/category/non-slam-check-valve/) - [Introduction to Piping Isometrics](https://designandengg.com/category/introduction-to-piping-isometrics/) - [Piping Isometrics](https://designandengg.com/category/piping-isometrics/) - [Piping Layout](https://designandengg.com/category/piping-layout/) - [Introduction to Pipe Supports](https://designandengg.com/category/introduction-to-pipe-supports/) - [Pipe Supports](https://designandengg.com/category/pipe-supports/) - [Design of pipe supports](https://designandengg.com/category/design-of-pipe-supports/) - [Steam Trap Inspection and testing methods](https://designandengg.com/category/steam-trap-inspection-and-testing-methods/) - [Steam Trap Inspection](https://designandengg.com/category/steam-trap-inspection/) - [Steam Trap](https://designandengg.com/category/steam-trap/) - [Steam Trap testing](https://designandengg.com/category/steam-trap-testing/) - 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[PEP](https://designandengg.com/category/pep/) - [Perfluoroalkoxy](https://designandengg.com/category/perfluoroalkoxy/) - [PFA](https://designandengg.com/category/pfa/) - [Tefzel](https://designandengg.com/category/tefzel/) - [Polyvinyl Chloride](https://designandengg.com/category/polyvinyl-chloride/) - [PVC](https://designandengg.com/category/pvc/) - [CPVC](https://designandengg.com/category/cpvc/) - [Chlorinated Polyvinyl Chloride](https://designandengg.com/category/chlorinated-polyvinyl-chloride/) - [Polypropylene](https://designandengg.com/category/polypropylene/) - [PP](https://designandengg.com/category/pp/) - [Polyvinylidene fluoride](https://designandengg.com/category/polyvinylidene-fluoride/) - [PVDF](https://designandengg.com/category/pvdf/) - [EPDM](https://designandengg.com/category/epdm/) - [Viton](https://designandengg.com/category/viton/) - [Glass Reinforced polysulfone](https://designandengg.com/category/glass-reinforced-polysulfone/) - [GRP](https://designandengg.com/category/grp/) - 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[Gate Valve Design Features](https://designandengg.com/tag/gate-valve-design-features/) - [Building Insulation for Civil Engineering](https://designandengg.com/tag/building-insulation-for-civil-engineering/) - [Building Insulation](https://designandengg.com/tag/building-insulation/) - [Civil Insulation Materials](https://designandengg.com/tag/civil-insulation-materials/) - [Butterfly Valve Design Features](https://designandengg.com/tag/butterfly-valve-design-features/) - [Butterfly Valve](https://designandengg.com/tag/butterfly-valve/) - [Butterfly Valve Design](https://designandengg.com/tag/butterfly-valve-design/) - [Wafer Butterfly valve](https://designandengg.com/tag/wafer-butterfly-valve/) - [Flexible Lip Seat Design](https://designandengg.com/tag/flexible-lip-seat-design/) - [Advantages of butterfly valves](https://designandengg.com/tag/advantages-of-butterfly-valves/) - [Plug Valve Design](https://designandengg.com/tag/plug-valve-design/) - [Plug Valve Design features](https://designandengg.com/tag/plug-valve-design-features/) - 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