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 valve setting ,the pilot

spool starts to open , Next the main spool opening because of

the pressure drop between inside and outside of main spool, 

Realize overflow from P to T. This type of valve generally has

high opening and closing rate ,very low internal leakage,Suitable 

for the hydraulic system of high pressure 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(Temperature range):-20~+100℃

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

10.安装扭矩(Installation Torque):50~55Nm

11.锁紧扭矩(Nut Tightening Torque):23~28Nm