Check valve definition

Check valve or “anti-drain valve” means a valve located under a sprinkler head, or other location in the irrigation system, to hold water in the system to prevent drainage from sprinkler heads when the sprinkler is off.
Check valve means a non-return valve that prevents reverse flow in the vehicle fuel line.
Check valve means a component that is internal to

Examples of Check valve in a sentence

  • Defective float switch Replace float switch with new float switch Check valve installed with no air bleed hole in pipe or pump An air bleed hole of 1/8” (3.2 mm) needs to be drilled in the discharge pipe below the check valve and pit cover Check valve is stuck or installed upside down Reverse or replace check valve.

  • Check valve: A check valve will need to be installed inside your service access box.

  • AISI 316/ BS EN 1561 Shaft and coupling AISI 316, AISI 431, AISI 420 Shaft sleeve AISI 431, gunmetal, CC 491k Bearing ▇▇▇▇, Guide bearing AISI 316, CC 480k, NBR Pump delivery and Housing BS EN 1561 Check valve ( None Return Valve ) BS EN 1561 Inlet strainer AISI 304 Screw, stud, nut, washer..


More Definitions of Check valve

Check valve means a valve, which allows flow in only one direction.
Check valve means a valve that limits flow to one direction. A single check valve is not a backflow prevention device. That requires a double check assembly that can be tested for positive closing.
Check valve means a self-closing device which is designed to permit the flow of fluids in one direction and to close if there is a reversal of flow.
Check valve or “anti-drain valve” means a valve used in a pipeline or emission device that holds water in the system to prevent drainage from emission devices when the system is off.
Check valve means a device which permits the flow of gas in one direction and prevents the flow of gas in the opposite direction;
Check valve means a component that is internal to a spray sprinkler body and prevents system drainage during periods of nonoperation.
Check valve means a “one-way” valve that prevents water from flowing backward though it. Spring loaded check valves are sometimes installed inside or at the inlet of sprinkler heads. The check prevents low head drainage.