Beijing Jingyi Liye Valve Co., Ltd. Industrial Valve Manufacturer Since 2008
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    Resilient Seated Butterfly Valve
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    Resilient Seated Butterfly Valve

    Rubber Wafer Butterfly Valve

    Applications

    Rubber wafer butterfly valves can be used in water conveyance systems, seawater pipeline systems, gas pipeline systems, and weak acid-base transport systems.

    Basic Information
    Size Range
    DN32-DN1200
    Temperature Range T
    0-100℃
    Maximum Allowable Operating Pressure PN
    1.0-1.6Mpa
    Pressure Rating
    1.5-2.4Mpa (Shell)
    1.1-1.76Mpa (Seal)
    Applicable Media
    Fresh water, sea water, air, weak acid base, etc
    Materials
    No. Part Material No. Part Material
    1 Valve Body Cast Iron, Stainless Steel, Cast Steel, Aluminum Bronze. 8 Worm Gear Cast Iron
    2 Valve Disc QT450 Nickel Plated, QT450 Nylon Coated, Aluminum Bronze, Stainless Steel 304, Stainless Steel 316, Stainless Steel 316L, Stainless Steel 2507, Stainless Steel 1.4469, and Stainless Steel 1.4529. 9 Bolts 45#, Stainless Steel
    3 Seat Backing Ring Phenolic, Aluminum Bronze. 10 O-Ring NBR
    4 Valve Seat (Rubber) EPDM, NBR, FTFE, Silicone, Fluoroelastomer, Heat-Resistant EPM, and Wear-Resistant EPM 11 Retaining Ring 50#Mangalloy
    5 Upper Stem 45#, 304, 316, 420 Stainless Steel 12 Thrust Washer 45#Galvanized Steel
    6 Lower Stem 45#, 420 Stainless Steel 13 Gasket 45#Galvanized Steel
    7 Retaining Rod UPVC, 45# 14 Lubricating Sleeve PTFE
    Specifications
    Specifications
    Size ØD1/ D2 4-Ø d1/d2 n-Ød3 ØD3 ØD4 H1 H2 H3 M*M L1 L2
    DN32 85.00 14 4-Ø6 36 60 48.0 98.0 11 9*9 32 30
    100.00 18
    DN40 106.00 22 4-Ø7 50 72 65.0 119.0 11 11*11 33.5 30
    DN50 120.00 21 4-Ø7 50 72 70.0 125.5 11 11*11 42 32
    125.00 21
    DN65 139.50 21 4-Ø7 50 72 81.0 140.5 11 11*11 45 47
    145.00 21
    DN80 152.50 21 4-Ø7 50 72 92.5 150.5 11 11*11 45 65
    160.00 21
    DN100 175.00 21 4-Ø10 70 92 109.5 170.5 14 14*14 52.1 91
    190.50 21
    DN125 210.00 23 4-Ø10 70 92 124.0 187.0 17 17*17 55 112
    220.00 23
    DN150 240.00 24 4-Ø10 70 92 139.5 208.5 17 17*17 56 146
    250.00 24
    DN200 295.00 24 4-Ø12 102 125 169.5 246.5 22 22*22 61 194
    298.50 26
    DN250 350.00 26 4-Ø12 102 125 201.0 285.0 22 22*22 66 242
    362.00 26
    DN300 400.00 26 4-Ø14 125 150 237.0 316.0 27 27*27 77 292
    432.00 26
    DN350 460.00 23 4-Ø14 125 150 279.0 357.0 27 27*27 77 325
    470.00 26
    DN400 515.00 26 4-Ø18 140 175 300.0 382.0 40 36*36 87 380
    525.00 30
    DN450 565.00 26 4-Ø18 140 175 320.0 409.0 40 36*36 105 428
    585.00 30
    DN500 620.00 26 4-Ø22 165 210 363.0 468.0 50 46*46 130 474
    650.00 33
    DN600 725.00 20-Ø30 4-Ø22 165 210 449.0 520.0 50 46*46 152 573
    770.00 20-Ø36
    DN700 840.00 24-Ø30 8-Ø18 254 300 501.0 623.0 70 64*64 164 673
    840.00 24-Ø36
    DN800 950.00 24-Ø33 8-Ø18 254 300 681.0 581.0 70 64*64 190 770
    950.00 24-Ø39
    DN900 1050.00 28-Ø33 8-Ø18 254 300 733.0 639.0 80 74*74 204 838
    1050.00 28-Ø39
    DN1000 1160.00 28-Ø36 8-Ø18 254 300 820.0 705.0 80 74*74 215 940
    1170.00 28-Ø42
    DN1200 1380.00 32-Ø39 8-Ø22 298 350 942.0 846.0 90 84*84 350 1101
    1390.00 32-Ø48
    Certifications
    Item Standard Optional Standard
    Design & Manufacture GB12238-89 ISO/DIN10631-91, AP1598
    Face to Face Dimension GB12221-89 ISO5752-88
    Flange Connection GB9113.1-2000, GB/T9119-2010 ANSI.B16.5, ISO7005, JIS2220:2004, DIN2532
    Valve Test GB/T13927-92 ISO/DIN 5208-87
    Valve Mark GB12220-89 ISO/DIN 5209-87
    Valve Supply Requirements GB/T12252 /
    Features
    • Tight Seal: The rubber wafer butterfly valve uses materials like EPDM, NBR, FTFE, silicone, fluorine rubber, heat-resistant EPDM, and wear-resistant EPDM, ensuring a long service life and improved sealing performance.
    • High-Strength Valve Disc: The valve disc is of a frame structure, offering high strength and the ability to withstand high flow rates. Additionally, the overall paint design effectively prevents corrosion, allowing for use with different media.
    • Bidirectional Sealing: Our rubber wafer butterfly valve has bidirectional sealing functionality and can be installed in any direction.
    • Versatile: Capable of opening and closing in pipeline systems and adjusting flow rates.
    • Cost-Effective and Low Maintenance: Our cast iron/ductile iron butterfly valves use heavy-duty materials, resulting in cost savings and minimal maintenance requirements.
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    Anthony Song
    anthony.song@bjjyly.com
    +86-10-61259058
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