DODOMACH PNEUMATIC

Butterfly Valves

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  • Wafer Type Butterfly Valve

    • Wafer Type Butterfly Valve

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    Wafer Type Butterfly Valve dimension drawing

    Product Details

    The Wafer Type Butterfly Valve is a resilient seated concentric butterfly valve for compact installation between pipeline flanges. It is suitable for shut-off and flow regulation in water, wastewater, seawater, air, vapor, food, medicine, oil, acid, alkali, salt, and other compatible pipeline systems.

    Features

    • Wafer body design for compact installation between flanges.
    • Small and light structure for easy installation and maintenance.
    • Quarter-turn operation with low operating torque.
    • Resilient sealing design for reliable shut-off performance.
    • Available with manual, worm gear, pneumatic, and electric actuation.
    • Wide material selection for different compatible media.

    Technical Data

    Item PN 1.0 PN 1.6 Unit
    Nominal Diameter 50 (2") – 1000 (40") 50 (2") – 800 (32") mm (inch)
    Nominal Pressure 1.0 1.6 MPa
    Shell Test Pressure 1.5 2.4 MPa
    Sealing Test Pressure 1.1 1.76 MPa
    Working Temperature -15 deg C to +150 deg C, depending on seat material
    Suitable Medium Fresh water, sewage, sea water, air, vapor, food, medicine, oils, acids, alkalis, salts, etc.

    Product Standards

    Item Standard
    Product Standard GB/T12238-2008 General Purpose Industrial Valves – Flanged and Wafer Butterfly Valves
    Pressure Test Standard GB/T13927-92 Pressure Test for General Purpose Valves

    Material of Main Parts

    Part Material Code
    Body Grey cast iron Z
    Body Ductile iron Q
    Body Aluminum bronze T
    Body CF8 stainless steel P
    Body CF8M stainless steel R
    Body Carbon steel C
    Disc Plated ductile iron B1
    Disc Aluminum bronze B2
    Disc CF8 stainless steel B3
    Disc Titanium steel B4
    Disc CF8M stainless steel B5
    Disc Carbon steel B6
    Disc Dual-phase stainless steel B7
    Stem Stainless steel
    Stem Carbon steel
    Bushing Lubricated bronze
    Bushing PTFE

    Seat Materials

    Seat Material Code Working Temperature
    Natural rubber X1 -20 to +85 deg C
    Hypalon X2 -18 to +135 deg C, short intermittent -18 to +149 deg C
    EPDM X3 -45 to +135 deg C, short intermittent -50 to +150 deg C
    Neoprene X4 -7 to +93 deg C, short intermittent -7 to +107 deg C
    NBR X5 -12 to +82 deg C, short intermittent -12 to +110 deg C
    Wear-resistant rubber X6 -10 to +50 deg C
    Viton X7 -23 to +150 deg C
    Heat-resistant rubber X8 -20 to +150 deg C
    PTFE F4 +10 to +150 deg C

    Dimensions

    Size (mm) Size (inch) A B C D L H D1 n-phi K E n1-phi1 phi2 G n2-M Weight (kg)
    40 1.5" 135 72 42 52.9 32 79 110 4-18 77 57.15 4-6.7 12.6 118 2.2
    50 2" 135 72 42 52.9 32 84.84 120 4-23 77 57.15 4-6.7 12.6 118 2.5
    65 2.5" 147 80 44.7 64.5 32 96.2 136.2 4-26.5 77 57.15 4-6.7 12.6 137 3.2
    80 3" 162 92 45.2 78.8 32 61.23 160 8-18 77 57.15 4-6.7 12.6 143 3.6
    100 4" 171 108 52.1 104 32 70.80 185 4-24.5 92 69.85 4-10.3 15.77 156 4.9
    125 5" 183 120 54.4 123.3 32 82.28 215 4-23 92 69.85 4-10.3 18.92 190 7
    150 6" 206 132 55.8 155.6 32 91.08 238 4-25 92 69.85 4-10.3 18.92 212 7.8
    200 8" 233 170 60.6 202.5 45 112.89 / 76.35 295 4-25 / 4-23 115 88.9 4-14.3 22.10 268 13.2
    250 10" 262 204 65.6 250.5 45 92.40 357 4-29 115 88.9 4-14.3 28.45 325 19.2
    300 12" 316 240 76.9 301.6 45 105.34 407 4-29 140 107.95 4-14.3 31.60 403 32.5
    350 14" 340 263 76.5 333.3 45 91.11 467 4-30 140 107.95 4-14.3 31.60 436 41.3
    400 16" 405 316 86.5 389.6 51.2 / 72 100.47 / 102.42 515 / 525 4-26 / 4-30 197 158.75 4-20.6 33.15 488 61
    450 18" 427 335 105.6 440.51 51.2 / 72 88.39 / 91.51 565 / 585 4-26 / 4-30 197 158.75 4-20.6 38 539 79
    500 20" 494 368 131.8 491.6 64.2 / 82 96.99 / 101.68 620 / 650 4-26 / 4-33 197 158.75 4-20.6 41.15 593 128
    600 24" 561 464 152 592.5 70.2 / 82 113.42 / 120.46 725 / 770 20-30 / 20-36 276 215.9 4-22.2 50.65 816 188
    700 28" 618 527 163 695 66 / 82 109.65 840 24-30 / 20-36 300 254 8-18 55 / 63.35 895 4-M33 284
    800 32" 672 597 188 794.7 66 / 82 124 950 24-33 / 24-39 300 254 8-18 55 / 63.35 1015 368
    900 36" 723 666 203 864.7 118 117.57 1050 24-33 300 254 8-18 75 1115 4-M30 713
    1000 40" 814 736 216 965 142 129.89 1160 24-36 300 254 8-18 85 1230 4-M33 864

    Cv Values

    Size (mm) Size (inch) 10 deg 20 deg 30 deg 40 deg 50 deg 60 deg 70 deg 80 deg 90 deg
    50 2" 0.1 5 12 24 45 64 90 125 135
    65 2.5" 0.2 8 20 37 65 98 144 204 220
    80 3" 0.3 12 22 39 70 116 183 275 302
    100 4" 0.5 17 36 78 139 230 364 546 600
    125 5" 0.8 29 61 133 237 392 620 930 1022
    150 6" 2 45 95 205 366 605 958 1437 1579
    200 8" 3 89 188 408 727 1202 1903 2854 3136
    250 10" 4 151 320 694 1237 2047 3240 4859 5340
    300 12" 5 234 495 1072 1911 3162 5005 7507 8250
    350 14" 6 338 715 1549 2761 4568 7230 10844 11917
    400 16" 8 464 983 2130 3797 6282 9942 14913 16388
    450 18" 11 615 1302 2822 5028 8320 13168 19752 21705
    500 20" 14 791 1674 3628 6465 10698 16931 25396 27908
    600 24" 22 1222 2587 5605 9989 16528 26157 39236 43116
    700 28" 36 1813 3639 6636 10000 14949 22769 34898 49500
    800 32" 45 2387 4791 8736 13788 20613 31395 48117 68250
    900 36" 60 3021 6063 11055 17449 26086 39731 60895 86375
    1000 40" 84 4183 8395 15307 24159 36166 55084 84425 119750

    Valve Installation Bolts

    Size PN10 Stud Bolt Qty. PN10 Stud Bolt Dia x L1 PN10 Stud Bolt Length PN10 Hex Bolt Qty. PN10 Hex Bolt Dia x L1 PN16 Stud Bolt Qty. PN16 Stud Bolt Dia x L1 PN16 Stud Bolt Length PN16 Hex Bolt Qty. PN16 Hex Bolt Dia x L1
    DN50 4 M16 x 110 130 4 x 2 M16 x 40 4 M16 x 110 130 4 x 2 M16 x 40
    DN65 4 M16 x 120 140 4 x 2 M16 x 45 4 M16 x 120 140 4 x 2 M16 x 45
    DN80 8 M16 x 120 140 8 x 2 M16 x 45 8 M16 x 120 140 8 x 2 M16 x 45
    DN100 8 M16 x 130 150 8 x 2 M16 x 50 8 M16 x 130 150 8 x 2 M16 x 50
    DN125 8 M16 x 130 150 8 x 2 M16 x 50 8 M16 x 130 150 8 x 2 M16 x 50
    DN150 8 M20 x 140 165 8 x 2 M20 x 50 8 M20 x 140 165 8 x 2 M20 x 50
    DN200 8 M20 x 150 175 8 x 2 M20 x 55 12 M20 x 150 175 12 x 2 M20 x 55
    DN250 12 M20 x 160 185 12 x 2 M20 x 60 12 M20 x 160 185 12 x 2 M24 x 60
    DN300 12 M20 x 170 195 12 x 2 M20 x 65 12 M20 x 170 200 12 x 2 M24 x 65
    DN350 16 M20 x 170 195 16 x 2 M20 x 65 16 M20 x 170 200 16 x 2 M24 x 65
    DN400 16 M24 x 190 220 16 x 2 M20 x 75 16 M27 x 200 230 16 x 2 M27 x 75
    DN450 20 M24 x 220 250 20 x 2 M24 x 80 20 M27 x 220 254 20 x 2 M27 x 80
    DN500 20 M24 x 260 290 20 x 2 M24 x 90 20 M30 x 260 294 20 x 2 M30 x 90
    DN600 20 M27 x 290 324 20 x 2 M24 x 100 20 M33 x 290 334 20 x 2 M33 x 100
    DN700 24 M27 x 300 334 24 x 2 M27 x 100 20 M33 x 300 341 24 x 2 M33 x 110
    DN800 24 M30 x 330 364 24 x 2 M30 x 100 24 M36 x 330 375 24 x 2 M33 x 110
    DN900 24 M30 x 350 388 4 x 2 M30 x 100
    DN1000 24 M30 x 370 411 4 x 2 M33 x 100

    Dimensions

    Size (DN) A B E D L PN10 n-d0 PN16 n-d0 Weight (kg)
    DN40 136 72 81 110 42 4-phi16 4-phi16 2.7
    DN50 136 72 81 125 42 4-phi19 4-phi19 2.7
    DN65 148 77 97 145 44.7 4-phi19 4-phi19 3.2
    DN80 163 96 112 160 45.2 8-phi19 8-phi19 4.1
    DN100 171 112 140 180 52.1 4-phi19 4-phi19 5.7
    DN125 185 126 160 210 54.4 4-phi19 4-phi19 8.1
    DN150 210 138 193 240 55.8 4-phi19 4-phi19 9.5
    DN200 236 175 245 295 60.6 4-phi23 4-phi23 15
    DN250 264 206 291 357 65.6 4-phi23 4-phi26 21
    DN300 317 244 343 407 76.9 4-phi23 4-phi26 30.5
    DN350 342 264 415 467 76.5 4-phi23 4-phi26 40
    DN400 405 330 460 515 / 525 86.5 4-phi26 4-phi30 58
    DN450 427 348 510 565 / 585 105.6 4-phi26 4-phi30 72
    DN500 473 370 560 620 / 650 131.8 4-phi30 4-phi33 101
    DN600 500 433 650 725 / 770 152 20-phi30 20-phi33 138
    DN700 627 512 770 840 163 24-phi30 24-phi33 165
    DN800 672 597 871 950 188 24-phi33 24-phi36 280
    DN900 723 666 972 1050 203 28-phi33 28-phi36 570
    DN1000 814 736 1060 1160 216 28-phi36 28-phi39 760
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