Check Valves

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Check Valves

Check Valves

Parker provides the industry's widest selection of check valves, available in a variety of end connections. Our valves are used in a diverse range of applications, from air and fuel systems to load holding. Our check valves utilize a variety of media including oil, air, and water and are made from materials such as aluminum, stainless steel, brass, and carbon steel. Parker check valves employ economical metal seating or zero-leak seating, with elastomer seals using a custom-molded seat design.

Parker's in line check valves are one way flow control devices used primarily in hydraulic systems to eliminate potential damage caused by fluid back pressure.
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Parker non-return valves with nominal pressure ratings up to PN 420 bar offer a wide range of types, making them very flexible.
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Parker's C Series check valves are designed for uni-directional flow control of critical fluids and gases.
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The CV-1 Series Check Valve has a machined PTFE spring that allows for low cracking pressure operation and minimal back pressure for resealing. It offers exceptional corrosion resistance and is designed for use in ultra-high purity applications.
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Capable of flows from 3.5 to 303 lpm (0.9 to 80 gpm) and pressure as high as 420 bar (6,000 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.
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Parker's pilot operated check valves series CPOM in sandwich design ensure an easy configuration of stack systems and provide a very good price-performance ratio.
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Parker non-return valves with an ISO 8434-2 (Triple-Lok®) or 8434-3 (O-Lok®) connection offer a wide range of sizes, male threads and cracking pressures, making them very flexible.
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Parker’s P.O. check valve assemblies allow flow up to 150 lpm (40 gpm) with pressures up to 420 bar (6,000 psi). Return flow can be enable by an external pilot supply, which shifts the internal poppet into an open position.
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Parker's, in line check valves are one way flow control devices used primarily in hydraulic systems to eliminate potential damage caused by fluid back pressure.
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Parker's, in line check valves are one way flow control devices used primarily in hydraulic systems to eliminate potential damage caused by fluid back pressure.
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Parker double-throttle check valves series FM in sandwich design offer an easy configuration of stack systems and provide a very good price-performance ratio. They are optionally available with a cylindrical needle for fine adjustment in NG06 and NG10.
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Parker Bestobell cryogenic lift and swing check valves are used in pipelines to prevent the backflow of the media in the storage, transportation and production of liquified gases.
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The F9 Series is a high purity, all welded check valve offering high Cv up to 0.90 in a small footprint to conserve much needed panel space. The F9 is ideally suited for semiconductor fab applications, VMB/VMP, and gas cabinet manufacturers.
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Parker direct operated check valves series C5V with SAE flange are easy to install and provide high flow rates. They can be mounted either directly on the outlet flange of pumps or on the inlet flange of actuators to achieve a very compact design.
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Parkers Colorflow C series hydraulic check valves offer superior construction and versatility with a variety of materials, sizes and ports. These one-way check valves are used in hydraulic and pneumatic applications in the mobile & industrial markets.
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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.
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Parker’s ball and poppet style check valves are cartridges designed to be inserted inside manifolds and can handle flow up to 500 lpm (132 gpm) and pressures at 420 bar (6,000 psi) for circuit optimization and space savings.
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Designed to lock hydraulic circuits or actuators in rest conditions, Parker’s dual pilot operated check valves allow bidirectional flow ranging up to 19 lpm (5 gpm) and pressure up to 207 bar (3,000 psi) after pilot pressure is supplied.
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Designed to lock hydraulic circuits or actuators in rest conditions, Parker’s dual pilot operated check valves allow bidirectional flow from 38 lpm (10 gpm) to 226 lpm (60 gpm) and pressures up to 350 bar (5,000 psi) after pilot pressure is supplied.
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Parker’s CP series pilot operated check valves are designed for maximum flow rates.
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The CV-32 Series PTFE High-flow Check Valve provides low cracking pressure and high integrity sealing for back flow protection. It is ideally suited for bulk chemical delivery systems used in ultra-high purity semiconductor manufacturing applications.
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The RSF/RSW refrigerant strainers collect foreign materials and dirt in a refrigerant system at minimal pressure drop in order to minimize damage to or prevent malfunction of control valves.

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Parker direct operated and hydraulically pilot operated check valves series C4V are robust and almost universally applicable. They are equipped with a leak-free seat cartridge.
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Parker's pilot operated check valves series ZRE are designed for maximum flow rates up to 120 l/min and long lifetime. They ensure a almost leak-free positioning of the actuator.
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Parker direct operated check valves series CM in sandwich design are predestined for an easy configuration of stack systems. A large number of options offer a multitude of uses for hydraulic switching.
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