當(dāng)P口壓力上升到一定水平，由于閥芯內(nèi)外的面積差使得該閥芯相當(dāng)于閥座被打開(kāi)，P到T開(kāi)始溢流。因閥芯內(nèi)外均為高壓，打開(kāi)的過(guò)程比較平緩，該結(jié)構(gòu)具有多級(jí)開(kāi)啟功能，緩沖效果很好，一般成對(duì)用于回轉(zhuǎn)馬達(dá)。

When the pressure at "p" rises a certain level Due to the area difference between the inside and outside of the spool,It is opened relative to the valve seat, Starting to overflow from P to T,Because the spool inside and outside are high pressure both, the process of opening is relatively smooth,The structure has multi-level open function and excellent buffer effect ,Commonly used in pairs for rotary motors.

1.額定壓力(Rated pressure):350bar

2.額定流量(Rated flow):60L/min

3.開(kāi)啟率(Cracking Rate) ≥85%

4.閉合率(Closing Rate)≥80%

5.內(nèi)泄漏(Internal leakage)≤100ml/min at 262.5 bar                          

6.油液清潔度(Cleaning code):20/18/15(NAS9)

7.工作溫度(Temperature range):-20~+100℃

8.安裝扭矩(Installation Torque):35~40Nm