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What do some terms related to safety valves (in English) mean?

2009-03-16View Original

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As the title suggests, what are the Chinese meanings of the following items? I would appreciate some guidance from those who are more experienced. Cold Diff. Test Pressure Pcd Blowdown Spring-/weight-loaded
Reply #22009-03-16
Blowdown opening/closing pressure difference; Spring-/weight-loaded: direct spring load/hanging weight load. I don’t know anything else; as for what I do know, I’m not sure if it’s correct, so just use this as a reference
Reply #32009-03-16
Cold Diff. Test Pressure Pcd Opening/Closing Pressure Difference Blowdown Spring-/weight-loaded safety valve
Reply #42009-03-16
Cold Diff. Test Pressure Pcd: Cold differential test pressure. Blowdown: Used in safety valves to facilitate discharge. Spring-/weight-loaded: Spring-type/lever-type; handshake: Technical support

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