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.


...
Read more Read less

Filter

Visar 1 - 20 av 128 produkter
Resultat per sida
Beskrivning Pris 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-artikelnummer 367-0646
Tillv. art.nrAKH10-00
VarumärkeSMC
170,33 kr
Each
Enheter
AKH Tube - 10mm Tube - 10mm 0.005MPa - -100kPa 1 MPa +60°C - -
RS-artikelnummer 849-7231
Tillv. art.nrAKB02B-N02S
VarumärkeSMC
126,49 kr
Each
Enheter
AKB Threaded NPT 1/4 Female - Threaded NPT 1/4 Female - 0.005MPa Female -100kPa 1 MPa +60°C Female 1/4
RS-artikelnummer 703-6255
Tillv. art.nr0821200008
253,88 kr
Each
Enheter
CC01 Threaded G 1/8 Female - Threaded G 1/8 Female - - Female 0.5bar 10 bar +80°C Female 1/8in
RS-artikelnummer 826-8128
Tillv. art.nrAKH07-00
VarumärkeSMC
84,49 kr
Each
Enheter
AKH Tube - 1/4in Tube - 1/4in 0.005MPa - -100kPa 1 MPa, 1.5 MPa +60°C - -
RS-artikelnummer 367-0618
Tillv. art.nrAKH04-00
VarumärkeSMC
70,44 kr
Each
Enheter
AKH Tube - 4mm Tube - 4mm 0.005MPa - -100kPa 1 MPa +60°C - -
RS-artikelnummer 826-8116
Tillv. art.nrAKH04B-01S
VarumärkeSMC
80,43 kr
Each
Enheter
AKH Tube - 4mm Threaded R 1/8 Male - 0.005MPa - -100kPa 1 MPa, 1.5 MPa +60°C Male -
RS-artikelnummer 367-0624
Tillv. art.nrAKH06-00
VarumärkeSMC
73,01 kr
Each
Enheter
AKH Tube - 6mm Tube - 6mm 0.005MPa - -100kPa 1 MPa +60°C - -
RS-artikelnummer 722-564
Tillv. art.nrS/520
VarumärkeNorgren
255,32 kr
Each
Enheter
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-artikelnummer 384-7666
Tillv. art.nrT55C2800RS
VarumärkeNorgren
269,27 kr
Each
Enheter
T55 Threaded G 1/4 Female - Threaded G 1/4 Female - 0.05bar Female 0.1bar 10 bar +80°C Female 1/4in
Nytt
RS-artikelnummer 218-0225
Tillv. art.nrC00GL0600
VarumärkeIMI Norgren
373,69 kr
Each
Enheter
C00GL Tube - 6mm Tube - 12.5mm - - - - - - -
Nytt
RS-artikelnummer 218-0226
Tillv. art.nrC00GL0800
VarumärkeIMI Norgren
720,49 kr
Each
Enheter
C00GL Tube - 8mm Tube - 14.5mm - - - - - - -
RS-artikelnummer 916-0934
VarumärkeRS PRO
42,87 kr
Each
Enheter
CVPU Tube - 4mm Tube - 4mm - - 0bar 10 bar +60°C - -
RS-artikelnummer 826-8125
Tillv. art.nrAKH04B-M5
VarumärkeSMC
75,67 kr
Each
Enheter
AKH Tube - 4mm Threaded M5 x 0.8 Male - 0.005MPa - -100kPa 1 MPa, 1.5 MPa +60°C Male -
RS-artikelnummer 202-3629
Tillv. art.nrHA-3/8-QS-10
VarumärkeFesto
574,79 kr
Each
Enheter
HA Threaded - - Tube - 10mm - - - - - - -
RS-artikelnummer 445-3149
Tillv. art.nr7985 08 13
VarumärkeLegris
166,01 kr
Each
Enheter
7985 Tube - 8mm Threaded R 1/4 Male - - - 1bar 10 bar +70°C Male -
RS-artikelnummer 176-2270
VarumärkeRS PRO
101,721 kr
Each (In a Pack of 10)
Enheter
- - - Push In 4mm - - Push In 4mm - - 2bar 8 bar +80°C - -
RS-artikelnummer 202-3558
Tillv. art.nrHA-1/8-QS-8
VarumärkeFesto
257,54 kr
Each
Enheter
HA Threaded - - Tube - 8mm - - - - - - -
RS-artikelnummer 187-5697
VarumärkeRS PRO
1 109,13 kr
1 Bag of 10
Påse(ar)
6063 Threaded 1/4 in Male - Threaded - - - Male 2bar 8 bar +80°C Female 1/4in
RS-artikelnummer 290-3692
Tillv. art.nrT50P0010
VarumärkeIMI Norgren
360,05 kr
Each
Enheter
T50P Tube - 10mm Tube - 10mm 0.03bar - -0.9bar 16 bar +80°C - -
RS-artikelnummer 203-8515
Tillv. art.nrHB-1/4-QS-6
VarumärkeFesto
246,95 kr
Each
Enheter
HB-1/4-QS-6 Threaded - 6mm Threaded - R1/4 - - - - - - -