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Anonymous Poster #1

Needle Valve or 2-Way Manifold

05/08/2013 7:48 PM

Hi All,

What is preferred for pressure gauges a needle valve or a 2-way manifold? Is a manifold an over kill for a pressure gauge which in my case, is an accessory to a Pressure Transmitter measuring the same pressure?
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lyn
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Join Date: Oct 2008
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#1

Re: Needle Valve or 2-way Manifold

05/08/2013 8:11 PM

What color is the PT, red, yellow, blue, orange or black?
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Carl_E
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Posts: 335
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#2

Re: Needle Valve or 2-way Manifold

05/08/2013 8:26 PM

Both will isolate the pressure instrument. But gauge valves include multi-port and block and bleed styles suitable for calibration and venting. Does the installation warrant cal checks or venting?
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Anonymous Poster #1
#3
In reply to #2

Re: Needle Valve or 2-way Manifold

05/08/2013 9:06 PM

They will require calibration at times.
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PWSlack
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#4
In reply to #3

Re: Needle Valve or 2-way Manifold

05/09/2013 7:34 AM

Then the question is: do they need to be removed for calibration or is the procedure to be carried out in-situ? The answer determines the configuration of valves, manifolds, etc., that will be needed to accomplish the act.

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Steve Batey
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Join Date: Mar 2013
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#5

Re: Needle Valve or 2-Way Manifold

06/23/2013 7:02 PM

Use a trumpet (manifold) valve.
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Anonymous Poster (1); Carl_E (1); lyn (1); PWSlack (1); Steve Batey (1)

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