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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Description Prix 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
N° de stock RS 324-4944
MarqueRS PRO
88,04 €
Each
Unité
FT257 - - - 400bar 110L/min -20°C +200°C 1/4in BSP 1/4 Stainless Steel, Steel Inline
N° de stock RS 283-8295
MarqueRS PRO
11,27 €
Each
Unité
FT260 - - - 350bar 15L/min -20°C +100°C 1/4in G 1/4 Steel Inline
N° de stock RS 237-2442
Référence fabricant2301
MarqueParker
28,00 €
Each
Unité
- - - 0.35bar - 20L/min -30°C +90°C 1/4in G 1/4 Steel Inline
N° de stock RS 727-856
Référence fabricantRHDIR3/8CF
MarqueParker
47,50 €
Each
Unité
L3 - - - 400bar 8m/s -35°C +100°C 3/8in G 3/8 Zinc Plated Steel Inline
N° de stock RS 134-7042
Référence fabricantZRD-ABA02-S0-D1
MarqueParker
508,99 €
Each
Unité
ZRD CETOP 5 Double 0.7bar 315bar 160L/min -20°C +60°C - - - CETOP
N° de stock RS 237-2470
Référence fabricant2303
MarqueParker
43,55 €
Each
Unité
- - - 0.35bar - 50L/min -30°C +90°C 1/2in G 1/2 Steel Inline
N° de stock RS 134-7043
Référence fabricantZRD-ABZ02-S0-D1
MarqueParker
508,99 €
Each
Unité
ZRD CETOP 5 Double 0.7bar 315bar 160L/min -20°C +60°C - - - CETOP
N° de stock RS 134-7032
Référence fabricantZRD-BA01-S0-D1
MarqueParker
344,82 €
Each
Unité
ZRD CETOP 3 Single 0.7bar 350bar 80L/min -20°C +60°C - - - CETOP
N° de stock RS 134-7045
Référence fabricantZRV-P-02
MarqueParker
370,18 €
Each
Unité
ZRV CETOP 5 Single 0.5bar 315bar 100L/min -20°C +60°C - - - CETOP
N° de stock RS 728-893
Référence fabricantR900481624
246,42 €
Each
Unité
- CETOP 3 Double - - 80L/min - - - - - CETOP
N° de stock RS 134-7049
Référence fabricantZRE-A02-D1
MarqueParker
550,85 €
Each
Unité
ZRE CETOP 5 Single 2bar 315bar 120L/min -20°C +60°C - - - CETOP
N° de stock RS 324-4966
MarqueRS PRO
125,54 €
Each
Unité
FT257 - - - 400bar 65L/min -20°C +200°C 1/2in BSP 1/2 Stainless Steel, Steel Inline
N° de stock RS 134-7036
Référence fabricantZRD-ABZ01-S0-D1
MarqueParker
415,34 €
Each
Unité
ZRD CETOP 3 Double 0.7bar 350bar 80L/min -20°C +60°C - - - CETOP
N° de stock RS 134-7048
Référence fabricantZRE-AB01-D1
MarqueParker
403,22 €
Each
Unité
ZRE CETOP 3 Double 1.2bar 350bar 60L/min -20°C +60°C - - - CETOP
N° de stock RS 283-8324
MarqueRS PRO
32,74 €
Each
Unité
FT260 - - - 350bar 80L/min -20°C +100°C 3/4in G 3/4 Steel Inline
N° de stock RS 237-2486
Référence fabricant2304
MarqueParker
63,76 €
Each
Unité
- - - 0.35bar - 100L/min -30°C +90°C 3/4in G 3/4 Steel Inline
N° de stock RS 807-312
Référence fabricantEW06LCF
MarqueParker
8,58 €
Each
Unité
RHZ18 - - - 400bar - -40°C +120°C 1/2in G 1/2 Steel Inline
N° de stock RS 134-7050
Référence fabricantZRE-B02-D1
MarqueParker
550,85 €
Each
Unité
ZRE CETOP 5 Single 2bar 315bar 120L/min -20°C +60°C - - - CETOP
N° de stock RS 134-7044
Référence fabricantZRV-P-01
MarqueParker
296,83 €
Each
Unité
ZRV CETOP 3 Single 0.5bar 350bar 40L/min -20°C +60°C - - - CETOP
N° de stock RS 237-2458
Référence fabricant2302
MarqueParker
31,78 €
Each
Unité
- - - 0.35bar - 30L/min -30°C +90°C 3/8in G 3/8 Steel Inline