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With the medium pressure guide body as a control energy, so as to achieve the valve opening and closing of the liquid automatic gate valve recently successfully developed. Recently, Zhejiang Super Valve Co., Ltd. "liquid automatic gate valve," the new product identification meeting, experts on the liquid-type automatic gate valve gave a high rating, that it goes beyond the electric, pneumatic, hydraulic valve actuator Control the use of energy forms, as the fourth form of control energy type valve. It is understood that the company encountered two major problems in the development process: First, medium pressure in the pipeline is not enough, can not effectively open and close the valve; Second, after the valve before the valve pressure is not enough to cause one-way action, can only open can not be closed or Can only be closed can not be opened. In order to solve the problem, the company's technicians redesigned the pipeline, cut off the connection between the return liquid and the pipeline, and connected the connection with the storage cylinder, so the return liquid compressed the spring of the storage cylinder, and all the liquid flowed into the storage cylinder In order to drive the piston to push the shutter to close the valve. At this time the valve pressure is zero, opened the connection between the storage tank and the valve after the return fluid in the storage tank spring driven by the discharge into the pipeline, which uses the storage cylinder spring pressure to solve the pressure insufficient. Pressure valve for the valve before the valve is not enough technical problems, they invented the pressure adjustment mechanism, as long as once the adjustment will always have to open and close the effect. It is understood that the product has been declared a national patent. The product has a certain energy-saving effect, to achieve a traditional mode of opening and closing the valve without the use of external energy sources such as "electricity, liquid, gas", the valve and the implementation of the integrated design of the device, reducing the size of the gate valve to achieve automation , More convenient to achieve the valve remote control. With the continuous development of the general machinery and valve manufacturing industry, some of the problems are also increasingly exposed, such as electric, pneumatic, hydraulic valve control part, the auxiliary part is greater than the executive part, and must rely on the power of the effectiveness of the West The major projects such as the East-East Transport and the South-to-North Water Diversion Project often pass non-electric areas in several provincial boundaries and can only be operated by manpower in areas without electricity. In the fields of electricity, water supply and drainage, mineral processing, chemical industry, petroleum, pharmacy, paper making, printing and dyeing and other national economy, the valves can be used only by pipeline transportation, so that people can get rid of the handwheel and realize the full valve Automatic operation.
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