Archives: Answers

Answer

Suggestions for Reducing Equipment Loading

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 process engineer to obtain correct or reasonable valuRead More…

Hyd. test of FBE Spool

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.comRead More…

There is a power plant ANSI B31.1 & ANSI B31.3 scope break

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.Read More…

Why Stainless steel is not used in sour services?

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.Read More…

What is weep point?

Minimum vapor velocity that will provide a stable tray operation preventing liquid from passing through holes and bypassing overflow weirs and downcomers.Read More…