Parker offers a large collection of pilot-operated (PO) check valves, which are check valves that can be opened by an external pilot pressure. There are two types of pilot operated check valves: threaded cartridge style and pilot piston style. These pilot valves work best when used in conjunction with a control valve that vents the valve ports to tank when centered.
The Parker Legris axial valve is the only valve to incorporate both the valve and actuation function. With pneumatic or electro-pneumatic control, it avoids many of the restrictions associated with traditional actuators.
Parker 3-Way Multi-Purpose, 1/4" NPT Solenoid Valves provide operating pressures up to 400 psi and flow factors up to 0.31 CV's. They offer stainless steel or brass bodies and various coil options for all general purpose flow control applications.
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.
Parker 3-Way Normally Closed, 1/4" NPT Solenoid Valves provide operating pressures up to 250 psi and flow factors up to 0.67 CV's. They come in stainless with multiple mounting positions and coil options for all general purpose flow control applications.
Parker 3-Way Normally Closed, 1/2" NPT Solenoid Valves provide operating pressures up to 4.0 psi and flow factors up to 180 CV's. They offer a brass body, multiple mounting positions and coil options for all general purpose flow control applications.
Parker 3-Way Normally Closed, 3/8" NPT Solenoid Valves provide operating pressures of 180 psi and flow factors of 2.1 CV's. They offer a brass body, multiple mounting positions and coil options for all general purpose flow control applications.
Parker 3-Way Normally Closed, 3/4" NPT Solenoid Valves provide operating pressures of 180 psi and flow factors of 7.3 CV's. They offer a brass body, multiple mounting positions and coil options for all general purpose flow control applications.
Parker’s N5 valves are high flow / high pressure 3-way 2-position spool-type pilot-operated cartridge valves that can be used to control direction, pressure, or flow.
Parker 3-Way Normally Open, Pressure in Sleeve-Out Body, 1/4" Valves provide operating pressures up to 250 psi and flow factors up to 0.28 CV's. They offer a stainless body, multiple mounting positions and coil options for general purpose applications.
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.
Parker 3-Way Universal, 1/8" NPT Solenoid Valves provide operating pressures up to 200 psi and flow factors up to 0.38 CV's. They offer a 303 stainless body, multiple mounting positions and coil options for all general purpose flow control applications.
Parker 3-Way Universal, 1/4" NPT Solenoid Valves provide operating pressures of 50 psi and flow factors of 0.12 CV's. They offer a brass body, multiple mounting positions and coil options for all general purpose flow control applications.
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.
3-way Pilot Operated, Threaded Cartridge Spool Valves used in normally closed or normally open directional control three way circuits requiring remote pilot actuation.
Parker 3-Way Normally Open, 1/4" NPT Solenoid Valves provide operating pressures up to 235 psi (AC) and flow factors up to 0.25 CV's. They offer a brass body, multiple mounting positions and coil options for all general purpose flow control applications.
A pilot-operated, cartridge style screw-in hydraulic directional valve used in two way circuits with remote pilot actuation. Available in both normally-open and normally-closed orientation.
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 3-Way Normally Open, Pressure in Sleeve-Out Body, 1/8" Valves provide operating pressures of 150 psi and flow factors of 0.28 CV's. They offer a stainless body, multiple mounting positions and coil options for all general purpose applications.
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).
The shuttle valves for sandwich plate mounting series ZSRA and ZSRB in size NG06 are part of the wide Parker pilot control range for DIN cartridge valves.
As a part of Parker's comprehensive modular DIN cartridge system, the sandwich valve with pressure relief function series ZUDB provides maximum flexibility in building pressure functions.
The pilot valve with proportional relief function series RPDM for sandwich mounting is a part of the wide Parker pilot control range for DIN cartridge valves. It provides a fast response time and low pressure drop due to its powerful solenoid.
The pilot valves with unloading function series UR06M for subplate mounting and US06M for sandwich plate mounting in NG06 are part of the wide Parker pilot control range for DIN cartridge valves.
The pilot valves with pressure relief function series R06M for subplate mounting and RS06M for sandwich plate mounting in size NG06 are part of the wide Parker pilot control range for DIN cartridge valves.
The pilot valves with preload function series DSBA100 in NG06 are part of the wide Parker pilot control range for DIN cartridge valves. They are available in two versions for subplate mounting or sandwich plate mounting.
The pilot valve for pressure sequence function series S06M in size NG06 is a proven component of the wide Parker pilot control range for DIN cartridge valves.