Hysteresis Motor,synchronous motor,used in motorised valve for HVAC system,can ... zone valve (2/3-way valve)The hysteresis synchronous motors have such characteristics as the motors with ... andspeed according to customers' demands.1)AC Hysteresis Synchronous Motor,Gear or Shaft out type ,Use to ... HAVC system,AC Hysteresis Synchronous Motor1, AC Hysteresis Synchronous Motor is used to HAVC system, ...