當P口壓力達到設定壓力后，先導閥芯首先被打開，由此產生的壓差使得

主閥芯打開，P到T實現溢流。該類型的閥一般具有較高的啟閉率,內泄漏

小，適用于高壓力、大流量的液壓系統(tǒng)

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.額定壓力(Rated pressure):230bar

2.額定流量(Rated flow):95L/min

3.開啟率(Cracking Rate) >91%

4.閉合率(Closing Rate)>85%

5.補油開啟壓力(Oil replenishment Cracking Pressure):8.5bar

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

7.油液清潔度(Cleaning code):20/18/15(NAS9)

8.工作溫度(Temperature range):-20~+100℃

9.每轉壓力變化(Pressure change per turn):54bar

10.安裝扭矩(Installation Torque):50~55Nm

11.鎖緊扭矩(Nut Tightening Torque):23~28Nm