哈威比例减压阀，德国哈威比例减压阀
The proportional pressure reducing valves type KFB is used
for a stepless remote control of hydraulic actuators, which
respond proportional to variations of the control pressur
e (range 1 to 30 bar). They are ideally suited for the
remote control of directional spool valves type PSL and PSV acc.
to D 7700 ++. Two directly actuated pressure reducing
■ 带行程监控的截止式换向阀： D 7300 H
First section: With ports P, R, A and B
Centre sections: Max. 8 sections in total
(ports A and B)
End section: Concludes the valve bank
(ports A and B)
End section: Concludes the valve bank
(ports P, R, A and B)
配套阀组：
■ VB 型阀组： 页
配套元件插头：
■ 带发光二极管： D 7163
■ 带自耦变压电路： D 7813, D 7833
同见“特殊应用领域的液压元件”章节：
– 防爆设备用的元件（符合 ATEX）
– 元件压力至 700 bar
相关技术数据表：
■ 截止式换向阀： D 7300
■ 带标准连接图的截止式换向阀
(CETOP3, NG 6)： D 7300 N
valves, one for each switching direction, are combined
in one housing. They supply a control pressure at one of
the two outlet ports (to the hydraulic actuators),
which is dependent of the movement direction and p
roportional to the elevation of
the hand lever but independent of the inlet pressure.
While one of the outlet ports is pressurized the other
port is depressurized to the tank.
The proportional pressure
