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. 499-2666
FabrikantRS PRO
92,82 €
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Aantal stuks
Single 1-1/4 in BSP Stainless Steel 14 bar 1-1/4in BSP
RS-stocknr. 486-164
FabrikantRS PRO
13,26 €
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Single 1 in BSPP Brass 12 bar 1in BSPP
RS-stocknr. 486-148
FabrikantRS PRO
8,54 €
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Single 1/2 in BSPP Brass 12 bar 1/2in BSPP
RS-stocknr. 720-9273
FabrikantRS PRO
100,33 €
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Aantal stuks
Single 3/4 in BSP Stainless Steel 25 bar 3/4in BSP
RS-stocknr. 486-211
FabrikantRS PRO
29,75 €
Each
Aantal stuks
Single 1-1/4 in BSPP Brass 16 bar 1-1/4in BSP
RS-stocknr. 720-9279
FabrikantRS PRO
80,96 €
Each
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Single 1/2 in BSP Stainless Steel 25 bar 1/2in BSP
RS-stocknr. 486-221
FabrikantRS PRO
36,29 €
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Single 1-1/2 in BSPP Brass 16 bar 1-1/2in BSP
RS-stocknr. 486-160
FabrikantRS PRO
22,14 €
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Single 1-1/4 in BSPP Brass 12 bar 1-1/4in BSPP
RS-stocknr. 720-9282
FabrikantRS PRO
111,28 €
Each
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Single 1 in BSP Stainless Steel 25 bar 1in BSP
RS-stocknr. 486-158
FabrikantRS PRO
12,09 €
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Single 3/4 in BSPP Brass 12 bar 3/4in BSPP
RS-stocknr. 720-9336
FabrikantRS PRO
79,76 €
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Sight Glass 1/2 in BSP Brass 12 bar 1/2in BSP
RS-stocknr. 284-2711
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84,50 €
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Single 3/4 in BSPT Bronze 25 bar 3/4in BSPT
RS-stocknr. 284-2727
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173,29 €
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Single 1 in BSPT Bronze 25 bar 1in BSPT
RS-stocknr. 486-215
FabrikantRS PRO
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Single 3/4 in BSPP Brass 16 bar 3/4in BSP
RS-stocknr. 499-2650
FabrikantRS PRO
68,58 €
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Single 1 in BSP Stainless Steel 14 bar 1in BSP
RS-stocknr. 284-2733
FabrikantRS PRO
152,99 €
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Single 1-1/4 in BSPT Bronze 25 bar 1-1/4in BSPT
RS-stocknr. 720-9285
FabrikantRS PRO
50,29 €
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RS-stocknr. 510-3766
FabrikantRS PRO
37,14 €
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Single 1 in BSPT Bronze 20 bar 1in BSPT
RS-stocknr. 340-3339
FabrikantRS PRO
31,41 €
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Single 1-1/2 in BSP Brass 16 bar 1-1/2in BSP
RS-stocknr. 720-9349
FabrikantRS PRO
101,17 €
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Sight Glass 1 in BSP Brass 12 bar 1in BSP
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