Pilot Operated Check Cartridge Relief Valve is equipped in hydraulic unit as pressure reliefvalve and one-way check valve, it is low noise, sensitive pressure response and large flow rate, betterto replace modular valve in a compact desiqned valve block.
DN20 Pilot Operated Poppet Type Check Cartridge Relief Valve
JRPC20-01
PRODUCT INTRODUCTION
Pilot Operated Check Cartridge Relief Valve designed to a combination of pilot operated pressurerelief function and check function in a one valve. The Pilot Operated Check Cartridge Relief Valve ismostly used for the occasion of changing loading direction, such as mounted in the line of connectionwith cylinder. When the cylinder piston is pressed, the Pilot Operated Check Cartridge Relief Valve will help toprevent overload in the chamber of cylinder. lf the cylinder is pushed forwarder, the reverse fluid willflow through with minimum pressure different by pilot operated relief cartridge valve, avoiding vacuumphenomenon in the cylinder, it is also called overflow, prefill valve.
Pilot Operated Check Cartridge Relief Valve is equipped in hydraulic unit as pressure reliefvalve and one-way check valve, it is low noise, sensitive pressure response and large flow rate, betterto replace modular valve in a compact desiqned valve block.
FEATURES：
Zero outer leakage, dirt oil tolerant
Valve Threaded：M24×1.5
The valve core and valve sleeve are hard to handle and durable.
Industrial conventional valve hole.
Respond to pressure changes quickly and smoothly.
SPECIFICATIONS：
Max.Working Pressure:315bar（4568psi）
Flow:See performance curve.
Internal leakage:Under the opening pressure of 75%, the leakage is ≤10mL/min.
Opening Pressure Definition:Pressure measurement when the flow reaches 2.5% of the nominal flow.
Clossing Pressure:90% of opening pressure
Reverse Opening Pressure: ≤2.5bar(36psi)
Filtering Accuracy: 25 μ m.
Service Temperature:-40℃~ 120℃(NBR),-26℃~ 204℃(FKM)
Medium: Mineral oil with viscosity of 7.4 ~ 420 CST (50-2000) ssu or synthetic oil with lubricating function.
Standard Pressure Range: 10 ~ 60 bar (145 ~ 870 psi)
55 ~ 130 bar (798 ~ 1885 psi)
110 ~ 210 bar (1595 ~ 3045 psi)
100 ~ 315 bar (1450 ~ 4568 psi)
CHARACTERISTIC：
DIMENSIONS：
Application Areas:
Hydraulic transmission system: used to adjust and stabilize system pressure, prevent system overload, and protect hydraulic components from damage caused by excessive pressure. For example, in machine tool hydraulic systems, injection molding machine hydraulic systems, etc., the pilot oil-supply relief valve can ensure that the system can maintain stable pressure at different working stages.
Engineering machinery: such as excavators, loaders, cranes, etc., these equipment need to frequently change the working pressure and flow during operation. The pilot oil-supply relief valve can adjust the system pressure in time according to work needs to ensure the safe and efficient operation of the equipment.
