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flap valve

Syllabification: flap valve
(also flapper valve)

Definition of flap valve in English:

noun

A valve opened and closed by a plate hinged at one side.
Example sentences
  • Its only moving parts are a spring-loaded ‘clack’ valve and a non-return flap valve.
  • There the nozzle moves a flapper valve that seals the system out of the way.
  • The divers were expected to start work tonight on installing a section of pipe and a flap valve to an existing culvert.

Definition of flap valve in:

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