工作原理：

当①口压力超过开启压力，油液由①流向②,反方向②到①关闭

Pressure at one pool over the cracking pressure allows 

free flow from  to ②Flow in the opposite direction from 

② to ①is blocked

技术参数：

1.额定压力(Rated pressure):315bar

2.额定流量(Rated flow):20L/min

3.开启压力(Cracking pressure):0.26bar

4.泄漏量(Internal leakage):0.07 drops/min

5.油液清洁度(Cleaning code):20/18/15(NAS9)

6.工作温度(Temperature range):-20~+100℃

7.安装扭矩(Installation torque):25~30Nm