Compressed air system of pneumatic valve selection ( 2)

- nibco W - WKW - - W or W - - W spring driven lift check
butterfly pneumatic valve pneumatic valve:
and in accordance with the pneumatic valve and pipe fittings manufacturers MSS - standardization association SP specification manufacturing; Sizing DNDN rated working pressure is impact psi of cold water, this kind of pneumatic valve shall be lugs or international pipe specification I. P。 年代。 The tubular connection pneumatic valve body. DN above is psi used as insulation heat preservation and heat insulation of pneumatic valve has inches longer diameter, material is cast iron or ductile iron. Butterfly plate is aluminum bronze alloy, configuration buna - N pneumatic seat and seal; Or buna N the butterfly plate coating with polymer coating pneumatic valve body. Pneumatic valve stem should be stainless steel series, pneumatic valve rod can not be exposed to the butterfly plate fasteners. Size DN to DN should be configured with a throttle plate handle operation; Size DN above the pneumatic butterfly valve shall be equipped with gear operators. Lugs and slot structure adjustment should be able to used as partition pneumatic valve, pneumatic valve and flange can also do not need to downstream terminal under the full pressure in the pipes. Pneumatic valve lever operation should apply to lock in the open or closed position.

can adopt pneumatic valves:
of nodular cast iron butterfly plate electroplating nibco LD - Butterfly pneumatic valve ( Handle operator) LD - Butterfly pneumatic valve ( Gear operator) Lugs pneumatic valve body.
aluminum bronze butterfly plate the nibco LD - Butterfly pneumatic valve ( Handle operator) LD - Butterfly pneumatic valve ( Gear operator) Lugs pneumatic valve body.
rubber coating GD - nibco butterfly plate Butterfly pneumatic valve ( Handle operator) GD- Butterfly pneumatic valve ( Gear operator) Tubular pneumatic valve body.

check pneumatic valve should be located in accept downstream groove. Check the pneumatic valve: note: if the air compressor is reciprocating type.
and configure the stainless steel spring, size of DN above check pneumatic valve plate type should be used ( The wafer) Structure. Bronze pneumatic disc plate, buna - N pneumatic valve seat, in line with the level of the American association of data test ASTMA B specification or A cast iron pneumatic valve, flange class configuration or level.

can adopt pneumatic valves: