Pilot Operated Cartridge Pressure Reducing Valve with internal pilot and internal spring chamber drain, intended as a secondary circuit pressure regulating device.
DN8 Pilot Operated Cartridge Pressure Reducing Relieving Valve
JPP08-01
Product Introduction：
The JPP08-01 is a pilot operated, sliding spool, adjustable cartridge type pressure reducing relieving valve. This Pilot Operated Pressure Reducing Relieving Valve maintains a constant secondary (lower) pressure in hydraulic subsystems regardless of pressure variations in the primary system. In addition to the reducing function, this valve also provides a flow path from the reduced pressure port to the tank port. If pressure in the secondary circuit exceeds the desired pressure, the valve opens this flow path to relieve excess pressure to tank.
OPERATION：
JPP08-01 Pilot Operated Pressure Reducing Relieving Valve, in steady state, allows oil flow in both directions ② and ①, while the spring chamber is kept draining at port ③. When the pressure at ① reaches the preset value of the valve, the valve core moves to limit the oil flow at ②, thereby regulating the pressure at ①. In this mode, the valve can also drain oil from ① to ③.
Flow path: When reducing pressure: from ② to ①; when overflowing: from ① to ③.
FEATURES：
The regulator ensures that the spring will not be compacted.
The adjusting device will not screw out of the valve body.
Optional optional pressure range up to 207bar(3000psi).
The valve core and valve sleeve are hard to handle and durable.
Industrial conventional valve hole.
Compact structure, small size and light weight
SPECIFICATIONS：
Max.Working Pressure:210bar（3000psi）
Pressure: 390bar(5700psi)
Flow:See performance curve.
Pilot Orifice: 0.5mm(0.020 in)
Standard Pressure Range（(Decompression Function)）:
6.9 ~ 27.6 bar (100 ~ 400 psi)
10.3 ~ 103 bar (150 ~ 1500 psi)
27.6 ~ 270 bar (400 ~ 3000 psi)
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.
CHARACTERISTIC：
DIMENSIONS：
Application Areas Of Pressure Reducing Valves：
Engineering machinery: In hydraulic systems of equipment such as excavators and loaders, pressure reducing valves are used to control the working pressure of actuators to ensure smooth and reliable operation.
Machine tools: In various machine tools, pressure reducing valves provide stable pressure for hydraulic feed systems and spindle systems to improve machining accuracy and surface quality.
Ship: Pressure reducing valves are used in hydraulic steering gears, cargo cranes and other systems of ships to ensure the normal operation and safety of equipment.
