standard bore for gate valves

[jrwchem]

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

 

[vpl]

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

Please see FAQ731-376 for tips on how to make the best use of the Eng-Tips Forums.

 

[NozzleTwister]

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