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The structure and working principle of the electric butterfly valve
The electric butterfly valve is a valve that uses a circular disc as a starting and closing member a...
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The electric butterfly valve is a valve that uses a circular disc as a starting and closing member a...
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When some media that are easy to precipitate and contain solid particles are adjusted by ordinary va...
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The flow-opening type flows toward the opening direction, and the cavitation and erosion mainly act ...
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PVC It is polyvinyl chloride plastic with bright color, corrosion resistance, firmness and durabilit...
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By increasing the diameter of the valve to increase the working opening, the specific methods are as...
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1. Large opening work extended life method Let the regulator work as far as possible at the maximum ...
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The action of the regulating valve is unstable. The symptoms and causes are as follows: 1. The air s...
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1. Leakage of valve body and bonnet ► Reason: 1. The casting quality of iron castings is not high, a...
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When the regulating valve is made of graphite-asbestos, the lubricating oil should be added to the p...
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The cut-off valve, also called the cut-off valve, is the most widely used valve, which is mainly com...
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Pneumatic control valve is one of the widely used instruments in petrochemical enterprises. Its accu...
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The body material of the desulfurization butterfly valve is: ductile iron, cast steel, stainless ste...
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