A valve that allows a liquid to pass in one direction only. It has a flap or poppet device to prevent back-flow. They can be found on the old style windscreen washer where a plunger is pushed to operate it.
Another place to find one is on a boiler where the injectors force the water into it but the pressure must not be able to pass back along the supply pipe.
Another place to find one is on a boiler where the injectors force the water into it but the pressure must not be able to pass back along the supply pipe.
The water is mixed with the steam in the injector and passes through the supply pipe via the clack valve into the boiler.
by Le Macho September 7, 2007
Get the clack mug.When a skier on a ski lift clacks their skis together knocking snow off their skis in the hopes that the snow will fall on people below
by Psycho snowboarder January 7, 2011
Get the Clacking mug.Owen Dinicola: Bruh you see the set of meaty clacks on Timmy Farge?
Jack Rodgers: Ya but they're nothing compared to the set on Trey Brown.
Shoutout Mrs. Kirshembaum
Jack Rodgers: Ya but they're nothing compared to the set on Trey Brown.
Shoutout Mrs. Kirshembaum
by jjlee168 November 13, 2017
Get the meaty clacks mug.
by DKproductionss February 7, 2010
Get the Clack mug.by Rabboonie January 29, 2014
Get the Chacka mug.by Stephanie H. November 27, 2004
Get the Chack mug.