check valve

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check valve

A valve that permits fluids or gases to flow in just one direction. Check valves are used in infusion sets to prohibit backflow of fluids during intravenous therapy.
See also: valve
References in periodicals archive ?
The injector is mounted on the melt cylinder directly in front of the rear non-return valve.
My bet is that if the all the companies involved in molding spent their six-sigma budgets on improving the design of the non-return valve, the result would be a far more reliable device.
The injection unit is designed especially for processing of silicone, and features a cooled barrel, a special screw geometry with a disc-type spring loaded non-return valve and a quick change mechanism for screw and barrel, according to the brochure.
Full flow and full bore with a profile design seat arrangement, Exospring non-return valve is also self draining.
And Non-Return Valve Of Gvp Phase-II Ocp EMD value : INR 290 Document Purchase Start date : 18 Dec 2017 Document Purchase End date : 22 Dec 2017 Opening date : 25 Dec 2017
One of the most important details in injection molding is the non-return valve or check ring.
It consists of a special screw and barrel combination plus a non-return valve.
Unveiling QSO Quick Shut-off non-return valve that delivers both high flow and rapid material shutoff for part weight consistency.
Rubber Seal For Non-Return Valve 1/2 Inch Soft Seated Check Valve As Per Drg.
Youngstown, Ohio, to make and sell the Glycon QSO (quick-shutoff) non-return valve.