PSV orifice size 1

• Mar 26, 2022

1
• #2

The Obturator

Mechanical

Feb 22, 2010

666

GB

If you're discussing Pressure-relief valves to API-526 , then the size range is 1" x D x 2" to 8" x T x 10"

Outside of API-526, sizes made can range from 3/8" inlet up to 20" x 24" (in x out) depending on manufacturer, and may be limited by application.

Actual orifice can vary by manufacturer, The 20 x 24 from one maker can have an actual orifice area of approx. 138,000 mm2.

What concern do you have?


*** Per ISO-4126, the generic term
'Safety Valve' is used regardless of application or design ***

*** 'Pressure-relief Valve' is the equivalent ASME/API term ***

 

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• Mar 26, 2022

• #3

mk3223

Mechanical

Feb 4, 2006

1,488

US

By paper, the API-526 lists typical valve size for the different orifice designations. But, additional valve sizes may be available by different Manufacturers.

 

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• Mar 27, 2022

• Thread starter
• #4

er.chem123

Chemical

Mar 26, 2022

5

IN

Thank you for the reply.

 

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• Mar 27, 2022

• #5

pierreick

Chemical

Nov 20, 2005

1,526

TH

Hi,
Consider this handbook to support your query.
Good luck
Pierre

 

 https://files.engineering.com/getfile.aspx?folder=cdb59013-a0f9-4985-b2e4-0e88cfbe9479&file=Pentair_pressure_relief_valve_handbook.pdf

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• Mar 27, 2022

• Thread starter
• #6

er.chem123

Chemical

Mar 26, 2022

5

IN

Hi ,

Thank you for sharing.

Regards,

 

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