Stainless steel motorized ball valve is an integration of mechanical and electrical product, using two-way permanent magnet synchronous motor which drives gearbox steady rotation, at the same time , designs a signal of the output that made automation controlling more precise. Because of the motor electric in a short time, it will not be overheated. The valve body selects stainless steel, and the seal part bears seal automatic and has the function of automatic conmpensation, which prolong the service life of product. Its life is detected by the CMA, and the result of the test is that the life-span of the valve is above 500,000 times without break down.. Its also able to bear high temperature and high pressure, and anti-humidity, etc. It widely using in flow control of central air-conditioning, heating equipment, also using in fluid of industrial,chemical and purification systems.