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siddiquiee
Participant

Join Date: Apr 2010
Posts: 3

Pressure Control Valve

06/18/2013 8:49 PM

Hi,

Another process line in Upstream of pressure control valve and before this process line

Pressure transmitter is installed, my question is how do we know the pressure of installed pressure control valve whereas upstream of control valve is having another process line.

Please explain me...

Regards,

Shahid
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: Pressure Control Valve

06/19/2013 4:08 AM

The only real way to know for certain is to have the valve out of the line and bench-test it using a deadweight pressure tester. Of course, documenting the test on some form of setting record means that the valve doesn't have to come out of the line again.

A wise thing would be to receive a set-up record with the purchase of the valve in the first instance and file it in an appropriate place; one would then have a high level of confidence that the setting is correct for the application.

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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#2

Re: Pressure Control Valve

06/19/2013 10:58 AM

Put a gauge downstream of the valve.

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GameJudge
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Join Date: Oct 2009
Posts: 176
Good Answers: 4
#3

Re: Pressure Control Valve

06/20/2013 9:10 AM

Can you scan in a sketch of this? Worth a thousand words.
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vargaalex
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Join Date: Dec 2010
Location: Tulsa, OK
Posts: 184
Good Answers: 2
#4

Re: Pressure Control Valve

06/20/2013 9:11 AM

I agree with Lyn, put a pressure gauge.
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