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Pneumatic soft seat wafer butterfly valve has compact structure, easy 90° rotary switch, reliable sealing and long service life. It is widely used in water plants, power plants, steel mills, papermaking, chemical industry, food and other systems for water supply and drainage, as a regulation and cut-off use.

Product model: D671F
Nominal diameter: DN40-DN1000
Material of valve body: ductile iron, 304, 316
Connection: clamping, flanged, lug clamping
Pressure classes: PN1.0mpa, PN1.6mpa
Seat sealing: EPDM: -30℃ ~ 120℃ NBR: -30℃ ~ 80℃ PTFE: -30℃ ~ 140℃ VITON: -30℃ ~ 150℃
Valve plate quality: ductile iron nickel plating, nylon coating, aluminum bronze, 304, 316, 316L, 1.4529, 2507
Stem material: stainless steel 410, 304
Suitable medium: water, liquid, gas, oil, powder, steam, caustic medium.