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Pneumatic desulphurization butterfly valve is a butterfly plate rotary center (that is, the valve shaft center) located in the center line of the valve body and butterfly plate on the sealing section of the butterfly valve, the connection mode is sandwich-type and flange type.Pneumatic desulphurization butterfly valve fluid resistance is small, large diameter butterfly valve full open effective flow area is large, quick opening and closing labor saving, using compressed air to drive disc rotation 90 Angle to complete the opening and closing, can also be assembled on the electric valve positioning of the medium flow, pressure, temperature and other parameters to adjust and control.

Product model: D641F
Nominal diameter: DN50-DN1200mm
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.