该阀在1口和3口均有压力输入，其中较高的一端从2口输出，较低的一端关闭。

其优点是适于高压、几乎零泄漏，体积小，结构紧凑。

The valve has pressure input at both ports one and three,The higher 

pressure end is connected to port tow,The lower pressure end is 

shutting,It’s advantages are suitable for high pressure,almost zero 

leakage, small volume,and compact construction.

技术参数：

1.最高压力(Pressure Max):350bar

2.额定流量(Rated flow):20L/min

3.泄漏量(Internal leakage):<5 drops/min

4.油液清洁度(Cleaning code):20/18/15(NAS9)

5.工作温度(Temperature range):-20~+100℃

6.安装扭矩(Installation torque):25~30Nm