Safety/Relief Valve Discharge Piping
Safety/Relief Valve Discharge Piping
(OP)
Other than structural, what criteria should be used in designing Safety/Relief Valve Discharge piping? For example:
Flow velocity, pressure drop, quality (if two phase),etc.
Thanks
Flow velocity, pressure drop, quality (if two phase),etc.
Thanks





RE: Safety/Relief Valve Discharge Piping
Per ISO, only the term Safety Valve is used regardless of application or design.
RE: Safety/Relief Valve Discharge Piping
Weep holes to drain accumulated liquids.
I'm sure API 521 lists these.
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: Safety/Relief Valve Discharge Piping
From a structural perspective, don't overlook acoustic induced vibration (AIV) risks which are associated with tailpipes connected to a collection header. Use the simple equation in API 521 to calc the sound power level. This sound power level is a screening criterion for assessing whether there's a risk of AIV failure at the point where the tailpipe connects to the header. Tailpipes < 10" diameter are potentially exposed to this failure mechanism.
RE: Safety/Relief Valve Discharge Piping
RE: Safety/Relief Valve Discharge Piping
API 520 Part 2 breaks down the guidelines for the design of proper discharge line design.
There is far too much information there for me to adequately break it down in a forum post. However, after you review the document you can feel free to come back and ask clarifying questions.