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Valve selection

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Valve selection

Source:Update Time:2014-04-11Hits:
1, clear the valve in the use of equipment or device, to determine the working conditions of the valve: applicable media, working pressure, temperature etc.. 2, to determine the nominal pipe is connected with the valve size and connection: flanged, threaded, welding etc.. 3, determine the valve operating modes: manual, electric, electromagnetic, pneumatic or hydraulic, electrical or electro-hydraulic linkage such as linkage. 4, according to the selected items within the valve casing and the material temperature pipeline transmission medium, working pressure,: ceramics, grey cast iron, malleable cast iron, ductile iron, carbon steel, alloy steel, stainless steel, copper alloy etc.. 5, select the type of valve: closed valves, regulating valves, safety valves. 6, determine the form of valve: valve, ball valve, butterfly valve, the cut-off valve, throttle valve, safety valve, reducing valve, steam trap valve. 7, to determine the parameters of the valve: the automatic valve, depending on the need to determine the flow resistance to allow the discharge capacity, pressure, etc., and then determine the nominal pipe diameter and the valve seat hole diameter. 8, valve used to determine the geometric parameters: the length structure, form and size of flange connection, opening and closing the valve after the size of the height direction, connection bolt hole size and number, the entire valve size etc.. 9, using the existing data: valve product catalog, product samples and other valves select the appropriate valve products.

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