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092021-04Low protection level: the valve motor for Denso is fully enclosed squirrel cage structure, short-time intermittent working system (10min) self-cooling type.
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262021-03The control valve is widely used in oil refining and chemical industry. It is used to control the flow rate, pressure and liquid level of the fluid in the production process...
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192021-03Working condition of high temperature including high temperature, high temperature Ⅰ Ⅱ, high temperature, high temperature Ⅲ Ⅳ, high temperature, high temperature Ⅴ level...
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292021-01Manual valve is a valve operated by handle and handwheel. It is a common valve used in equipment pipeline.Its handle, hand wheel rotation direction clockwise is closed, counterclockwise is open.
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222021-01Pre-maintenance of new valves before operation is a progressive construction concept to protect valve seat seals from seat damage during installation, welding and commissioning
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082021-01The sealing surface is the most critical working face of the valve, the quality of the sealing surface directly affects the service life of the valve
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182020-12After entering winter, the temperature drops rapidly, the valve often appears the situation of freezing.If left untreated at this point, the pipeline is vulnerable to failure.If it is in some high-risk conditions...
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112020-12The electric explosion-proof ball valve has the characteristics of simple structure, quick switching, large flow capacity, zero leakage and so on. It is suitable for the occasions of high viscosity, containing fiber and solid particle fluid.
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272020-11What does the valve arrow on the body mean?The arrow on the body indicates the recommended pressure direction of the valve, not the direction of medium flow...
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132020-11The use of pneumatic ball valves requires good maintenance of these equipment.It is also a very complicated job to maintain the equipment.It's a lot of work...
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DONGGUAN JINYING VALVE AUTOMATION TECHNOLOGY CO., LTD.
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