... PPO parts, large output torque, long product life. 2, Electrical limit and machinery limit design, accurate position, avoid gear and switch. 3 ... for solenoid valve. 6, High protection class, can be worked in moistconditions. IP65 Suitable for 1, IC card meters, heat energy ... meters, air-warm valve. 2, HVAC and fire work. 3, Water equipment, uto-controlwatersystem, ...