Hysteresis Motor,synchronous motor,used in motorised valve for HVAC system,can also supply reversible type,popular 5w 5rpm Our company is a ... are used for fan coil, damper, and zone valve (2/3-way valve)The hysteresis synchronous motors have such characteristics as the ... /6r/min 7)Outout type: Gear/Shaft 3, Hysteresis Synchronous Motor is used to HAVC system, Electric Valve, timing Set etc. Hysteresis ...