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mostafaalkholy
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Join Date: Nov 2008
Posts: 72

relief valve size

12/27/2008 4:28 AM

after calculation of relief valve effective orifice area

how should i know the size of the inlet and outlet falnges of the valve
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ducon
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Location: Hop around Toronto, New York & Karachi
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#1

Re: relief valve size

12/28/2008 2:58 AM

after calculation of relief valve effective orifice area - since you know the Cv then check technical spec.sheet of Relief Valve(s) to match that Cv. You will find the inlet / outlet flange size. each Manufacturer may/may not have the same size. Suppose one has a 1" x 2" or 1" x 1.5" by another , both will work if they they have the same Cv.

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mostafaalkholy
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Join Date: Nov 2008
Posts: 72
#2
In reply to #1

Re: relief valve size

12/28/2008 4:23 AM

from where should i know cv in my system to compare with the manufacturer one
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ducon
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Location: Hop around Toronto, New York & Karachi
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#3
In reply to #2

Re: relief valve size

12/28/2008 2:43 PM

You've already calculated the orifice size. Check that with tech.spec sheet of the/any relief valve that will tell you the size inlet/outlet & flange.

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Anonymous Poster
#4

Re: relief valve size

12/28/2008 6:34 PM

As per API RP 526
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