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Wafer Butterfly Valve PTFE Sealing

Wafer Butterfly Valve PTFE Sealing

Size:2-8″(DN50-DN200）Pressure:PN10,PN16,Class150Body Materials:Cast Iron, Ductile Iron, WCB , Stainless Steel, BronzeDisc Materials:Ductile Iron, WCB,CF8,CF8M,Al-bronze C958Seat Materials:NBR, EPDM, VITON, PTFEApplicable Medium:Water,Oil

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Description

Product Introduction
No. Parts Materials
1 Body Cast iron, Ductile iron, Carbon steel, Stainless steel
2 Disc Ductil iron+Nickel plated, Stainless steel, Aluminium bronze
3 Stem Stainless steel
4 Bushing PTFE, Lubricated bronze
5 Seat EPDM, NBR, Neoprene, Viton, PTFE
6 Pin Stainless steel
7 O-ring EPDM, NBR
Product Features
  1. Simple structure, small external size, short structure length, small volume, light weight, suitable for large diameter valves.
  2. When fully open, the effective flow area of the seat channel is large and the fluid resistance is small.
  3. Convenient opening and closing, fast, good adjustment performance.
  4. The opening and closing moment is small, because the butterfly plate on both sides of the rotating shaft is basically equal to the action of the medium, and the direction of the torque is opposite, so the opening and closing is less effort.
  5. Sealing surface materials are generally rubber and plastic, so the low-pressure sealing performance is good.
Technical Parameters
Size H1 H2 H3 φA φB L φ PN10 PN16 150LB JIS10K
DN IN PCD n-φd PCD n-φd PCD n-φd PCD n-φd
DN40 1.5″ 65 128 32 110 95 33 12.7 110 4-φ18 110 4-φ18 98.5 4-φ16 105 4-φ19
DN50 2″ 75 129 32 125 105 43 12.7 125 4-φ18 125 4-φ18 120.6 4-φ19 120 4-φ19
DN65 2.5″ 82 136 32 145 127 46 12.7 145 4-φ18 145 4-φ18 139.7 4-φ19 140 4-φ19
DN80 3″ 99 153 32 160 145 46 12.7 160 8-φ18 160 8-φ18 152.4 4-φ19 150 8-φ19
DN100 4″ 110 167 32 190.5 165 52 15.8 180 8-φ18 180 8-φ18 190.5 8-φ19 175 8-φ19
DN125 5″ 125 193 32 216 200 56 18.9 210 8-φ18 210 8-φ18 215.9 8-φ22.4 210 8-φ23
DN150 6″ 145 209 32 241.3 225 56 18.9 240 8-φ22 240 8-φ22 241.3 8-φ22.4 240 8-φ23
DN200 8″ 170 251 40 298.4 280 60 22.2 295 8-φ22 295 12-φ22 298.4 8-φ22.4 290 12-φ23
DN250 10″ 210 280 45 361.9 350 68 28.6 350 12-φ22 355 12-φ26 361.9 12-φ25.4 355 12-φ25
DN300 12″ 240 315 45 431.8 400 78 31.6 400 12-φ22 410 12-φ26 431.8 12–φ25.4 400 16-φ25
DN350 14″ 260 348 45 476.2 445 78 31.6 460 16-φ22 470 16-φ26 476.2 12-φ28.4 445 16-φ25
DN400 16″ 295.5 392.5 52 540 510 102 33 515 16-φ26 525 16-φ30 539.7 16-φ28.4 510 16-φ27
DN450 18″ 322.5 401.5 52 585 565 114 38 565 20-φ26 585 20-φ30 577.8 16-φ31.8 565 20-φ27
DN500 20″ 362.5 451.5 64 650 620 127 41 620 20-φ26 650 20-φ33 635 20-φ31.8 620 20-φ27
DN600 24″ 428.5 541.5 70 770 725 154 50.5 725 20-φ30 770 20-φ36 749.3 20-φ35.1 730 24-φ33
Technical Standard

Design and manufacture: EN593, API609
1.Face to face dimension: EN 558-1 Series 20, API 609
2.Flange end: EN1092-2 PN10/16, ANSI B16.1, BS10 Table D/E
3.Top flange: ISO5211
4.Size range: DN40 – DN600
5.Max. working pressure: 1.0/1.6 Mpa
6.Inspection test: EN12266
7.WWorking temperature: EPDM ≤ 120°C, NBR ≤ 80°C
8.Suitable medium: water, oil and gas
9.Operator: Lever, gearbox, electric or pneumatic actuator.

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