Choose the compressed air system (pneumatic valve 1)

butterfly: this kind of pneumatic valve shall be lugs or IPS tubular mouth tube body of the international standard, and standardized with the pneumatic valve and pipe fittings manufacturers association of MSS - SP standard production standards; Diameter for the DN? DN impact rated working pressure for the psi of cold water, DN than pounds. Insulation inch diameter lengthen, cast iron or ductile iron body. Disc material for aluminum bronze alloy pneumatic seat and nitrile rubber seals; Pneumatic valve disc or nitrile rubber polymer coating coating. Pneumatic valve stem should be stainless steel series, pneumatic valve rod can not be exposed to the butterfly plate fasteners. Diameter of DN to DN should be configured the position of the operation of the throttle plate handle; According to size the DN above people can not have gear operator. Lug butterfly structure should be used for isolation of pneumatic valve and grooving pneumatic valve, and for the downstream pressure, need in all flange pipe end. Pneumatic valve lever operation should apply to lock in the open or closed position.
can adopt pneumatic valves: lugs pneumatic valve body and disc nibco LD - plating nodular cast iron Butterfly pneumatic valve ( Handle operator) ; LD - Butterfly pneumatic valve ( Gear operator) Lugs pneumatic valve, aluminum bronze plate nibco LD - Butterfly pneumatic valve ( Handle operator) ; LD - Butterfly pneumatic valve ( Gear operator) Tubular pneumatic valve body, the rubber coating butterfly nibco GD - Butterfly pneumatic valve ( Handle operator) ; GD - Butterfly pneumatic valve ( Gear operator)
check: ( Note: if the air compressor is reciprocating type, pneumatic valves should accept the slot in the downstream position. ） Pneumatic valve size DN should be adopted for the ground ( The wafer) Pneumatic valve plate structure, stainless steel spring, bronze, nitrile rubber seat, compliance with ASTM standard ASTM A grade B or A standard cast iron pneumatic valve body, flange class configuration or pound.
can adopt pneumatic valves: W - nibco Tile, kw, tile, or W - - W drive for pneumatic valve spring