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 178-0060
Référence fabricant2224110
MarqueWatts
5,70 €
Each
Unité
- 3/4 in Brass 10 bar - -
N° de stock RS 794-8404
Référence fabricantFLOW235005
12,47 €
Each
Unité
Single 3/4 in BSP Female Brass 10 bar 3/4in BSP
N° de stock RS 794-8378
Référence fabricantFLOW230907
37,71 €
Each
Unité
Double 1 in BSP Female Brass 10 bar 1in BSP
N° de stock RS 794-8353
Référence fabricantFIBV246908
12,55 €
Each
Unité
Double 1/8 in BSP Brass 6 bar 1/8in BSP
N° de stock RS 366-4657
Référence fabricant223300
MarqueSpirax Sarco
222,28 €
Each
Unité
Single 3/4 in BSPP Bronze 3.6 bar 3/4in BSPP
N° de stock RS 794-8366
Référence fabricantFLOW230005
10,31 €
Each
Unité
Double 1/2 in BSP Female Brass 10 bar 1/2in BSP
N° de stock RS 214-0627
Référence fabricant161561065
106,63 €
Each
Unité
Single - PVC-U 16 bar 1 1/4in -
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 214-0598
Référence fabricant161561062
66,57 €
Each
Unité
Single - PVC-U 16 bar 1/2in -
N° de stock RS 917-1934
Référence fabricant445631
69,49 €
Each
Unité
- - Stainless Steel - 3/4in -
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 794-8388
Référence fabricantFLOW235001
7,10 €
Each
Unité
Single 15 mm BSP Female Brass 10 bar 15mm BSP
N° de stock RS 794-8397
Référence fabricantFLOW235002
11,10 €
Each
Unité
Single 22 mm BSP Female Brass 10 bar 22mm BSP
N° de stock RS 214-0655
Référence fabricant161561067
174,29 €
Each
Unité
Single - PVC-U 16 bar - -
N° de stock RS 214-0605
Référence fabricant161561063
78,98 €
Each
Unité
Single 3/4 in Socket PVC-U 16 bar 3/4in -
N° de stock RS 794-8381
Référence fabricantFLOW230009
87,84 €
Each
Unité
Double 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
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 794-8410
Référence fabricantFLOW235908
43,59 €
Each
Unité
Single 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
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 794-8356
Référence fabricantFLOW230001
9,41 €
Each
Unité
Double 15 mm BSP Female Brass 10 bar 15mm BSP