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Sealability against natural gas

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ADNPD

ADNPD

Mechanical
Joined
Jun 19, 2003
Messages
16
Location
CA
Dear All,

I was presented with a question concerning valve sealability against natural gas. The question was, in a high pressure full port complete flow channel would a wedge gate valve be able to provide a good enough seal? I thought that if an elasomeric sealing element were placed into either the seat or the wedge it would provide a sufficient seal. What do you think?

ADNPD
 
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By "good enough seal" I assume you mean "bubble-tight". Yes, you can get this with a soft-seated wedge gate valve. Some manufacturers put the soft seat in the seat ring and others in the wedge.
 
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