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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Description Prix Type Connection Body Material Maximum Working Pressure Thread Size Thread Standard
N° de stock RS 486-182
MarqueRS PRO
53,34 €
Each
Unité
Single 2 in BSPP Brass 16 bar 2in BSP
N° de stock RS 284-2711
MarqueRS PRO
84,50 €
Each
Unité
Single 3/4 in BSPT Bronze 25 bar 3/4in BSPT
N° de stock RS 720-9336
MarqueRS PRO
79,76 €
Each
Unité
Sight Glass 1/2 in BSP Brass 12 bar 1/2in BSP
N° de stock RS 720-9305
MarqueRS PRO
156,02 €
Each
Unité
Single - Stainless Steel 40 bar 50mm ANSI
N° de stock RS 458-6788
Référence fabricant4890 13 13
MarqueLegris
57,80 €
Each
Unité
Single 1/4 in G Stainless Steel 40 bar 1/4in G
N° de stock RS 458-6794
Référence fabricant4890 17 17
MarqueLegris
89,02 €
Each
Unité
Single 3/8 in G Stainless Steel 40 bar 3/8in G
N° de stock RS 754-987
Référence fabricant15DCV
MarqueJG Speedfit
15,45 €
Each
Unité
Double - POM 12 bar - -
N° de stock RS 367-9441
Référence fabricant222000
MarqueSpirax Sarco
126,24 €
Each
Unité
Sight Glass 1/2 in BSPP Brass 3.5 bar 1/2in BSPP
N° de stock RS 794-8413
Référence fabricantFLOW235909
55,63 €
Each
Unité
Single 2 in BSP Female Brass 10 bar 2in BSP
N° de stock RS 365-6690
Référence fabricant293300
MarqueSpirax Sarco
129,33 €
Each
Unité
Single 1 in BSPP Bronze 14 bar 1in BSPP
N° de stock RS 917-1934
Référence fabricant445631
69,49 €
Each
Unité
- - Stainless Steel - 3/4in -
N° de stock RS 365-6707
Référence fabricant222300
MarqueSpirax Sarco
205,60 €
Each
Unité
Single 1/2 in BSPP Bronze 3.6 bar 1/2in BSPP
N° de stock RS 794-8362
Référence fabricantFLOW230004
31,18 €
Each
Unité
Double 28 mm BSP Female Brass 10 bar 28mm BSP
N° de stock RS 365-6684
Référence fabricant293200
MarqueSpirax Sarco
88,60 €
Each
Unité
Single 3/4 in BSPP Bronze 14 bar 3/4in BSPP
N° de stock RS 178-0060
Référence fabricant2224110
MarqueWatts
5,70 €
Each
Unité
- 3/4 in Brass 10 bar - -
N° de stock RS 896-8355
Référence fabricant1/4SCV
MarqueJohn Guest
67,47 €
1 Bag of 10
Sachet(s)
Single 1/4 in Push Fit Acetal Copolymer 10 bar - -
N° de stock RS 458-6801
Référence fabricant4890 21 21
MarqueLegris
85,92 €
Each
Unité
Single 1/2 in G Stainless Steel 40 bar 1/2in G
N° de stock RS 917-1943
Référence fabricant445786
92,55 €
Each
Unité
Sight Glass 3/4 in Rp Female Brass 12 bar 3/4in BSP
N° de stock RS 794-8375
Référence fabricantFLOW230006
21,35 €
Each
Unité
Double 3/4 in BSP Female Brass 10 bar 3/4in BSP
N° de stock RS 214-0655
Référence fabricant161561067
174,29 €
Each
Unité
Single - PVC-U 16 bar - -