Check valves

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Check valves | How to choose the right check valve
The check valve allows fluid to flow in one direction only, blocking its passage in the opposite direction. Fluid backflow can damage circuits, especially hydraulic circuits. These valves can also prevent liquid or steam leaks if there are faults in the pipe structure. They are also installed in sewage pipes to prevent backflow and the passage of bad smells. Check valves can be found in hydraulic pumps and motors, ventilation systems, pump pipes, hydraulic and...
ball check valve
ball check valve
40 series

DN: 0.25 in - 1 in
Pressure: 0 bar - 1,500 bar
Temperature: -20 °C - 200 °C

Duff-Norton Europe ball check valves for high or low pressure hydraulic circuits prevent flow reversal in a circuit or protect against overpressure that can occur in certain parts of a circuit. Unguided ...

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Duff-Norton Europe
male check valve
male check valve
A 209

DN: 0.375 in

Non-Return Valve • Spring-loaded • Connection: 3/8" NPT male (2x)

NPT check valve
NPT check valve
50017x series

DN: 0.25 in

... Directional Control Valves. The 1⁄4 NPT (500172) and the SAE-4 (500174) “P” port check valves are required on all single acting or double acting circuits where there is more than one ...

pilote-operated check valve
pilote-operated check valve
158

Pressure: 1 bar - 10 bar
Temperature: -10 °C - 70 °C

- Whitworth pipe thread - Thread G2 for manual override - Chambered O-ring - Sealing: NBR - Material: brass nickel plated, Al black anodized - Allowable medium: air - Temperature range 14 to 158 °F (-10 to +70 °C) - Working pressure ...

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EISELE GmbH
BSPT non-return valve
BSPT non-return valve
NR series

DN: 0.75, 1, 0.5 in

Paani Precisions is one of the most renowned Brass Non Return Valve Manufacturers, Suppliers and Exporter. For manufacturing these components, we ensure that fine quality of brass metal is used. Further, ...

swing check valve
swing check valve

DN: 150 mm - 300 mm
Pressure: 0 bar - 0.1 bar
Temperature: 80 °C

The Stanelle overpressure/vacuum flap is a safety component for silos loaded with compressed air systems. During pneumatic loading processes the combined action of these flaps can compensate for both overpressure and vacuum generated ...

spring check valve
spring check valve
Drip-Pro™

... -Pro™ is the Spray Nozzle Engineering check valve for the Click&Dry™ series, also known as non-return valve and reflux valve, this valve works automatically ...

disc check valve
disc check valve

DN: 50 mm - 400 mm
Pressure: 16, 10 bar

The measurements of the flanges are corresponding to DIN EN 1092-2 Features Material: GJS (GGG) EWS (fusion bonded epoxy) coating Bolt: X15Cr13 Sealing: rubber

non-return valve
non-return valve
71501

71501 Non-return valve as art. 71504 with 1” BSP connection (F).

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Ompi Srl
ball check valve
ball check valve
BCV150

DN: 2, 0.5 in
Pressure: 125, 150, 30 psi
Temperature: 72, 140 °F

Ball / Check Valve Combo Features: Ball/check combo provides compact design Heavy-duty PVC Vertical or horizontal installation

non-return valve for precision applications
non-return valve for precision applications

Abrasive "nonreturn" system that allows the autonomous operation of the machine. If a jam in the cutting process occurs, it prevents water and abrasive rising up and wetting the hopper. It also incorporates the new 2.0 CUT CONTROL system ...

pilot-operated check valve
pilot-operated check valve
VCP

Pressure: 10 bar - 70 bar
Temperature: 0 °C - 70 °C

ball check valve
ball check valve
RHV-M-ED series

DN: 6 mm - 38 mm
Pressure: 250, 160, 100, 400 bar

RHV-M-ED Check Valves RHV06ZLMEDA3C RHV08ZLMEDA3C RHV10ZLMEDA3C RHV12ZLMEDA3C RHV15ZLMEDA3C RHV18ZLMEDA3C RHV22ZLMEDA3C RHV28ZLMEDA3C RHV35ZLMEDA3C RHV42ZLMEDA3C RHV08ZLMEDA3C RHV10ZLMEDA3C RHV12ZLMEDA3C RHV14ZLMEDA3C RHV16ZLMEDA3C RHV20ZLMEDA3C RHV25ZLMEDA3C ...

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WUXI SAMWAY CO.,LTD
dual plate check valve
dual plate check valve
8070 series

DN: 3.175 mm - 19.05 mm
Pressure: 35 MPa

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Hydroscand
ball check valve
ball check valve
CHECKBRASS series

DN: 0.5 in - 4 in

Suitable for domestic water services, heating and air-conditioning plants, compressed air systems. They can be installed in any position: vertical, horizontal, oblique. Body in brass. Plate in stainless steel. Washer in NBR. Spring ...

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