Manual Flanged Butterfly Valve
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  • Manual Flanged Butterfly Valve

Manual Flanged Butterfly Valve

Model:

DS341X

Specifications:

DN80-DN1800

Applicable temperature:

≤ 250 ℃

Applicable medium:

Water, oil, weak corrosive fluid


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  • Product Description
  • Detailed parameters
  • The manual flange butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. And only need to rotate 90 ° to quickly open and close, simple operation, while the valve has good fluid control characteristics.

    When the manual gas butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valve has elastic seal and metal seal two types of sealing. Elastic sealing valve, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate.

    Butterfly valve is mainly divided into flange type butterfly valve and wafer type butterfly valve, wafer type butterfly valve is used to connect the valve between the two pipe flanges, flange type butterfly valve is on the valve with a flange, with bolts on both ends of the valve flange connected to the pipe flange.

    Manual flange butterfly valve with metal seal valve generally longer life than the elastic seal valve, but it is difficult to achieve a complete seal. Metal seals can adapt to higher operating temperatures, and elastic seals have defects that are limited by temperature. If the butterfly valve is required to be used as a flow control, the main thing is to correctly select the size and type of the valve. The structure principle of butterfly valve is especially suitable for making large diameter valve. Butterfly valve is not only widely used in oil, gas, chemical industry, water treatment and other general industries, but also used in the cooling water system of thermal power station.


    Warm tips:

    All text, data, and images in this article are for reference only. Need to see moreCenter line type wafer type rubber butterfly valveFor details of performance parameters, structural size parameters, prices, etc., or for high-quality printed samples, pleaseContact Us


     

  • Shape and connection dimension of manual flange butterfly valve

    DN H1 H2 H3 H4 H5 A1 A2 $ L 1.0MPa 1.6MPa
    Short Long D1 b N-d D1 b N-d
    50 82 150 66 181   135 42 150 108 150 125 20 4-$19 125 19 4-$19
    65 92 165 66 181   135 42 150 112 170 145 20 4-$19 145 19 4-$19
    80 100 170 66 181   135 42 150 114 180 160 22 8-$19 160 19 8-$19
    100 125 195 77 190   135 42 180 127 190 180 22 8-$19 180 19 8-$19
    125 142 220 77 190   135 42 180 140 200 210 26 8-$19 210 19 8-$19
    150 160 250 77 190   135 42 320 140 210 240 26 8-$23 240 19 8-$23
    200 190 275 107 260   202 60 320 152 230 195 26 8-$23 295 20 12-$23
    250 220 305 107 260   202 60 320 165 250 350 28 12-$23 355 22 12-$28
    300 245 350 126 298   220 93 320 178 270 400 28 12-$23 410 24.5 12-$28
    350 278 385 126 298   220 93 320 190 290 460 28 16-$23 470 26.5 16-$28
    400 306 435 156 335 335 287 123 400 216 310 515 32 16-$28 525 28 16-$31
    450 346 490 156 335 335 287 123 400 222 330 565 32 20-$28 585 30 20-$31
    500 375 505 155 285 386 360 184 400 229 350 620 32 20-$28 650 31.5 20-$34
    600 425 605 155 285 386 360 184 400 267 390 725 36 20-$31 770 36 20-$37
    700 496 675 195 348 386 410 217 500 292 430 840 36 24-$31 840 39.5 24-$37
    800 560 740 195 348 386 410 217 500 318 470 950 37 24-$34 950 43 24-$40
    900 625 805 226 391 458 500 281 500 330 510 1050 37 28-$34 1050 46.5 28-$40
    1000 680 865 226 391 458 500 281 500 410 550 1160 40 28-$37 1170 50 28-$43
    1200 800 1065 251 411 445 501 312 630 470 630 1380 45 32-$40 1390 57 32-$49
    1400 920 1207 343 425 581 656 290 800 530 710 1590 46 36-$43 1590 60 36-$49
    1600 1030 1317 370 425 632 798 414 800 600 790 1820 52 40-$49 1820 65 40-$56
    1800 1290 1457 470 455 632 750 440 900 670 870 2020 52 44-$49 2020 70 44-$56