Backflow check valves

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Backflow 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 pneumatic...
swing check valve
swing check valve
H24X series

DN: 2 in - 12 in
Pressure: 16 bar
Temperature: -10 °C - 82 °C

... Door Check Valve is a wafered,double door swing type check valve thatallows water flow in one direction only.A hinged clapper remains open with waterflowing in one direction, and automaticallycloses ...

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Nuevas líneas de extincion
ball check valve
ball check valve
A0010-1-1 series

DN: 0.25, 0.375, 0.5, 0.75, 1 mm
Pressure: 2,500 psi
Temperature: -15 °F - 650 °F

... Single Ball Check Valve, High Viscosit 316 stainless steel with pinned end No spring Easily disassembled for inspection and cleaning MNPT x MNPT (male to male) Ideal for high viscosity chemical and fluid processing ...

disc check valve
disc check valve
221

DN: 150 mm - 1,600 mm
Pressure: 10, 16, 25 bar

... ACMO tilting disc check valves are installed in pumping applications to prevent backflow in the system. All interior parts are stainless steel or coated with drinking water approved epoxy. Measures are ...

backflow check valve
backflow check valve
ARV

... The vacuum controlled check valve (ARV) is a pneumatically operated on-off valve featuring low pressure loss. To activate this valve, vacuum from the intake manifold is supplied by a ...

ball check valve
ball check valve
VN 3000 series

DN: 0.5 in
Pressure: 16 bar
Temperature: 4 °C - 100 °C

... Brass ball valves with incorporated stainless steel filter, check valves, a blend of manometer and darin. Ball valves are multipurpose for the hydraulic system. Valve ...

disc check valve
disc check valve
72700 series

DN: 25 mm - 100 mm
Pressure: 10 bar
Temperature: -10 °C - 140 °C

... A check valve, or non return valve, is a valve that prevents the fluid from flowing backwards and ensures that it flows in only one direction. It can be used to prevent the loss of prime ...

lift check valve
lift check valve

DN: 50 mm - 400 mm

... available with this valve. Features 1.The valve disc moves up and down along the midline of the valve body. Under the pressure of the fluid which flows in one direction, the valve disc ...

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Henan Quanshun Flow Control Science and Technology Co.,Ltd
disc check valve
disc check valve
FFC

DN: 18 in - 56 in
Temperature: 780 °C

... The fluidised catalytic cracking (FCC) air blower line check valves are used to prevent the backflow of catalyst from the regenerator. IMI Remosa’s check valves guarantee ...

backflow check valve
backflow check valve

DN: 1.25 in - 3.5 in
Pressure: 10,000, 5,000, 3,000, 2,000, 15,000 psi

... H Back Pressure Valve (BPV) is a one way check valve, also known as a non return valve or NRV, which is used to safely seal tubing during installation of Christmas Trees, ...

disc check valve
disc check valve
V702

DN: 15 mm - 200 mm
Pressure: 10, 16, 40 bar
Temperature: -200 °C - 500 °C

... to DN200 with precision lapped metal-to-metal seating providing tight shut-off. • Ideally suited to be used as a backflow prevention valve in water/wastewater treatment,marine,HVAC and other general industrial applications ...

piston check valve
piston check valve
CV series

DN: 0.25 in - 1 in
Pressure: 0 psi - 30,000 psi
Temperature: 0 °C - 49 °C

... The NuQuip® Model CV Series Check Valve is an in-line, piston style valve offering a zero leak design for applications requiring working pressures up to 30,000 psi (2,068 bar). The check ...

membrane check valve
membrane check valve
ECO 3F

DN: 65, 80, 100, 150 mm
Pressure: 0 bar - 10 bar
Temperature: 0 °C - 65 °C

... They consist of 2 spring check valves and a chamber situated between the spring check valves that contain a security valve, which in the event of “ backflow”, ...

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Brandoni
safety non-return valve
safety non-return valve
40002BA

... To avoid the backflow of materials up to category 4 into the drinking water installation, the backflow preventer BA (acc. to DIN EN 1717 a “ backflow preventer with a controllable middle pression area”) ...

swing check valve
swing check valve
BICV-0 series

DN: 0.25 in - 4 in
Pressure: 400, 125, 175 psi
Temperature: -12 °C - 178 °C

... The Series BICV Brass Inline Check Valves are ideal for use with a broad array of service mediums including compatible oils, gases, fuels and hydrocarbons. They incorporate a soft seat for a bubble-tight shutoff and are ...

ball check valve
ball check valve
VAP 32÷50

... BALL CHECK VALVES VAP ball check valves prevent backflow during plant maintenance or stoppages. They are designed for use even with soiled wastewaters to provide full ...

swing check valve
swing check valve
CRC - CRR

DN: 80 mm - 2,000 mm

... treatment plants, providing effective protection against flooding and backflow. CRC - CRR Flap Valves for Hydraulic System Protection CRC and CRR flap valves are designed to prevent backflow ...

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