check valve


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check valve

n
(Mechanical Engineering) a valve that closes by fluid pressure to prevent return flow. Also called: nonreturn valve
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

check′ valve`


n.
a valve permitting liquids or gases to flow in one direction only.
[1875–80]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Translations
valvola di ritegno
References in periodicals archive ?
With a sliding-ring check valve, the ring does not rotate with the screw during plastication or screw recovery.
Garden Grove, CA, May 02, 2014 --(PR.com)-- Saint-Gobain Seals' OmniSeal[R] spring-energized anti-blowout seal has been qualified as a static seal in rocket engine check valves for the aerospace industry.
has introduced a new line of barbed check valves as an extension to its SCV Series of check valves.
Shipham Valves, a subsidiary of Wartsila, has completed the development programme for a new range of composite single plate wafer check valves, which will be introduced to the market place at the Valve World Exhibition to be held in Dusseldorf at the end of November.
If the thumping noise is keeping you up at night, replace it with a quieter check valve. One choice is the Campbell Quietsump No.
* Both the check valve and relief valve functions are controlled by the double silicone diaphragm in the middle of the assembly and the 2 mating outer components (polycerbonate), which hold and center the diaphragm
Designed for long service life under all operational conditions, features of the 94P Series include 316 stainless steel construction and carbide check valve balls to provide an advanced level of corrosion resistance allied to reduced maintenance through the use of abrasion resistant ceramic plungers.
Thermoplastic manifold type check valve is designed to prevent reverse flow while simplifying installation of multiple check valves.
A key attribute of the diaphragm is its ability to provide extremely low cracking pressure compared to other check valve types, like umbrella, duckbill .ind lift check valves.
Waste lines from a Sewage ejector or sump pump use a check valve to stop wastewater from flowing back into the basin.