Way of choose and buy pneumatic valve and pipeline design considerations

According to the use place, purpose, multi-channel pneumatic valve and understand the relevant laws and regulations, specifications, standards, guidelines and allowable approval can choose suitable for all kinds of requirements of pneumatic valves; Confirm the pneumatic valve working conditions, suitable medium, working pressure, medium temperature; Determine the match the pipeline multi-channel pneumatic valve nominal diameter: DN ( mm； Determine and pipeline connection mode: flange, ( External thread type, welding type, the wafer, the clamp, the card sets of type; To determine the pneumatic valve sealing performance requirements, multi-channel pneumatic valve seal rank or seal leakage; Determine the pneumatic valve protective coating requirements, packaging requirements, transportation requirements; Special needs of pneumatic valves should also be sure: the length of the structure, pneumatic valve height, shape, size, flow resistance, discharge capacity, flow characteristic, protection grade, explosion-proof performance parameters such as; Determine the installation position and posture of plumbing pneumatic valves; Determine the pneumatic valve operating mode: manual, multi-channel pneumatic valve worm gear, pneumatic, electric, hydraulic, electromagnetic actuator, electric hydraulic, etc. ; Confirmed the type of pneumatic valve, pneumatic valve gate, globe pneumatic valve, throttle valve, plunger pneumatic valves, pneumatic ball valve, butterfly valve, pneumatic diaphragm valve, cock pneumatic pneumatic valve, safety valve, check valve, pneumatic valve and other special hydrophobic pneumatic valve; Determine the use of pneumatic valve forms: switch model, external regulation, safe, etc. ; Determine the pneumatic valve shell and internal parts material: multi-channel pneumatic valve grey iron, ductile iron, carbon steel, alloy steel, stainless steel, copper alloy, aluminum alloy, plastic, etc.