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.
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 Adams, Henry C.
A light flap valve to keep out the cold in winter is also a desirable feature for the overflow pipe.
From Rural Hygiene by Ogden, Henry N. (Henry Neely)
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
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 Ogden, Henry N. (Henry Neely)
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
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.
