The pneumatic wafer butterfly valve can be used in the field where the space is relatively narrow and the pipeline distance is short.Pneumatic butterfly valve use a "U" shaped stainless steel ring, the precision of the elastic sealing ring and after polishing disc three-dimensional eccentric contact, solve the traditional eccentric butterfly valve in the opening and closing 0 ° ~ 10 ° seal face is still in the sliding contact friction moment of ills, realize the butterfly plate in open the instant sealing surface, the separation, close contact with the sealing effect and prolong the service life, good sealing performance zui purpose.Widely used in metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas, water supply and drainage and other corrosive media pipelines, is a good zUI device to regulate flow rate and cut off fluid.

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.