Automatically reduces power once fully open or fully closed; This reduces likelihood of overheating . Long service lifeMore than 100,000 circles. This compact motorized valve is used for specific applications in air or geothermal heat pumps, drinking water systems, solar water heaters and other industrial equipment. This floating ball construction type ball valve requires very low torque and can be controlled with a small compact actuator. After-sales service, Please contact if you have any questions., Manufacturer: DMETE