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072017-11The relationship between the opening of the butterfly valve and the flow rate changes substantially linearly. If it is used to control the flow, its flow characteristics are closely related ...
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242017-10Bellows valve stem with bellows and packing a double seal structure, ensure no leakage at the valve stem seal, used in power plants, natural gas, ammonia, vacuum, refrigeration ...
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092017-10Occasionally, we can see some relatively large valves in some pipes and always install bypass valves. Why is that? What is its main function? Under what circumstances do you need to install?
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232017-09The electric ball valve is mainly composed of an electric actuator and a ball valve. The cock body is a sphere and has an action of rotating 90 degrees. Electric ball valve can not ...
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182017-09Synthetic rubber is superior to natural rubber in oil resistance, temperature resistance and corrosion resistance. General synthetic rubber temperature is not higher than 150 DEG T, natural rubber t is less...
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052017-09Installation of electric control valve precautions. The use of electric control valve should pay attention to the following aspects:control valve installed before the pipeline cleaning, remove dirt and welding slag...
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292017-08Pneumatic three piece ball valves and plug valves belong to a type of valve, only its closing piece is a sphere, the ball revolves around the center line of the valve to achieve the opening and closing of a valve...
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182017-08The working principle of pneumatic control valve is simply achieved by compressed air, and in practical applications, it is of great significance to understand the working principle of the pneumatic valve. Pneumatic control valve is the petroleum ...
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142017-08The butterfly plate of the electric butterfly valve is installed in the direction of the diameter of the pipe. In the motor butterfly valve cylindrical channel, the disc shaped butterfly plate revolves around the axis, the rotation angle ...
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102017-08In the automatic control of modern chemical plants, the control valve plays a very important role in the production of these plants depends on the correct allocation and control of the floating medium. These controls ...
