Hysteresis Motor,synchronous motor,used in motorised valve for HVAC system,can also supply reversible type,popular 5w 5rpm Our ... Synchronous Motor,Gear or Shaft out type ,Use to HAVC system,AC Hysteresis Synchronous Motor1, AC Hysteresis Synchronous Motor is ... Gear/Shaft 3, Hysteresis Synchronous Motor is used to HAVC system, Electric Valve, timing Set etc. Hysteresis Motor for Motorized Valve