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.

...
Lees meer Lees minder

Filters

81 - 82 van 82 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
RS-stocknr. 138-5656
Fabrikantnummer340055
FabrikantSferaco
8,57 €
Each
Aantal stuks
Single 3/4 in BSP Female, 3/4 in BSP Male Brass 10 bar 3/4in BSP
RS-stocknr. 486-170
FabrikantRS PRO
8,19 €
Each
Aantal stuks
Single 3/8 in BSPP Brass 12 bar 3/8in BSPP
Related Products
Application : Industry, pneumatics, hydraulic, plumbing installationsOperating Temperature ...
Description:
Application : Industry, pneumatics, hydraulic, plumbing installationsOperating Temperature : -20゚C / +100゚C Operating pressure : see non-shock cold working pressure chart on data sheetThreads : ISO 228 parallel female by female threads Stem : NylonNBR 65 SH/PS seal on nylon ...
For heating, sanitary and compressed air systems, pumps ...
Description:
For heating, sanitary and compressed air systems, pumps and autoclavesBody in hot forged DZR brassThreading to BS2779Hostaform inner valveSpring in 18//8 AISI 302-304 stainless steelHydrostatic test pressures 30 bar/435psi (shell), 22 bar/315psi (seat)Compact design, allows flow in one direction only, ...
RS Pro Brand Screwed End Swing Check Valves ...
Description:
RS Pro Brand Screwed End Swing Check Valves that allow liquids to flow in only one direction. 1/2 - 3" (DN15 - DN80)W.P: 200 WOGW.T: -20°C - 200°C (-4°F - 392°F)Investment castingSocket weld (option)Thread type: ASME B1.20.1 (NPT), DIN 2999 ...
A compact stainless steel non return disc check ...
Description:
A compact stainless steel non return disc check valve designed for use with steam and hot condensate. These valves have a CE marking of PN25 / PN40. Connections are flanged (wafer type)Low pressure dropSimple and compact designHorizontal or vertical installation. ...