PRV Selection 1

[sollapalooza]

Hello eng-tips!

May I ask what is the correct/normal practice in selecting PSV/PRV? All I know from API 520 Part 1 is:

1. PSV is for gas service,
2. PRV is for liquid service.
3. Non-flowing pilot PRV is recommended if there is a possibility of hydrate formation/icing in the outlet.

I am looking for the suitable application for each of:
1. conventional
1.1 PRV
1.2 PSV
2. bellow type
2.1 PRV
2.2 PSV
3. Pilot:
3.1 Pop, non-flowing
3.2 Pop, flowing
3.3 Modulating, non-flowing
3.4 Modulating, flowing

Thank you in advance.

 

[LittleInch]

Try reading this - other manuals are available from other vendors - to explain this much better than I can in a single post

http://www.flotechinc.com/products/pressure-relief-valve-engineering-handbook/

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[sollapalooza]

Thanks! I will try to read it.

 

[vladrath]

You need to be much more specific, you could write a book addressing the questions you asked.