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Forged steel valve purchase notes
Buy forged steel valve Notes: 1, according to the use of places, uses, and understand the relevant laws and regulations, specifications, standards, guidelines, permits recognized after the valve can be used for a variety of requirements; 2, confirm the valve working conditions for the media, Working pressure and medium temperature; 3. Determine the nominal diameter matched with the pipe: DN (mm), NPS ("); 4. Confirm the connection with pipe: Flange type, 5, determine the valve operation of the drive: manual, worm gear, pneumatic, electric, hydraulic, electromagnetic, electro-hydraulic, etc .; 6, confirm the type of valve : Valve, globe valve, throttle valve, plunger valve, ball valve, butterfly valve, diaphragm valve, plug valve, check valve, safety valve, steam trap, pressure reducing valve and other special valves; 8, to determine the valve housing and the inner parts of the material: carbon steel, alloy steel, stainless steel, ductile iron, gray cast iron, copper alloy, aluminum alloy, plastic, etc .; 9, to determine the valve Sealing performance requirements, sealed Grade or seal leakage; 10, to determine the valve protective coating requirements, packaging requirements, transport requirements; 11, the special needs of the valve should also be determined: the length of the structure, the valve height, dimensions, flow resistance, discharge capacity, flow characteristics , Protection grade, explosion-proof performance and other parameters; 12, to determine the valve installation position and posture.