Change without the difference of pressure
Without inner leak
Without cover abrasion
With completed stream design
Changed time is 3s, consumption 10W. It can be used for the change of air, liquid and air-liquid, special for heat pump air-conditioner unit with reclaim of the remaining heat.
Electronic expansion valve is widely applicable in automatic control and protecting loop system of air-conditioner, dehumidifier, ice maker, and other refrigeration equipment.
They are widely used for flow control in the system of central air conditioners,heating, water disposal and industrial processing.
The valve is closed when it stops working.While it works, the temperature control will give out an open signal. Then the electric valve will put through the alternating current to open the valve. The cold or hot water will then flow into the fan coil to supply the cool or heat for the room. When the room temperature reaches the set temperature, the temperature control will let the electric valve cut off the power. And the return spring closes the valve to prevent the water from flowing into the fan coil. Opening or closing the valve always keeps the room temperature in the range set by the temperature control.

Bistable Electric 4-way Valve is popular used in heat pump air conditioner, available for switching circulate path of refrigerant as to help heating or cooling.
Nominal capacity: 12/27/50/80/120RT which refer to our model type of w12/27/50/80/120
Float hermetic taper,give pretightening force on valve when in stable state, makes sealing strength between valve core and body will up to 4000N,remains big sealing strength when pressure difference between high and low pressure side is 30kgf/cm2. It can compensate automatically even material parts wear or expand with heat and contract with old. Keep inside permanent seal which ensures zero leakage within high and low pressure side.
Valve core suspend when in reversing state, there is 0.3mm gap between core and body, it will reduce wear and tear and prolong its life.
Linear passageway makes pressure drop are same as 90 elbow, reduce 70% when comparable with similar products. Keep stable flow capacity and smallest pressure drop.
Stable reversing when there is 30kgf/cm2 or pressure drop between high and low pressure side.
Consumer only when reversing, no more than 20W, cut off power automatically when reversing is over.The time of reversing is less than 4 seconds.
Flexible switching can not cause fluid strike to the system.