suction valve

British  

noun

1. Also called: foot valve.  a nonreturn valve in a pump suction to prevent the pump draining or depriming when not in service

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Example Sentences

A foot valve is virtually a second suction valve placed at the bottom or foot of the suction pipe.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Thus, while the suction valve is falling to its seat, the water already in the pump passes back into the suction pipe, and similarly, while the delivery valve is closing, the delivery water passes back.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

It is a sluggish swimmer and is provided with an exterior suction valve on its ventral surface immediately back of the gill opening.

From The Bontoc Igorot by Jenks, Albert Ernest

Determination of the Resistance to Suction and Exhaust.—Influence of the tension of the spring of the suction valve and of the section of the pipe.

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 Mathot, R. E.

When the upper chamber is filled at the proper height the float rises to the top, this closing the suction valve and opening the atmospheric valve.

From Aviation Engines Design?Construction?Operation and Repair by Pag?, Victor Wilfred