... Motor,synchronous motor,used in motorised valve for HVAC system,can also supply ... for fan coil, damper, and zone valve (2/3-way valve)The hysteresis synchronous motors have such ... approved. Features: 1) Can be stalled continuously without any damage to motor2) Have spring return function ... Hysteresis Synchronous Motor is used to HAVC system, Electric Valve, Riming Set etc. 2)Input Power: ≤ 6 ...