Hard sealing butterfly valve

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Metallic Hard Seal Butterfly Valve

Brand:Valve
Type:
Material:
Connection:
Pressure:
Temperature:
medium
Uses:
DownLoad
Introduction>>Parameters>>Works>>

Product structure and performance synopsis:

Three eccentric hard sealing butterfly valve products, our company produces long-life, energy-saving valve of electric actuators and pneumatic actuators. Products meet national standards JB/T8527-97 (metal sealing butterfly valve), GB/T13927-92 (universal valve pressure test) standards and other relevant provisions of the standard valve.This product has a valve body, disc, gasket, transmission and other major components. Its structure using three-dimensional eccentric principles of design, hard and soft elastic sealing and seal compatible multi-processing of new technology, the butterfly valve in working, reducing the torque force, to achieve labor and energy saving features. To ensure that the overall corrosion resistance, high temperature resistance, abrasion resistance reliability. Its main characteristics are:

  • 1、 Unique structure, small & portable, flexible operation, effort, convenience;
  • 2、 Reliable sealing, air sealing can be achieved without leakage;
  • 3、 Flow curve tending to straight regulatory;
  • 4、 Using three partial principle, so that the sealing surface extending approximately zero wear life of the valve;
  • 5、 Wide range of applications. Such as: Can be used for water, steam, oil, air, gas and other media;
  • 6、 e application of different temperature and pressure levels below 6.4MPa, corrosion and other media;

Main technical parameter:

Nominal diameter DN(mm) DN50-DN200 DN50-DN500
Nominal pressure PN(Mpa) 0.6 1.0 1.6 2.5 4
Test pressure Shell test 0.9 1.5 2.4 3.75 6
Sheal test 0.66 1.1 1.76 2.75 4.4
Gas seal test 0.6 0.6 0.6 0.6 0.6
Applicable medium Water, steam, oil, acid corrosive and soon
Applicable temperature Carbon steel +29℃~+425℃ Stainless steel -40℃~+600℃
Multilayer metallic hard seal butterfly valve construction U-shaped metallic hard butterfly valve construction


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  • main parts:
  • Standard for design and manufacture
  • Worm wheel
  • Pneumatic
  • Electrical

Material for main parts:

Parts name Material
Body Cast iron, cast steel, stainless steel
Disc Cast steel, Alloy steel, stainless steel
Seat seal ring Stainless steel, multiple layers
Stem 2Cr13、1Cr13 Stainless steel
Packing Flexible graphite

Standard for design and manufacture:

Design standard GB/T12220-1989
Flange standard GB/T9113.1-2000
GB/T9113.1-2000
GB/T9115.1-2000
Structure length GB/T12221-1989
Pressure test GB/T13927-1992
JB/T9092-199

Main connection and external dimensions:

DN Structure length External dimension Connection dimension
  Worm wheel Pneumatic Electrical PN40
mm inch L H H1 A1 B1 H2 A2 B2 H3 A3 B3 D1 Z-∅d
50 2 43 112 350 180 200 625 250 170 530 250 255 125 4-∅18
65 2 1/2 46 115 370 180 200 625 250 170 530 250 255 145 8-∅18
80 3 64 120 380 180 200 645 250 170 565 250 255 160 8-∅18
100 4 64 138 420 180 200 675 250 170 600 250 255 190 8-∅22
125 5 70 164 460 180 200 715 450 220 640 250 255 220 8-∅26
150 6 76 175 555 270 280 800 450 220 705 300 315 250 8-∅22
200 8 89 215 780 400 425 850 450 220 775 300 315 320 12-∅30
250 10 114 243 540 400 425 925 450 280 945 300 315 335 12-∅33
300 12 114 285 995 450 560 1035 650 280 1070 300 315 450 16-∅33
350 14 127 320 1050 450 560 1070 650 280 1140 300 315 510 16-∅36
400 16 140 350 1220 535 580 1190 650 280 1210 300 315 585 16-∅39
450 18 152 350 1280 535 580       1335 575 714 610 20-∅39
500 20 152 380 1365 535 580       1415 575 714 670 20-∅42

Main connection and external dimensions:

DN Structure length External dimension Connection dimension
  Worm wheel Pneumatic Electrical PN6 <
mm inch L H H1 A1 B1 H2 A2 B2 H3 A3 B3 D1 Z-∅d D1 Z-∅d
50 2 43 112 350 180 200 625 245 72 530 250 255 110 4-∅14 125 4-∅18
65 2 1/2 46 115 370 180 200 625 245 72 530 250 255 110 4-∅14 145 4-∅18
80 3 64 120 380 180 200 645 245 72 565 250 255 150 4-∅18 160 8-∅18
100 4 64 138 420 180 200 675 355 92 600 250 255 170 4-∅18 180 8-∅18
125 5 70 164 460 180 200 715 355 92 640 250 255 200 8-∅18 210 8-∅18
150 6 76 175 555 270 280 255 92 705 300 315 225 225 8-∅18 240 8-∅22
200 8 89 215 780 400 425 850 450 170 775 300 315 280 8-∅18 295 8-∅22
250 10 114 243 540 400 425 925 450 170 945 300 315 335 12-∅18 350 12-∅22
300 12 114 285 995 450 560 1035 450 220 1070 300 315 395 12-∅22 400 12-∅22
350 14 127 320 1050 450 560 1070 450 220 1140 300 315 445 12-∅22 460 16-∅22
400 16 140 350 1220 535 580 1190 450 220 1210 300 315 495 16-∅22 515 16-∅26
450 18 152 350 1280 535 580 1250 650 280 1335 575 714 550 16-∅22 565 20-∅26
500 20 152 380 1365 535 580 1290 650 280 1415 575 714 600 20-∅22 620 20-∅26
600 24 154 435 1460 570 660 1455 850 380 1505 656 810 705 20-∅26 725 20-∅30
700 28 165 480 1520 750 750 1585 850 380 1844 656 810 810 24-∅26 840 24-∅30
800 32 190 530 1710 750 750 1700 1250 380 2040 656 810 920 24-∅30 950 24-∅33
900 36 203 595 1810 750 750 1965 1250 380 2255 785 863 1120 28-∅30 1160 28-∅36
1000 40 216 650 1900 900 750 2015 1250 380 2380 785 863 1120 28-∅30 1160 28-∅36
1200 48 254 775 2280 1000 925 2250 1250 380 2640 785 863 1340 32-∅33 1380 32-∅39
1400 56 270 870 2450 1000 925       2886 910 890 1560 36-∅36 1590 36-∅42
1600 64 440 1000 2730 1000 925       3156 910 890 1760 40-∅36 1820 40-∅48
1800 72 490 1100 3020 1100 980       3421 1030 930 1970 44-∅39 2020 44-∅48
2000 80 540 1250 3270 1100 980       3685 1050 940 2180 48-∅42 2230 48-∅48

Main connection and external dimensions:

DN Structure length External dimension Connection dimension
  Worm wheel Pneumatic Electrical PN6 PN25
mm inch L H H1 A1 B1 H2 A2 B2 H3 A3 B3 D1 Z-∅d D1 Z-∅d
50 2 43 112 350 180 200 625 245 72 530 250 255 110 4-∅14 125 4-∅18
65 2 1/2 46 115 370 180 200 625 245 72 530 250 255 145 4-∅18 145 8-∅18
80 3 64 120 380 180 200 645 245 72 565 250 255 160 8-∅18 160 8-∅18
100 4 64 138 420 180 200 675 355 92 600 250 255 180 8-∅18 190 8-∅22
125 5 70 164 460 180 200 715 355 92 640 250 255 210 8-∅18 220 8-∅26
150 6 76 175 555 270 280 800 355 92 705 300 315 240 8-∅22 250 8-∅22
200 8 89 215 780 400 425 850 450 170 775 300 315 295 12-∅22 310 12-∅26
250 10 114 243 540 400 425 925 450 170 945 300 315 355 12-∅26 370 12-∅30
300 12 114 285 995 450 560 1035 450 220 1070 300 315 410 12-∅26 430 16-∅30
350 14 127 320 1050 450 560 1070 450 220 1140 300 315 470 16-∅26 490 16-∅33
400 16 140 350 1220 535 580 1190 450 220 1210 300 315 525 16-∅30 550 16-∅36
450 18 152 350 1280 535 580 1250 650 280 1335 575 714 585 20-∅30 600 20-∅36
500 20 152 380 1365 535 580 1290 650 280 1415 575 714 650 20-∅33 660 20-∅36
600 24 154 435 1460 570 660 1455 850 380 1505 656 810 770 20-∅36 770 20-∅39
700 28 165 480 1520 750 750 1585 850 380 1844 656 810 840 24-∅36 875 24-∅42
800 32 190 530 1710 750 750 1700 1250 380 2040 656 810 920 24-∅30 950 24-∅33
900 36 203 595 1810 750 750 1965 1250 380 2255 785 863 1050 28-∅39 1090 28-∅46
1000 40 216 650 1900 900 750 2015 1250 380 2380 785 863 1170 28-∅42 1210 28-∅55
1200 48 254 775 2280 1000 925 2250 1250 380 2640 785 863 1390 32-∅48 1420 32-∅55
1400 56 270 870 2450 1000 925       2886 910 890 1590 36-∅48 1640 36-∅60
1600 64 440 1000 2730 1000 925       3156 910 890 1820 40-∅56 1860 40-∅60
1800 72 490 1100 3020 1100 980       3421 1030 930 2020 44-∅56 2070 44-∅68
2000 80 540 1250 3270 1100 980       3685 1050 940 2230 48-∅62 2300 48-∅68

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