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.
Parker non-return valves with nominal pressure ratings up to PN 420 bar offer a wide range of types, making them very flexible.
Parker's C Series check valves are designed for uni-directional flow control of critical fluids and gases.
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.
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.
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.
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.
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.
Parker's in line, swing check valves are designed to protect low pressure air, liquid, or gas systems from fluid back pressure.
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.
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.
The CK-2D valves are employed as a low pressure drop, gas-powered suction stop valve for low temperature evaporators. These valves are used for suction stop and evaporator equalization following a defrost cycle.
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.
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.
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.
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.
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.
The Type CK1 Check Valves prevent backward flow of fluid in refrigerant suction, hot gas or liquid lines.
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.
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.
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.
The Type CK4A Check Valves prevent backward flow of fluid in refrigerant suction, hot gas or liquid lines.
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.
The CK-2D valves are employed as a low pressure drop, gas-powered suction stop valve for low temperature evaporators. These valves are used for suction stop and evaporator equalization following a defrost cycle.
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.
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 MAC Series (Ball and O-Ring) Check Valves provide unidirectional flow and shut-off for liquids and gases in medium pressure systems up to 15,000 PSI. These check valves utilize integral MPI Tube Fittings for a secure connection.
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.
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.
The CK-5 gas-powered suction stop valve provides the normal operating features of the R/S CK-2 suction stop valve and features a built-in failsafe to close the valve until pressure is equalized in the event of a power loss.
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.
The CK-3 check valve prevents backward flow of high pressure refrigerant gases and liquid.
The CK-6D is a suction stop valve for hot gas defrost applications. This normally open valve features dual solenoids for equalization and a pressure regulator to prevent the valve from opening during defrost in the event of a power loss
Parker’s CP series pilot operated check valves are designed for maximum flow rates.
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.
Parker’s CH series check valves provide free flow in one direction and blocked flow in the reverse direction.
Parker’s CM series check valves is an integral, full flow check valve.
Parker’s LO & LOA are Pilot Operated Check Valves that are designed to lock a cylinder, or part of a circuit, without leakage while a control valve is in the neutral position.
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.
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.
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.
Parker direct operated and hydraulically pilot operated check valv Parker’s poppet style check valve with thermal relief allow flows up to 130 lpm (40 gpm) and pressure to 420 bar (6,000 psi), with thermal relieving in the reverse direction to protect the circuit from high hydraulic fluid thermal expansion pressures. s series C4V are robust and almost universally applicable. They are equipped with a leak-free seat cartridge.
Parker’s 2-position, 2-way normally-closed manual poppet valves are available with stem, knob, or lever actuators and are capable of flows up to 49 lpm (13 gpm) and pressures as high as 210 bar (3000 psi).
Parker’s P.O. check valve’s allow flows up to 226 lpm (60 gpm) and pressure up to 350 bar (5,000 psi). Return flow can be enable by an external pilot supply, which shifts the internal poppet into an open position.
The hydraulically pilot operated check valve for subplate mounting series SVLA in size NG06 is proven part of the wide Parker pilot control range for DIN cartridge valves.
Parker's high performance non-return valves can offer the user a cold working pressure rating up to 10,000 psi/689 bar maximum, with a cracking pressure of 10 psi maximum.
Parker's throttle check valves series ZRD in sandwich design feature maximum flow rates up to 160l/min and enable an easy configuration of stack systems.
Parker check valves series SPZBE in size NG16, NG25 and NG32 are proven slip-in cartridge valves. Key advantage of this robust valve: the little space which is required for installation.
Parker check valves designed for “reverse” flow from the side port (port 2) to the end port (port 1) from 19 to 500 lpm (5 to 132 gpm) and pressures up to 420 bar (6,000 psi), allowing manifold space optimization while achieving superior performance.
The screwable check valves series RK and RB are designed to go into simple, threaded cavities. They block the flow in one direction and open in the opposite direction.
The Parker Bestobell Automatic Sensing Pressure Reversing Obturator (ASPRO) is a concept that addresses the issue of back contamination from high-pressure carbon dioxide cylinders removing the opportunity for gas contamination.
Hydraulically pilot operated check valves series RH for in-line mounting allow free flow in one direction (B to A). The counter flow (A to B) is blocked leak-free.
Pilot-to-close check valves operate as standard check valves, but block flow completely when a pilot signal is supplied; capable of flows up to 38 lpm (10 gpm) and pressures up to 240 bar (3,500 psi).
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 and gases, especially in high temperature or “sticky” applications.
The hydraulically pilot operated check valve series SVLB is based on Parker's comprehensive modular DIN cartridge system. It is mainly used to shut-off the cylinder.
Parker Conflow’s Code 103 is a pressure check valve range that enables individual checks of hydraulic pressure on each leg and ram on powered roof supports of coal faces.
Parker Conflow’s Code 11 is a check valve that is used in water dust suppression systems that keeps the pipelines "charged" with water so that the spray heads energise instantaneously when the supply valve is turned on.
Parker Conflow's Code 1431 is an inline check value that permits movement of flow media, oil, water or air in one direction only in water dust suppression systems on mining cutting machines.
The shuttle valve series SSR is designed as a threaded cartridge valve. All parts are assembled in one unit and easy to mount.
Parker's direct operated check valves series ZRV in size NG06 (CETOP 03) and NG10 (CETOP 05) are equipped with a cartridge type insert to ensure zero leakage and high lifetime.
The check valve series C1DB is a ready-for-use cartridge valve using proven components of Parker's modular DIN cartridge system. It provides a wide range of options and is particularly suitable for a compact manifold block installation.
Parker's blocking valves prevents damage to work and equipment in the event of a loss of pressure.
Slow start fittings protect your system by preventing sudden shocks. On start up, they control the pressure increase in the downstream circuit which helps prevent the risk of industrial accidents.
