1.電磁換向閥electromagnetic directional valve(如果是強(qiáng)調(diào)用線圈做磁場,則為solenoid directional valve)
2. 疊加式液控單向閥stacked pilot-controlled check valve
3. 疊加式溢流閥stacked discharge valve
4. 疊加式單向節(jié)流閥stacked one-way throttle valve
5. 分流閥flow divider (valve)