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Selection principle of pump accessories

Jan 31, 2019

When selecting pump accessories, first consider the specific workplace, application requirements, etc. The second is to confirm the working conditions of the valve, the applicable medium, working pressure and medium temperature; and to determine the nominal diameter matching the pipe, determine the way to connect with the pipe: flanged, inner (outer) threaded, welded , clip type, clamp type, ferrule type, etc.


Next, the drive mode should be determined in the application of the valve fittings, such as manual, worm gear, pneumatic, electric, hydraulic, electromagnetic, electrohydraulic, etc. Also pay attention to confirm the type of valve, gate valve, globe valve, throttle valve, plunger valve, ball valve, butterfly valve, diaphragm valve, plug valve, etc., to determine the use of the valve: switch type, adjustment type, safety type.


In addition, the important components of the valve fittings - the material selection of the valve housing and the internal parts, carbon steel, alloy steel, stainless steel, ductile iron, gray cast iron, copper alloy, aluminum alloy, plastic, etc., should be determined. It is to determine the protective coating requirements, packaging requirements, transportation requirements of the valve, determine the sealing performance requirements of the valve, and the sealing level.