1. Electric Valve Actuator    电动执行机构
2. Multi-turn and Quarter-turn part-turn    多回转和四分之一回转，部分回转
3. indication contacts    反馈触点？
4. ated torque    额定力矩
5. trip and deenergise the motor    跳闸和断电电机
6. Jammed valve protection    阀门堵转保护
7. stall    失速
8. Non-intrusive     非侵入
9. maintained or inching operation    保持或电动操作

阀门相关英语