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...
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poppet check valve
poppet check valve
CB, CBF series

DN: 0.125 in - 1 in
Pressure: 0 psi - 3,000 psi
Temperature: 100 °F - 400 °F

... Parker's CB Series check and filter check valves are a unique ball check design. These check valves handle uni-directional flow control of critical fluids ...

poppet check valve
poppet check valve
CO Series

DN: 0.125 in - 1 in
Pressure: 0 bar - 414 bar
Temperature: -56 °C - 204 °C

... Parker's CO Series check valves are designed for uni-directional flow control of critical fluids and gases in industries such as pharmaceutical,research and microelectronics. Parker’s CO Series Check ...

poppet check valve
poppet check valve
CV series

DN: 12, 10, 6 mm
Pressure: 0 bar - 800 bar
Temperature: -57 °C - 204 °C

... Flat Face quick coupling system with body sizes 1/4" up to 1" for medium pressure applications up to 800 bar. Coupling system with Parker Profile. Product Overview Parker's Flat Face Quick Coupling Series FF is a dry break coupling system with Parker ...

ball check valve
ball check valve
HGL series

Pressure: 0.5 bar - 10 bar
Temperature: -10 °C - 60 °C
Flow rate: 200 l/min - 1,400 l/min

... Stop valve with manual override option. • Valve function: piloted non-return function • Screw-in with external thread • Pneumatically piloted • Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4 • Manually actuated ...

ball check valve
ball check valve
CV

DN: 4 mm - 25 mm
Pressure: 10,000 psi

... Product Name
Check valve CV, DCV, CVF

Brand
Bifold

Range
BIFOLD - Check Valves

Short description
Bifold CV, DCV and CVF check ...

gas non-return valve
gas non-return valve

disc check valve
disc check valve
F series

Pressure: 400 bar
Temperature: -40 °C - 80 °C
Flow rate: 100 l/min - 7,000 l/min

... The check valve and pre-fill valve type F is a spring-loaded disk valve and has zero leakage in the closed state. The valve is attached directly to the cylinder and clamped ...

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HAWE Hydraulik SE
poppet check valve
poppet check valve
NSV series

Pressure: 0 bar - 320 bar
Temperature: -25 °C - 70 °C
Flow rate: 0 l/min - 550 l/min

... Anti-cavitation valves are used for filling and emptying the press cylinders of press brakes during opening and closing in rapid traverse mode. The HAWE anti-cavitation valves which are open in basic position are characterized ...

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HAWE Hydraulik SE
ball check valve
ball check valve
RHC

DN: 8 mm - 30 mm
Pressure: 500, 700, 400 bar
Temperature: -40 °C - 80 °C

... In the closed state the check valve type CRH and RHC has zero leakage. It can be screwed-in and can be integrated into control blocks. The necessary mounting holes are straightforward to make. Features and advantages ...

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HAWE Hydraulik SE
compressed air check valve
compressed air check valve
SST VNRX

DN: 0.25, 0.125 in
Pressure: 2 bar - 10 bar
Temperature: -10 °C - 70 °C

... two directions. • Short description: : Non return valve SST VNRX 1/8 • Quantity per package: : 5 • Minimum order quantity: : 5 • Unit of measure: : items • Functional denomination : Non return ...

compressed air check valve
compressed air check valve
VNR L

DN: 8, 6, 4 mm
Pressure: 0.5 bar - 12 bar
Temperature: -20 °C - 60 °C

... connection with a brass nickel-plated male thread and a push-in fitting.It is still the only check valve with holes for wall mounting. • Short description: : Non return valve VNR LØ ...

ball check valve
ball check valve
VNR

DN: 0.125, 0.25 in
Pressure: 2 bar - 10 bar
Temperature: -10 °C - 70 °C

... the two directions. • Short description: : Non return valve VNR 1/8'' • Quantity per package: : 10 • Minimum order quantity: : 10 • Unit of measure: : items • Functional denomination : Non return ...

throttle check valve
throttle check valve
CORM55 series

DN: 5.5 mm
Pressure: 0 bar - 280 bar
Temperature: -40 °C - 149 °C

... Insert style restrictor check valves are comprised of a precision flow orifice in series with a check valve, combined into a single component. Our insert style valves ...

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THE LEE COMPANY
throttle check valve
throttle check valve
COPM55 series

DN: 5.5 mm
Pressure: 0 bar - 280 bar
Temperature: -40 °C - 149 °C

... purchased in a variety of Lohm rates. IMH Press-in Restrictor Check Valves are, functionally, an orifice in series with a check valve, all in one 5.5mm diameter, cartridge-style package. ...

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THE LEE COMPANY
cartridge check valve
cartridge check valve
CZFM series

DN: 5.97 mm
Pressure: 400 bar

... one-way valve is made with an elastomeric valve seat for improved checked direction leakage performance. The soft seat makes this check valve ideal for pneumatic applications where zero ...

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THE LEE COMPANY
disc check valve
disc check valve
Edward

DN: 65 mm - 600 mm
Pressure: 110 bar - 760 bar

... The Edward Tilting Disk Check Valve is a large bore valve designed to close as quickly as possible, minimizing loud, damaging slamming and vibration noises caused by high-velocity reverse flow in high-pressure ...

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FLOWSERVE
piston check valve
piston check valve
SVL Flexline™

DN: 100 mm - 200 mm
Pressure: 65 bar
Temperature: -60 °C - 150 °C

... industrial refrigeration requirements worldwide. Flexibility above all characterizes the SVL platform. Using just two basic valve housings – a straightway and an angle way – the platform offers five different functions. You will find ...

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DANFOSS Refrigeration & Air Conditioning
flow control check valve
flow control check valve
SMC-02

... Check valves for flow control valve SF-G02 and throttle valve ST-G02 to be stacked below SF-G02 or ST-G02. ...

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Daikin PMC
swing check valve
swing check valve
CV-1FR

DN: 50 mm - 300 mm
Pressure: 20.7 bar

... Overview The Tyco® Model CV-1FR is a compact, swing-type riser check valve that permits water flow in one direction and prevents flow in the opposite direction. A spring-loaded clapper with a resilient elastomer ...

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Tyco
poppet check valve
poppet check valve
Z1S6P05-4X/V

DN: 6 mm
Pressure: 0 bar - 350 bar
Temperature: -20 °C - 80 °C

... Industrial hydraulic valve in a high performance range. Reliable blocking of the oil flow at selected ports. Seat valve Direct actuated Connection diagram - ISO 4401-03-02-0-05 Spool symbol - P2 → ...

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Bosch Rexroth - Industrial Hydraulics
disc check valve
disc check valve
AV-1-300

DN: 65 mm - 200 mm
Pressure: 1.4 bar - 20.7 bar

... public water supplies. The AV-1-300 Alarm Check Valve Trim includes pressure gauges to monitor system pressure conditions, a bypass check valve, a main drain valve, and ...

ball check valve
ball check valve
LP series

DN: 0.125 in - 0.5 in
Pressure: 380 bar - 1,030 bar
Temperature: -195 °C - 204 °C

... Soft Seat check valve variation. Note: For 316 stainless steel wetted parts, add -316WP to the catalog number. Cracking pressure: 15 PSI (1 bar) approximate Operating Temperature Range: 0 to 650 F (-18° to +343°C) BuTech ...

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Haskel
swing check valve
swing check valve
CV-300B

DN: 100 mm - 100 mm
Pressure: 20.7 bar - 20.7 bar

... Overview
This compact 4-inch swing check valve CV-300B provides reliable one-way water flow control for fire sprinkler systems. Designed to allow flow in the forward direction and prevent backflow, the valve ...

piston check valve
piston check valve
AKP series

Pressure: 0.1 MPa - 0.7 MPa

... Pilot Check Valve, Compact Type – AKP To enable you to make temporary intermediate stops Construct a safety circuit – With residual pressure release function as an option Fit it anywhere – As small as 15.1 mm high ...

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SMC
swing check valve
swing check valve
FSDFSCWV1

Pressure: 0 psi - 505 psi
Temperature: -58 °F - 185 °F

... The fuel swing check valve is an inline, swing flapper check valve that has many uses; one of which is to prevent reverse fuel flow from the ejector pumps to the engine feed subsystem. The ...

poppet check valve
poppet check valve
29295 series

... (19mm, 25mm and 38mm) Fits into suction hose Corrosion-resistant materials throughout Xylem’s Jabsco In-Line Non-Return Valves fit in a pump’s suction hose to aid priming and prevent backflow of water into the bilges. ...

disc check valve
disc check valve
VU series

DN: 6.3 mm - 50 mm
Pressure: 17,000,000 Pa - 50,000,000 Pa
Temperature: -25 °C - 125 °C

... Connection by screwing together the two parts Disconnection by unscrewing the two parts Standard settings 35 KPa (5 PSI) ...

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FASTER S.p.A.
shuttle check valve
shuttle check valve
TRG001

DN: 0.125 in - 1 in
Pressure: 0.5 bar - 12 bar
Temperature: -10 °C - 120 °C

... Controllable valves for compressed air control For regulating the compressed air supply to consumers ...

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BÜRKERT FLUID CONTROL SYSTEMS
ball check valve
ball check valve
VNV series

Flow rate: 38.3 l/min - 616.7 l/min

... These check valves are mainly used on vacuum gripper systems containing multiple suction pads in order to shut off individual suction pads which are not covered. Thread size M5, G1/8, G1/4, G3/8, G1/2. Applications: - ...

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CAMOZZI AUTOMATION
ball check valve
ball check valve
CVH201P65V

Pressure: 0 bar - 420 bar
Temperature: -37 °C - 204 °C
Flow rate: 1.6 l/min - 500 l/min

... psi), Parker’s poppet and ball style check valves have a simple and robust design which are used to block flow in one direction, and allow flow in the opposite. Parker’s robust poppet and ball style check ...

poppet check valve
poppet check valve
CK4 series

DN: 32, 15, 20, 25 mm
Pressure: 34.5 bar
Temperature: -50 °C - 105 °C

... The Type CK4A Check Valves prevent backward flow of fluid in refrigerant suction, hot gas or liquid lines. Parker’s CK4 check valves are designed to be close coupled to a control valve ...

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Parker Refrigerating Specialties Division
ball check valve
ball check valve
RV-06-B0.5-G

DN: 6 mm
Pressure: 500 bar

... Shut-off valves and spring-loaded seat valves from STAUFF: Check valves with metallic seal for tube installation with SP, NPT or UN/UNF female thread. Allow flow in only one direction. ...

shuttle check valve
shuttle check valve
SH1F-A3

Pressure: 0 bar - 250 bar
Temperature: -30 °C - 120 °C
Flow rate: 20 l/min

... Leak-free closing, suitable for fast cycling with long life High flow capacity In the standard version, the valve is zinc-coated for 240 h protection acc. to ISO 9227 ...

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ARGO-HYTOS
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