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 pneumatic...
plastic melt non-return valve
plastic melt non-return valve

... some leakage. This leakage can be avoided with the implementation of the Herzog valve, which is constructed and works on the principle of a non-return valve. These valves can be built into every mold. ...

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 ...

lift check valve
lift check valve
VS 121

DN: 15 mm - 250 mm
Pressure: 40, 16 bar

... For horizontal position. • With the help of spring, loaded a more watertight and quicker sealing can be obtained. • Drilled and dimensioned flanged according to DIN • Distance between sides according to DIN 3202 F-1. ...

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Valvulas VS, S.L.
poppet check valve
poppet check valve
277

DN: 10 mm - 50 mm
Pressure: 16 bar
Temperature: 200 °C

... closing thightness acc. EN -12334 compact settlement environment-friendly no maintenance Aplications hot cold and cooling water plants neutral fluids ...

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VARIMEX-VALVES Poland Sp.z.o.o.
ball check valve
ball check valve
H41F-10S/F

DN: 15 mm - 300 mm
Pressure: 1,000,000 Pa
Temperature: -14 °C - 90 °C

... CPVC Vertical Ball Check Valve Temperature: Ordinary Temperature Function: Nrvr Silence Sealing Form: Gland Packings Globe Valve Flow Direction: Unidirection/Reversing Standard: GB Application: ...

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Ningbo Baodi Plastic Valve Co., Ltd.
piston check valve
piston check valve
3250.01.NP

DN: 0.125 in - 4 in
Pressure: 0 bar - 255 bar
Temperature: -29 °C - 400 °C

... Check valves, also known as one-way valves, non-return valves, or single-flow valves allow fluid to flow in the direction of the arrow but do not allow fluid to flow ...

swing check valve
swing check valve

DN: 15 mm - 1,200 mm
Pressure: 1 MPa - 42 MPa
Temperature: -196 °C - 540 °C

... The swing check valve, also known as a one-way valve or a check valve, is used to prevent the backflow of the medium in the pipeline. The valve that ...

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ChinaTanggong Valve Co., Ltd.
dual plate check valve
dual plate check valve

hygienic check valve
hygienic check valve
EDF

DN: 6 mm - 200 mm
Pressure: 16 bar
Temperature: -20 °C - 220 °C

... The innovative springless check valve for clean applications. Maximum hygiene with no maintenance required. Tightness guaranteed in all installation positions, even vertical with downward flow. The patented YGROS ...

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Ygros SRL
disc check valve
disc check valve
CLASAR®

DN: 80 mm - 1,800 mm
Pressure: 0 bar - 50 bar
Temperature: -30 °C - 130 °C

... CLASAR®: the valve with high dynamic response, allowing the most effective protection against water hammer from pumps. Available in stainless steel and duplex construction on request. Check Valve CLASAR® ...

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 ...

swing check valve
swing check valve
GR01

DN: 0.375 in
Pressure: 0 bar - 16 bar
Temperature: -25 °C - 180 °C

... swing check valve 3/8" inch female thread, body made of stainless steel 1.4408, disc made of stainless steel 1.4408 seal metall installation position: - horizontal or vertical with ascendant fluid product feature: ...

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NieRuf Gmbh
cartridge check valve
cartridge check valve
OWC, WBC series

DN: 4 mm - 14 mm
Pressure: 0 bar - 350 bar
Temperature: -30 °C - 80 °C

... Counterbalance valves with single effect, compact configuration, excellent flow regulation and excellent working stability. Flow rate: from 1 to 60 l/min. Max working pressure 350 bar. ...

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OMT Group
disc check valve
disc check valve
BV36

DN: 15 mm - 300 mm

... • disco wafer check valve • spring loaded execution • flange connections according PN10/16/40 and A-150/A-300 on request • face to face dimension according DIN EN 558-1 • easy to install and maintenance free • low opening ...

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Belven nv
ball check valve
ball check valve
100000 series

DN: 10 mm - 100 mm
Pressure: 12, 16, 25, 40, 10 bar
Temperature: -10 °C - 150 °C

... Full bore check valve, F/F threaded, Viton® seat suitable for application with not halogenated hydrocarbons and fuels (gasolines, kerosene...). ...

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Rubinetterie Bresciane
piston check valve
piston check valve
231

DN: 0.5 in - 2 in

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DRAC ENGINYERS, S.L.
exhaust check valve
exhaust check valve
H44

... Power Station Check Valve Quick Details: Model NO.: H44 Flow Direction: Unidirection Standard: ANSI Application: Industrial Usage, Water Industrial Usage, Household Usage Characteristic: Pressure Sealed ...

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Vatac Valves (Wenzhou) Corporation
steel check valve
steel check valve

DN: 2 in - 36 in

... Bellow Seals Globe Valves – Y-Pattern, Standard & Bellow Seals Swing Check – Wafer Check Valves, Dual Disc, Tilting Disc Piston Check – Ball Check ...

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TPS TECHNITUBE RÖHRENWERKE GMBH
lift check valve
lift check valve

DN: 50 mm - 400 mm

... 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 will be raised up from the sealing surface of the ...

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

DN: 8 mm - 150 mm
Pressure: 16 bar - 64 bar
Temperature: -196 °C - 300 °C

... port way Ball Type Floating ball,fixed ball,V-shaped ball valve,The 3-way ball valve Stem Blowout-proof stem Seat Sealing Integral body seat ,seat welded and overlaid Valve Operation Gear,pneumatic,Hydraulic,Electric ...

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Zhejiang Ouming Fluid Casting Industry Co., Ltd.
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

... Type 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 ...

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Jiangsu Deenpu Petrochemical Machinery Co.,Ltd
disc check valve
disc check valve
8015

DN: 80 mm - 200 mm
Pressure: 10, 16 bar
Temperature: 60 °C

... Association for Gas and Water Applications), it is your reliable check valve. Perfect for all projects in which water should only flow in one direction: to the consumer. The Dueker check valve ...

poppet check valve
poppet check valve
5R

DN: 3 mm - 8 mm
Pressure: 0.1 bar - 6 bar
Temperature: -40 °C - 180 °C

... Check valves are used to prevent media from flowing back in systems or to protect equipment against media blow-back. The three types (with spring, without spring and COMPACT) allow for use in many different applications. ...

ball check valve
ball check valve
331.03 series

DN: 0.125 in - 0.5 in

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Aircomp by Stampotecnica
piston check valve
piston check valve
03

DN: 0.25 in - 2 in
Pressure: 16, 40 bar
Temperature: -20 °C - 180 °C

... Description Check Valve Body Brass, Stainless Steel ...

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