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escape valve

DEFINITIONS OF: escape valve

1

n a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level

Synonyms:
escape, escape cock, relief valve, safety valve
Type of:
regulator
any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc.
valve
control consisting of a mechanical device for controlling the flow of a fluid
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