flap valve

American  

noun

1. clack valve.

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Etymology

Origin of flap valve

First recorded in 1865–70

Example Sentences

See Examples For:

flap valve

Refrigerator waste pipes, except in tenement houses, and all safe-waste pipes, must have brass flap valve on the lower ends.

From Elements of Plumbing by Samuel Edward Dibble

Good engines are provided with a plug or flap valve.

From Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines by R. E. Mathot

Schemes have been suggested in which it was proposed to utilise a flap valve on the outlet so as to render the discharge of the sewage automatic.

From The Sewerage of Sea Coast Towns by Henry C. Adams

From the bottom of the condenser a short pipe leads to the air pump J, and in this pipe there is a flap valve, called the foot valve, opening towards the air pump.

From A Catechism of the Steam Engine by John Bourne, C.E.

The churned-up soil is removed by a sand pump, which is a hollow tube with a flap valve at the lower end opening inwards and a hook on the upper end.

From Rural Hygiene by Henry N. (Henry Neely) Ogden