Shutoff Fuel Gas Valves

[SILVIALE]

Hello,

I'm new on valves design.

I need to specify three ESD valve, to make a double block and vent configuration for a fuel gas line.

I’m not sure how to size the body and how to determine whether i should use a ball or a butterfly valve?

Is there a standard can guide me in the whole design process?

How do I get de deltaP i need to design? I’ve read son articles and says I should design based on the max pressure in the system as a deltaP, I’m not sure.

Please help,

Regards.

 

[itsmoked]

I suggest you find the UL or Fire code that defines what's needed. That could save you a bunch of time.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[kinser06]

Typically all emergency valves would be ball valves as they provide "bubble tight" sealing qualities, and typically a fire safe valve. I personally use WOM valves. Max DP would normally be your MAOP of the line.