Pneumatic Non-Return Valves

Pneumatic non-return valves are one of the simplest types of pneumatic valves available. They allow compressed air to flow in one direction and prevent or block it from flowing in the opposite direction. Also known as a check valve these simple but effective devices help to eliminate any potential damage that may be caused by backflow pressure. RS Components offer a range of high-quality valves from leading brands including Festo, SMC, Legris, Norgren and of course RS PRO.

How does a Pneumatic Non-Return Valve Work?

Non-return valves work automatically, which means that most valves don’t need human intervention external control to work. The valves will have two openings or ports, an inlet and an outlet port. An internal spring will lift when the pressure upstream is great enough to overcome the tension of the spring. This is referred to as the ‘cracking pressure’.

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 are the different types of Pneumatic Non-return valve?

Pneumatic non-return valves are available in two main types. Push in tube-to-tube or Push-in tube to threaded.

Tube-to-Tube Non Return Valves

This type of non-return valve will have a push-in connection port at either end. They are available with different body materials, including brass and aluminium. Hose sizes ranging from 4 mm to 12 mm

Tube to Threaded Non Return Valves

This type of non-return valve will have a tube connection on one end and a threaded connection on the other. They are available with different body materials including brass and aluminium. Hose sizes ranging from 4 mm to 12 mm. Threads are typically BSPP (G), BSPT (R), NPT, and Metric.


...
Lees meer Lees minder

Filters

1 - 20 van 128 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Manufacturer Series Inlet Connection Type Threaded Inlet Connection Tube Inlet Connection Outlet Connection Type Threaded Outlet Connection Tube Outlet Connection Cracking Pressure Threaded Inlet Gender Minimum Operating Pressure Maximum Operating Pressure Maximum Operating Temperature Threaded Outlet Gender Threaded Inlet Thread Size
RS-stocknr. 445-3127
Fabrikantnummer7985 06 10
FabrikantLegris
€ 13,87
Each
Aantal stuks
7985 Tube - 6mm Threaded R 1/8 Male - - - 1bar 10 bar +70°C Male -
RS-stocknr. 367-0624
FabrikantnummerAKH06-00
FabrikantSMC
€ 7,80
Each
Aantal stuks
AKH Tube - 6mm Tube - 6mm 0.005MPa - -100kPa 1 MPa +60°C - -
RS-stocknr. 826-8125
FabrikantnummerAKH04B-M5
FabrikantSMC
€ 8,26
Each
Aantal stuks
AKH Tube - 4mm Threaded M5 x 0.8 Male - 0.005MPa - -100kPa 1 MPa, 1.5 MPa +60°C Male -
RS-stocknr. 189-2844
Fabrikantnummer7996 08 00
FabrikantLegris
€ 16,71
Each
Aantal stuks
7996 Tube - 8mm Tube - 8mm - - 1bar 10 bar +70°C - -
RS-stocknr. 722-570
FabrikantnummerS/521
FabrikantNorgren
€ 43,77
Each
Aantal stuks
S/520 Threaded G 1/4 Female - Threaded G 1/4 Female - <0.1bar Female 0.3bar 16 bar +80°C Female 1/4in
RS-stocknr. 445-3105
Fabrikantnummer7995 06 13
FabrikantLegris
€ 14,45
Each
Aantal stuks
7995 Threaded R 1/4 Male - Tube - 6mm - Male 1bar 10 bar +70°C - 1/4in
RS-stocknr. 916-0943
FabrikantRS PRO
€ 8,56
Each
Aantal stuks
CVPU Tube - 6mm Tube - 6mm - - 0bar 10 bar +60°C - -
RS-stocknr. 445-3149
Fabrikantnummer7985 08 13
FabrikantLegris
€ 15,94
Each
Aantal stuks
7985 Tube - 8mm Threaded R 1/4 Male - - - 1bar 10 bar +70°C Male -
RS-stocknr. 189-2816
Fabrikantnummer7996 04 00
FabrikantLegris
€ 13,89
Each
Aantal stuks
7996 Tube - 4mm Tube - 4mm 0.3bar - 1bar 10 bar +70°C - -
RS-stocknr. 189-2838
Fabrikantnummer7996 06 00
FabrikantLegris
€ 14,85
Each
Aantal stuks
7996 Tube - 6mm Tube - 6mm - - 1bar 10 bar +70°C - -
RS-stocknr. 367-0630
FabrikantnummerAKH08-00
FabrikantSMC
€ 12,03
Each
Aantal stuks
AKH Tube - 8mm Tube - 8mm 0.005MPa - -100kPa 1 MPa +60°C - -
RS-stocknr. 826-8140
FabrikantnummerAKH11A-N04S
FabrikantSMC
€ 24,04
Each
Aantal stuks
AKH Tube - 3/8in Threaded NPT 1/2 Male - 0.005MPa - -100kPa 1 MPa, 1.5 MPa +60°C Male -
RS-stocknr. 849-7238
FabrikantnummerAKB01B-N01S
FabrikantSMC
€ 9,99
Each
Aantal stuks
AKB Threaded NPT 1/8 Male - Threaded NPT 1/8 Female - 0.005MPa Female -100kPa 1 MPa +60°C Female 1/8
RS-stocknr. 367-0618
FabrikantnummerAKH04-00
FabrikantSMC
€ 7,52
Each
Aantal stuks
AKH Tube - 4mm Tube - 4mm 0.005MPa - -100kPa 1 MPa +60°C - -
RS-stocknr. 703-6251
Fabrikantnummer0821200005
€ 33,45
Each
Aantal stuks
CC01 Threaded G 1/4 Female - Threaded G 1/4 Female - - Female 0.5bar 10 bar +80°C Female 1/4in
RS-stocknr. 384-7650
FabrikantnummerT55C1800
FabrikantNorgren
€ 23,60
Each
Aantal stuks
T55 Threaded G 1/8 Female - Threaded G 1/8 Female - 0.05bar Female 0.1bar 10 bar +80°C Female 1/8in
RS-stocknr. 722-564
FabrikantnummerS/520
FabrikantNorgren
€ 25,98
Each
Aantal stuks
S/520 Threaded G 1/8 Female - Threaded G 1/8 Female - <0.1bar Female 0.3bar 16 bar +80°C Female 1/8in
RS-stocknr. 849-7231
FabrikantnummerAKB02B-N02S
FabrikantSMC
€ 12,99
Each
Aantal stuks
AKB Threaded NPT 1/4 Female - Threaded NPT 1/4 Female - 0.005MPa Female -100kPa 1 MPa +60°C Female 1/4
RS-stocknr. 826-8128
FabrikantnummerAKH07-00
FabrikantSMC
€ 9,20
Each
Aantal stuks
AKH Tube - 1/4in Tube - 1/4in 0.005MPa - -100kPa 1 MPa, 1.5 MPa +60°C - -
RS-stocknr. 445-3098
Fabrikantnummer7995 06 10
FabrikantLegris
€ 13,87
Each
Aantal stuks
7995 Threaded R 1/8 Male - Tube - 6mm - Male 1bar 10 bar +70°C - 1/8in