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. 486-205
FabrikantRS PRO
19,81 €
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Aantal stuks
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50,98 €
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Single 3/4 in BSP Stainless Steel 14 bar 3/4in BSP
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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. 367-9441
Fabrikantnummer222000
FabrikantSpirax Sarco
126,24 €
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RS-stocknr. 754-987
Fabrikantnummer15DCV
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15,45 €
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Double - POM 12 bar - -
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
FabrikantnummerFLOW230009
87,84 €
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Aantal stuks
Double 1-1/2 in BSP Female Brass 10 bar 1-1/2in BSP
RS-stocknr. 917-1934
Fabrikantnummer445631
FabrikantValsteam ADCA
69,49 €
Each
Aantal stuks
- - Stainless Steel - 3/4in -
RS-stocknr. 794-8384
FabrikantnummerFLOW230910
119,39 €
Each
Aantal stuks
Double 2 in BSP Female Brass 10 bar 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. 458-6801
Fabrikantnummer4890 21 21
FabrikantLegris
85,92 €
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Aantal stuks
Single 1/2 in G Stainless Steel 40 bar 1/2in G
RS-stocknr. 365-6690
Fabrikantnummer293300
FabrikantSpirax Sarco
129,33 €
Each
Aantal stuks
Single 1 in BSPP Bronze 14 bar 1in BSPP
RS-stocknr. 794-8353
FabrikantnummerFIBV246908
12,55 €
Each
Aantal stuks
Double 1/8 in BSP Brass 6 bar 1/8in BSP
RS-stocknr. 794-8378
FabrikantnummerFLOW230907
37,71 €
Each
Aantal stuks
Double 1 in BSP Female Brass 10 bar 1in BSP
RS-stocknr. 366-4657
Fabrikantnummer223300
FabrikantSpirax Sarco
222,28 €
Each
Aantal stuks
Single 3/4 in BSPP Bronze 3.6 bar 3/4in BSPP
RS-stocknr. 214-0611
Fabrikantnummer161561064
FabrikantGeorg Fischer
84,97 €
Each
Aantal stuks
Single - PVC-U 16 bar 1in -
RS-stocknr. 214-0649
Fabrikantnummer161561066
FabrikantGeorg Fischer
129,97 €
Each
Aantal stuks
Single - PVC-U 16 bar - -
RS-stocknr. 365-6707
Fabrikantnummer222300
FabrikantSpirax Sarco
205,60 €
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Aantal stuks
Single 1/2 in BSPP Bronze 3.6 bar 1/2in BSPP
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