当P口压力达到设定压力后，先导阀芯首先被打开，由此产生的压差使得

主阀芯打开，P到T实现溢流。该类型的阀一般具有较高的启闭率,内泄漏

小，适用于高压力、大流量的液压系统

When the pressure at"P"reaches the valvesetting ,the pilot

spool starts to open , Next themain spool opening because of

the pressure dropbetween inside and outside of main spool,

Realizeoverflow from P to T. This type of valve generallyhas

high opening and closing rate ,very low internalleakage,Suitable

for the hydraulic system of highpressure and large flow.

1.额定压力(Rated pressure):230bar

2.额定流量(Rated flow):95L/min

3.开启率(Cracking Rate) >91%

4.闭合率(Closing Rate)>85%

5.补油开启压力(Oil replenishment Cracking Pressure):8.5bar

6.内泄漏(Internal Leakage)<10ml/min at 172 bar

7.油液清洁度(Cleaning code):20/18/15(NAS9)

8.工作温度(Temperaturerange):-20~+100℃

9.每转压力变化(Pressure change per turn):54bar

10.安装扭矩(InstallationTorque):50~55Nm

11.锁紧扭矩(Nut TighteningTorque):23~28Nm