flap valve
Americannoun
Etymology
Origin of flap valve
First recorded in 1865–70
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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 Dibble, Samuel Edward
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 Bourne, John, C.E.
First of all, a flap valve under such conditions would not remain watertight, unless it were attended to almost every day, which is, of course, impracticable when the outlet is below water.
From The Sewerage of Sea Coast Towns by Adams, Henry C.
It consists of a cylindrical chamber, a, ending in a narrower tube, c, which forms the seating for a flap valve, d, to which the hammer or clapper, e, is fixed.
From Scientific American Supplement, No. 458, October 11, 1884 by Various
A flap valve is provided between the two chambers to prevent the gasoline in the lower one from being sucked back into the upper one.
From Aviation Engines Design?Construction?Operation and Repair by Pag?, Victor Wilfred
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
