Check Valves

Check valves prevent reverse flow of fluids and gases within a pipeline system. They are designed to allow fluid to flow one way through the pipeline. Due to the simple design, check valves generally operate without automation or human interaction and instead rely on the flow velocity of the fluid to open and close.

How do they work?

Check valves are flow sensitive and rely on the line fluid to open and close. The internal disc allows flow to pass forward, which opens the valve. The disc begins closing the valve as forward flow decreases or is reversed, depends on the design. Construction is normally simple with only a few components such as the body, seat, disc and cover.

Check Valve types

There are several types of check valves for just about any application. Some of the more popular types include:
● Ball
● Dual plate
● Double door
● Spring assisted inline
● Nozzle
● Piston or lift
● swing checks

As with other types of valves, speciality check valves can be found for special applications.


Check valves are found in just about any type of facility from industrial plants and homes.

...
Read more Read less

Filters

Viewing 81 - 83 of 83 products
Results per page
Description Price Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
RS Stock No. 365-6707
Mfr. Part No.222300
$386.94
Each
units
Single 1/2 in BSPP Bronze 3.6 bar 1/2in BSPP
RS Stock No. 214-0611
Mfr. Part No.161561064
$174.20
Each
units
Single - PVC-U 16 bar 1in -
RS Stock No. 365-6690
Mfr. Part No.293300
$243.39
Each
units
Single 1 in BSPP Bronze 14 bar 1in BSPP
Related Products
Non-return or check valves which allow flow in ...
Description:
Non-return or check valves which allow flow in one direction only. Application : Industry, pneumatics, hydraulic, plumbing installations. Operating Temperature : +0゚C / +90゚C Operating pressure : PN12 1/2' to 1’’, PN10 1.1/4’’ to 2’’, PN8 2.1/2’’ to 4’’Threads : ...
Application : Industry, pneumatics, hydraulic, plumbing installations. Operating ...
Description:
Application : Industry, pneumatics, hydraulic, plumbing installations. Operating Temperature : -20゚C / +100゚C Operating pressure : see non-shock cold working pressure chart on data sheet. Threads : ISO 228 parallel female by female threads Stem : NylonNBR 65 SH/PS seal ...
For heating, sanitary and compressed air systems, pumps ...
Description:
For heating, sanitary and compressed air systems, pumps and autoclaves. Body in hot forged DZR brass. Threading to BS2779Hostaform inner valve. Spring in 18//8 AISI 302-304 stainless steel. Hydrostatic test pressures 30 bar/435psi (shell), 22 bar/315psi (seat)Compact design, allows flow ...
Used to detect and inspect the flow of ...
Description:
Used to detect and inspect the flow of individual fluids, blocked valves or strainers or leakage of live steam through steam traps. Inspect colour. Identify vapour leakage. Detect blocked flow. Assess correct flow indication.