HWF2000A series 2-way motorized valve are designed to modulate the room temperature by controlling the flow of hot/chilled medium (liquid, air) in the central air-conditioner water system.
 

The valve is droved by in-phase motor and restored by a balance spring. The default situation is closed. When the thermostat sends out a signal of "open", the motor will drive the valve open. Then the chilled/hot water will go through pipeline coils (FCU) and cool/warm air will be offered to the room by the operation of the fan. And when the temperature reaches to the setting point, the thermostat will send out a single of "close". The balance spring will restore the valve back to close situation. Then the cool/hot water supply will be cut off.
 

Feature:
1. All valves conform with the European Pressure Equipment Directive PED97/23/EC
2. All actuator conform with the protection requirements of Counsel Directive 89/336/EEC relating to electromagnetic compatibility (EMC)
3. Forging brass body
4. Die-cast aluminum alloy base and fire retardant ABS shell
5. NBR sealer
6. Valve body and actuator are linked by tight lock connection. Valve actuator can be 7nstalled to and disassembled from valve body conveniently.
7. One-way hysteresis synchronous drive
8. Low power consumption and small working noise