Hydraulic Check Valves

Hydraulic check valves although simple, perform a very important function within a hydraulic system. Check valves allow the free flow of fluid in one direction and block the flow travelling in the opposite direction. Also known as an NRV (non-return valve) these simple devices help eliminate any potential damage caused by fluid backflow pressure. RS Components offer a range of high-quality hydraulic components from leading brands including Parker, Bosch Rexroth and of course RS PRO.

How does a Hydraulic Check Valve work?

Hydraulic check valves have two ports, an inlet port and an outlet port, they are flow sensitive and depend on the fluid to open and close the internal seat. Hydraulic check valves are quite unique, they are one of the only types of valve that does not require any human intervention to operate. Hydraulic check valves are completely self-automated.

Mounting types for Hydraulic Check Valves

Hydraulic check valves are available in two main mounting types. Inline threaded, or CETOP plate mounting.

Hydraulic Inline Threaded Check Valves

In-line check valves can be mounted directly in a hydraulic pipeline. They are typically made from steel or stainless steel with a tough nitrile rubber or nylon seal. Standard BSP threads in sizes ranging from 1/4 inch to 1 inch.

CETOP Mounting Hydraulic Check Valves

These check valves are enclosed in a metal or plastic housing and have a CETOP mounting pattern for modular construction. Available in double-acting or single-acting.

What is Cracking Pressure?

Cracking pressure refers to the minimum pressure differential needed between the inlet and outlet of the valve at which the first indication of flow occurs. When cracking pressure is reached, the valve will open to allow flow, when it drops the valve will close.

What is CETOP?

CETOP stands for Comité Européen des Transmissions Oléohydrauliques et Pneumatiques. CETOP is the European Fluid Power Committee. CETOP is the communications platform for fluid power in Europe. CETOP mounting valves have a standard mounting pattern for modular construction. It ensures that any valves from any manufacturer, providing the CETOP pattern is the same is compatible with each other.


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Omschrijving Prijs Manufacturer Series CETOP Mounting Single/Double Cracking Pressure Maximum Operating Pressure Maximum Flow Rate Minimum Operating Temperature Maximum Operating Temperature Thread Size Connection Port Thread Body Material Mounting Type
RS-stocknr. 324-4944
FabrikantRS PRO
88,04 €
Each
Aantal stuks
FT257 - - - 400bar 110L/min -20°C +200°C 1/4in BSP 1/4 Stainless Steel, Steel Inline
RS-stocknr. 283-8295
FabrikantRS PRO
11,27 €
Each
Aantal stuks
FT260 - - - 350bar 15L/min -20°C +100°C 1/4in G 1/4 Steel Inline
RS-stocknr. 237-2442
Fabrikantnummer2301
FabrikantParker
28,00 €
Each
Aantal stuks
- - - 0.35bar - 20L/min -30°C +90°C 1/4in G 1/4 Steel Inline
RS-stocknr. 727-856
FabrikantnummerRHDIR3/8CF
FabrikantParker
47,50 €
Each
Aantal stuks
L3 - - - 400bar 8m/s -35°C +100°C 3/8in G 3/8 Zinc Plated Steel Inline
RS-stocknr. 134-7040
FabrikantnummerZRD-BZ02-S0-D1
FabrikantParker
421,95 €
Each
Aantal stuks
ZRD CETOP 5 Single 0.7bar 315bar 160L/min -20°C +60°C - - - CETOP
RS-stocknr. 134-7039
FabrikantnummerZRD-BA02-S0-D1
FabrikantParker
421,95 €
Each
Aantal stuks
ZRD CETOP 5 Single 0.7bar 315bar 160L/min -20°C +60°C - - - CETOP
RS-stocknr. 324-4972
FabrikantRS PRO
169,02 €
Each
Aantal stuks
FT257 - - - 400bar 90L/min -20°C +200°C 3/4in BSP 3/4 Stainless Steel, Steel Inline
RS-stocknr. 134-7037
FabrikantnummerZRD-AA02-S0-D1
FabrikantParker
421,95 €
Each
Aantal stuks
ZRD CETOP 5 Single 0.7bar 315bar 160L/min -20°C +60°C - - - CETOP
RS-stocknr. 134-7042
FabrikantnummerZRD-ABA02-S0-D1
FabrikantParker
508,99 €
Each
Aantal stuks
ZRD CETOP 5 Double 0.7bar 315bar 160L/min -20°C +60°C - - - CETOP
RS-stocknr. 134-7048
FabrikantnummerZRE-AB01-D1
FabrikantParker
403,22 €
Each
Aantal stuks
ZRE CETOP 3 Double 1.2bar 350bar 60L/min -20°C +60°C - - - CETOP
RS-stocknr. 324-4966
FabrikantRS PRO
125,54 €
Each
Aantal stuks
FT257 - - - 400bar 65L/min -20°C +200°C 1/2in BSP 1/2 Stainless Steel, Steel Inline
RS-stocknr. 728-893
FabrikantnummerR900481624
FabrikantBosch Rexroth
246,42 €
Each
Aantal stuks
- CETOP 3 Double - - 80L/min - - - - - CETOP
RS-stocknr. 134-7050
FabrikantnummerZRE-B02-D1
FabrikantParker
550,85 €
Each
Aantal stuks
ZRE CETOP 5 Single 2bar 315bar 120L/min -20°C +60°C - - - CETOP
RS-stocknr. 134-7032
FabrikantnummerZRD-BA01-S0-D1
FabrikantParker
344,82 €
Each
Aantal stuks
ZRD CETOP 3 Single 0.7bar 350bar 80L/min -20°C +60°C - - - CETOP
RS-stocknr. 237-2458
Fabrikantnummer2302
FabrikantParker
31,78 €
Each
Aantal stuks
- - - 0.35bar - 30L/min -30°C +90°C 3/8in G 3/8 Steel Inline
RS-stocknr. 134-7033
FabrikantnummerZRD-BZ01-S0-D1
FabrikantParker
344,82 €
Each
Aantal stuks
ZRD CETOP 3 Single 0.7bar 350bar 80L/min -20°C +60°C - - - CETOP
RS-stocknr. 237-2486
Fabrikantnummer2304
FabrikantParker
63,76 €
Each
Aantal stuks
- - - 0.35bar - 100L/min -30°C +90°C 3/4in G 3/4 Steel Inline
RS-stocknr. 807-312
FabrikantnummerEW06LCF
FabrikantParker
8,58 €
Each
Aantal stuks
RHZ18 - - - 400bar - -40°C +120°C 1/2in G 1/2 Steel Inline
RS-stocknr. 134-7045
FabrikantnummerZRV-P-02
FabrikantParker
370,18 €
Each
Aantal stuks
ZRV CETOP 5 Single 0.5bar 315bar 100L/min -20°C +60°C - - - CETOP
RS-stocknr. 134-7049
FabrikantnummerZRE-A02-D1
FabrikantParker
550,85 €
Each
Aantal stuks
ZRE CETOP 5 Single 2bar 315bar 120L/min -20°C +60°C - - - CETOP