當(dāng)P口壓力達(dá)到設(shè)定壓力后，先導(dǎo)閥芯首先被打開(kāi)，由此產(chǎn)生的壓差使得主閥芯打開(kāi)，P到T實(shí)現(xiàn)溢流。該類(lèi)型的閥從T到P始終關(guān)閉，反向可以承受較高的背壓，適用于回油背壓較大的液壓系統(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 always locked from T to P, Reverse can withstand high back pressure Suitable for the hydraulic system of high back pressure from T to P.

1.額定壓力(Rated pressure):280bar

2.額定流量(Rated flow):100L/min

3.開(kāi)啟率(Cracking Rate):≥88%

4.閉合率(Closing Rate):≥83%

5.油液清潔度(Cleaning code):20/18/15(NAS9)

6.工作溫度(Temperature range):-20~+100℃

7.每轉(zhuǎn)壓力變化(Pressure change per turn):313bar                           

8.安裝扭矩(Installation Torque):45~55Nm

9.鎖緊扭矩(Nut Tightening Torque):10~12Nm