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          PRODUCTS
          PRODUCTS
          YOUR LOCATION£ºHOME >> PRODUCTS >> Butterfly Valve Series >> wafer butterfly valve
          PRODUCT DESCRIPTION£º
          wafer butterfly valve
          PRODUCT DETAILS£º

          General of Butterfly valve

          Butterfly valve is a type of valve which can be used in a variety of chemical services. They are available with small dimensions allowing for use in areas where space is limited, and they allow a high coefficient of flow. A butterfly valve is composed of body, soft seat or hard seat, disc, stem, packing, notched position plate, and a lever or gear. The seat is under compression when it is mounted in the valve body, thus making a seal around the periphery of the disc both upper and lower points where the stem passes through the seat. Packing is provided forming a positive seal around the stem for added protection in case the seal formed by the seat could become damaged.

          Wafer Soft Seat Butterfly Valve

          Product Description

          Size: DN25-DN1200
          Body: Cast Iron, Ductile Iron
          Disc: Stainless Steel, Cast Iron, Ductile Iron
          Seat: PTFE, BNR, EPDM, VITON
          Stem: Stainless Steel 304/316/416
          Packing: Soft graphite
          Hand Lever/Gear: Cast Iron or Ductile Iron
          Woking pressure: PN10, PN16
          Top Flange: ISO 5211
          Flange drilling standard: BS4504, ANSI B16.5, JIS, DIN2501
          Surface: Electric Fussion Epoxy Powder Coated.

          Nominal diameter

          DN(mm)

          50-700

          Nominal pressure

          PN(MPa)

          0.6

          1.0

          1.6

          2.5

          4.0

          Ps(MPa)
          Test pressure

          lntensity Test

          0.9

          1.5

          2.4

          3.75

          6.0

          Seal test

          0.66

          1.1

          1_76

          2.75

          4.4

          Air Test

          0.6

          0.6

          0.6

          0.6

          0.6

          applicable Medium

          Water, steam, oil products, corrosive acid, etc.

          Applicable Temperature

          Carbon steel: -29-425 Stainless steel: 40-600

          Material of Main Parts


          Parts name

          Material

          Body

          Cast steel, stainless steel, Cr-Mo steel, special material

          Disc

          Cast steel, alloy steel(Cr plated), stainless steel, Cr-Mo steel, special material

          Seal ring

          Stainless steel, anti-wearing material

          Stem

          2Crl3, 1Crl3Stainless steel, Cr-Mo steel

          Packing

          Flexible graphite

          Main connection dimension

          DN

          Main outline dimension

          1.0MPa

          1.6MPa

          2.5MPa

          L

          H

          H0

          A

          B

          D0

          n-d

          D0

          n-d

          D0

          n-d

          50

          43

          63

          235

          270

          110

          110

          4-14

          125

          4-18

          125

          4-18

          65

          46

          70

          250

          270

          110

          130

          4-14

          145

          4-18

          145

          4-18

          80

          46

          83

          275

          270

          110

          150

          4-18

          160

          8-18

          160

          8-18

          100

          52

          105

          316

          270

          110

          170

          4-18

          180

          8-18

          180

          8-18

          125

          56

          115

          340

          310

          110

          200

          8-18

          210

          8-18

          210

          8-18

          150

          56

          137

          376

          310

          110

          225

          8-18

          240

          8-22

          240

          8-22

          200

          60

          164

          430

          353

          150

          280

          8-18

          295

          8-22

          295

          12-22

          250

          68

          206

          499

          353

          150

          335

          12-18

          350

          12-22

          355

          12-26

          300

          78

          230

          570

          380

          150

          395

          12-22

          400

          12-22

          410

          12-26


          ZHONGCHENG VALVE GROUP CO.,LTD.
          E-mail: sales@zc-valve.com Tel£º+86-577-67331552
          一本一道波多野结衣无码

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