Sell Flange Compensating Butterfly Valve

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Product Origin:China
Brand Name:Shanghua
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Certification:ISO900, CE, API
Description:Features: 1) The butterfly valve not only stretches itself along axial direction, but also compensates the offset caused by butt joint different spindles in a certain range and is great easily assembled or dismantled 2) It is used in on-off and control flow of media in pipelines such as foodstuff, beverage, medicine, industries, water treatment, building, water supply and drainage 3) They can be operated by worm gear, and pneumatic electric actuator 4) Adoptive standards a) Flange dimension: GB/T9113.1-2000, GB/T17241.6-1998, JB/T82.1-1994 b) Face-to-face dimension: GB/T12221-1989 c) Test pressure: GB/T13927-1992 5) Specifications: a) DN (mm): 50 - 1200 b) PN (Mpa): 0.25/0.6/1.0 c) PS (Mpa) i) Shell test: 0.375/0.9/1.5 ii) Seal test: 0.275/0.66/1.1 6) Suitable media: water, steam, oil, coal gas, natural gas, sewage, corrosive media 7) Suitable temperature: -40°C - 200°C 8) Main parts materials a) Body: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, HT250, QT450-7 b) Disc: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, HT250, QT450-7 c) Shaft: 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 2Cr13 d) Seal: UR, NBR, EPDM, FPM Inner packing: NBR, gentle graphite, V type rubber pad PTFE