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. 896-8355
Fabrikantnummer1/4SCV
FabrikantJohn Guest
67,47 €
1 Bag of 10
Bag(s)
Single 1/4 in Push Fit Acetal Copolymer 10 bar - -
RS-stocknr. 794-8381
FabrikantnummerFLOW230009
87,84 €
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Double 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
RS-stocknr. 917-1934
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69,49 €
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- - Stainless Steel - 3/4in -
RS-stocknr. 214-0649
Fabrikantnummer161561066
FabrikantGeorg Fischer
129,97 €
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Aantal stuks
Single - PVC-U 16 bar - -
RS-stocknr. 365-6690
Fabrikantnummer293300
FabrikantSpirax Sarco
129,33 €
Each
Aantal stuks
Single 1 in BSPP Bronze 14 bar 1in BSPP
RS-stocknr. 138-5656
Fabrikantnummer340055
FabrikantSferaco
8,57 €
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Aantal stuks
Single 3/4 in BSP Female, 3/4 in BSP Male Brass 10 bar 3/4in BSP
RS-stocknr. 794-8388
FabrikantnummerFLOW235001
7,10 €
Each
Aantal stuks
Single 15 mm BSP Female Brass 10 bar 15mm BSP
RS-stocknr. 365-6678
Fabrikantnummer293100
FabrikantSpirax Sarco
56,72 €
Each
Aantal stuks
Single 1/2 in BSPP Bronze 14 bar 1/2in BSPP
RS-stocknr. 794-8362
FabrikantnummerFLOW230004
31,18 €
Each
Aantal stuks
Double 28 mm BSP Female Brass 10 bar 28mm BSP
RS-stocknr. 794-8404
FabrikantnummerFLOW235005
12,47 €
Each
Aantal stuks
Single 3/4 in BSP Female Brass 10 bar 3/4in BSP
RS-stocknr. 794-8366
FabrikantnummerFLOW230005
10,31 €
Each
Aantal stuks
Double 1/2 in BSP Female Brass 10 bar 1/2in BSP
RS-stocknr. 214-0598
Fabrikantnummer161561062
FabrikantGeorg Fischer
66,57 €
Each
Aantal stuks
Single - PVC-U 16 bar 1/2in -
RS-stocknr. 214-0605
Fabrikantnummer161561063
FabrikantGeorg Fischer
78,98 €
Each
Aantal stuks
Single 3/4 in Socket PVC-U 16 bar 3/4in -
RS-stocknr. 365-6707
Fabrikantnummer222300
FabrikantSpirax Sarco
205,60 €
Each
Aantal stuks
Single 1/2 in BSPP Bronze 3.6 bar 1/2in BSPP
RS-stocknr. 214-0655
Fabrikantnummer161561067
FabrikantGeorg Fischer
174,29 €
Each
Aantal stuks
Single - PVC-U 16 bar - -
RS-stocknr. 794-8413
FabrikantnummerFLOW235909
55,63 €
Each
Aantal stuks
Single 2 in BSP Female Brass 10 bar 2in BSP
RS-stocknr. 794-8356
FabrikantnummerFLOW230001
9,41 €
Each
Aantal stuks
Double 15 mm BSP Female Brass 10 bar 15mm BSP
RS-stocknr. 794-8353
FabrikantnummerFIBV246908
12,55 €
Each
Aantal stuks
Double 1/8 in BSP Brass 6 bar 1/8in BSP
RS-stocknr. 794-8350
FabrikantnummerFLOW230002
9,41 €
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Aantal stuks
Double 15 mm BSP Female Nickel Plated Brass 10 bar 15mm BSP
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