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.

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Omschrijving Prijs Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
RS-stocknr. 284-2727
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90,84 €
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FabrikantGeorg Fischer
101,55 €
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Single - PVC-U 16 bar 1 1/4in -
RS-stocknr. 917-1934
Fabrikantnummer445631
FabrikantValsteam ADCA
71,36 €
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- - Stainless Steel - 3/4in -
RS-stocknr. 510-3766
FabrikantRS PRO
43,39 €
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Single 1 in BSPT Bronze 20 bar 1in BSPT
RS-stocknr. 720-9305
FabrikantRS PRO
153,68 €
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Aantal stuks
Single - Stainless Steel 40 bar 50mm ANSI
RS-stocknr. 486-209
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9,84 €
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Aantal stuks
Single 1/2 in BSPP Brass 16 bar 1/2in BSP
RS-stocknr. 214-0611
Fabrikantnummer161561064
FabrikantGeorg Fischer
80,92 €
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Aantal stuks
Single - PVC-U 16 bar 1in -
RS-stocknr. 499-2688
FabrikantRS PRO
111,36 €
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Single 2 in BSP Stainless Steel 14 bar 2in BSP
RS-stocknr. 340-3317
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Single 1 in BSP Brass 16 bar 1in BSP
RS-stocknr. 794-8353
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12,55 €
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RS-stocknr. 794-8375
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Double 3/4 in BSP Female Brass 10 bar 3/4in BSP
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RS-stocknr. 138-5656
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Double 3/4 in BSP Female, 3/4 in BSP Male Brass 10 bar 3/4in BSP
RS-stocknr. 486-215
FabrikantRS PRO
12,95 €
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Single 3/4 in BSPP Brass 16 bar 3/4in BSP
RS-stocknr. 510-3750
FabrikantRS PRO
56,54 €
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Single 1-1/4 in BSPT Bronze 20 bar 1-1/4in BSPT
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43,59 €
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Single 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
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