TERMIUM Plus®

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DOUBLE BLOCK BLEED [1 record]

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Filter results by subject field

Alphabetical list of terms

Record 1 2002-09-10

English

Subject field(s)
  • Closing Devices and Nozzles (Mechanical Components)
DEF

A valve arrangement in which a normally open vent valve just downstream from an automatic safety shutoff valve (SSOV) allows any gas that leaks past the SSOV during shutdown to escape to the outside atmosphere. A second SSOV just downstream from the vent valve blocks any gas which is not vented. When the SSOV's are open, the vent valve is closed.

Key term(s)
  • double block and bleed

French

Domaine(s)
  • Obturateurs et buses (Composants mécaniques)

Spanish

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