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工作原理 DESCRIPTION |
技术参数 Specifications |
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当①口压力达到设定压力后，先导阀芯首先被打开，由此产生的压差
使得主阀芯打开，①口到②口实现溢流，该压力为一级设定压力，当 ③口施加一定压力后，①口到②口的溢流压力会相应提高，该压力为 二级设定压力。 When the pressure of port ①reaches the valvesetting ,the pilot spool starts toopen,Next themain spool opening because of the pressure dropbetween inside and outside of main spool, Realizeoverflow from port ① to port ②, This pressure is thefirst level setting one, When a certain pressure isapplied to port ③, The overflow pressure from port① to port ②will increase accordingly, This pressure is the secondary. |
1.额定流量(Rated flow):250L/min
2.一级额定压力(Primary Rated pressure):190bar
3.二级额定压力(Secondary Rated pressure):220 bar
4.开启率(Cracking Rate)>87%
5.闭合率(Closing Rate)>82%
6.油液清洁度(Cleaning code):20/18/15(NAS9)
7.工作温度(Temperature range):-20~+100℃
8.每转压力变化(Pressure change per turn):123 bar
9.安装扭矩(Installation Torque):75~80Nm
10.锁紧扭矩(Nut Tightening Torque):35~40Nm
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机能符号
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剖视图
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插孔
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压力流量曲线
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