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. 720-9295
FabrikantRS PRO
115,65 €
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Aantal stuks
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49,89 €
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Single 1-1/4 in BSPT Bronze 20 bar 1-1/4in BSPT
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Fabrikantnummer4890 13 13
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57,80 €
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Aantal stuks
Single 1/4 in G Stainless Steel 40 bar 1/4in G
RS-stocknr. 458-6794
Fabrikantnummer4890 17 17
FabrikantLegris
89,02 €
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Single 3/8 in G Stainless Steel 40 bar 3/8in G
RS-stocknr. 754-987
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RS-stocknr. 367-9441
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126,24 €
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Sight Glass 1/2 in BSPP Brass 3.5 bar 1/2in BSPP
RS-stocknr. 794-8356
FabrikantnummerFLOW230001
9,41 €
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Double 15 mm BSP Female Brass 10 bar 15mm BSP
RS-stocknr. 794-8362
FabrikantnummerFLOW230004
31,18 €
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Double 28 mm BSP Female Brass 10 bar 28mm BSP
RS-stocknr. 794-8404
FabrikantnummerFLOW235005
12,47 €
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Aantal stuks
Single 3/4 in BSP Female Brass 10 bar 3/4in BSP
RS-stocknr. 366-4657
Fabrikantnummer223300
FabrikantSpirax Sarco
222,28 €
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Aantal stuks
Single 3/4 in BSPP Bronze 3.6 bar 3/4in BSPP
RS-stocknr. 794-8366
FabrikantnummerFLOW230005
10,31 €
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Double 1/2 in BSP Female Brass 10 bar 1/2in BSP
RS-stocknr. 794-8410
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43,59 €
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Aantal stuks
Single 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
RS-stocknr. 365-6678
Fabrikantnummer293100
FabrikantSpirax Sarco
56,72 €
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Aantal stuks
Single 1/2 in BSPP Bronze 14 bar 1/2in BSPP
RS-stocknr. 794-8388
FabrikantnummerFLOW235001
7,10 €
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Aantal stuks
Single 15 mm BSP Female Brass 10 bar 15mm BSP
RS-stocknr. 138-5656
Fabrikantnummer340055
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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. 794-8381
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87,84 €
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Aantal stuks
Double 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
RS-stocknr. 794-8413
FabrikantnummerFLOW235909
55,63 €
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Aantal stuks
Single 2 in BSP Female Brass 10 bar 2in BSP
RS-stocknr. 214-0611
Fabrikantnummer161561064
FabrikantGeorg Fischer
84,97 €
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Aantal stuks
Single - PVC-U 16 bar 1in -
RS-stocknr. 794-8394
FabrikantnummerFLOW235004
9,94 €
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Aantal stuks
Single 1/2 in BSP Female Brass 10 bar 1/2in BSP
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