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standard bore for gate valves

standard bore for gate valves

standard bore for gate valves

(OP)
Hello,

Please consider this example:

I have a P&ID with a 2" gate valve. I have no equipment data sheet on this valve. It is not stated to be full port.

What i want to know is what is the valve area.

My question is :

Is there a standard bore size for gate valves? For example a 2" gate valve, will have a xxxxx " opening?

Many thanks,

jon

RE: standard bore for gate valves

jrwchem

To answer your question:  I don't think so.  However, it might be that for a certain manufacturer, a standard 2" gate valve would always have the same size opening.  

Two things to consider:  1)  Contact the specific manufacturer and ask; 2)  Next time you take the valve apart, measure the opening

Patricia Lougheed

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RE: standard bore for gate valves

jrwchem,

If you’re looking for the minimum port openings allowed, refer to the following standards:

For valves manufactured to API 600 (generally cast valves, flanged and butt-weld, like is made by Crane Valve)
API 600, Sect. 5.3.3.1, Table 4, Minimum Port Diameters.

For valves manufactured to ANSI/API 602 (generally small forged valves, threaded, socket-weld and flanged, like is made by Vogt)
ANSI/API 602, Sect. 5.2, Table 1, Minimum Diameter of Equivalent Flow Passageway.

NozzleTwister
Houston, Texas

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