Overview
The VD71 driver series actuators are linear actuators widely used in heating, ventilation, and air conditioning systems; Used in conjunction with two-way VEF series or three-way VSF series DN65-DN200 regulating valves.

Model List

Model size

Features
1. The automatic magnetic clutch control device can generate stable torque even when there is a pause.
2. Using gears and screws for transmission, the central gear is supported by a flat rolling bearing that wraps around the center, while the valve shaft is connected by a central screw sleeve and mosquito.
3. High strength ABS flame-retardant engineering plastic shell, waterproof and impact resistant.
4. Auxiliary manual control lever can be attached to open the valve in emergency situations.
5. Equipped with a valve position indicator, the valve opening can be observed clearly and timely.

Working Principle
The driver is driven by a reversible synchronous motor and equipped with a magnetic clutch. The motor can generate stable torque even when stopped due to the magnetic interaction between the motor rotor and clutch. Therefore, when there is no current passing through the motor, it can stably stop at any point. When the valve is fully open or fully closed, the magnetic clutch disengages and stops adjusting. The floating or proportional control signal of the controller can cause the motor to rotate clockwise or counterclockwise.

Technical Parameters
1. Control mode: Floating control
2. Motor type: Synchronous motor with magnetic clutch
3. Working voltage and power consumption 24VAC, 50/60Hz 6.5VA
4. Driving force 3000N/4000N
5. Drive time 170S
6. Gears: stainless steel, brass, plastic
7. Bracket: Cast aluminum
8. Shell: Fireproof ABS engineering plastic

Ambient temperature
Work: -5 to+55 ℃
Storage: -20 to 65 ℃, maximum relative humidity of 92%, no condensation
Attachment
Lock nut, scale ruler, scale indicator
Control signal 24V/AC
Feedback signal not available