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Recent content by potus101985
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SPExSPE
Hi stiaf, Query on your statement, "A DBB valve has 2 seating surfaces to have seat sealing against pressure from both upstream and downstram the valve (SPE X SPE). " For a valve to have a DBB function, is it a requirement to have both pressures on upstream and downstream? What if pressure on...- potus101985
- Post #10
- Forum: Valve engineering
