Electric clamp type hard seal butterfly valve

Electric clamp type hard seal butterfly valve

Product model: D971H/W
Nominal diameter: DN50~1200mm
Pressure range: PN1.0~2.5MPa
Applicable temperature: carbon steel: -29 ℃~400 ℃, stainless steel: -40 ℃~600 ℃
Applicable media: air, water, sewage, steam, gas, oil, etc
Valve material: cast steel, stainless steel
Manufacturing standard: JB/T8527-1997
Flange standard: GB/T9113-2000
Length standard: GB/T12221-1989
Inspection standard: GB/T13927-1992
Product overview
The electric clamping hard seal butterfly valve is mainly assembled by the electric actuator and the clamping hard seal butterfly valve. The hard seal butterfly valve adopts a three-eccentric multi-layer metal hard seal structure, which has the performance of wear resistance and erosion resistance. It is widely used in metallurgy, electric power, petrochemical, pharmaceutical and water supply and drainage industrial pipelines as a medium on the pipeline. By using (220V, 380V) power supply voltage as the driving power to accept the industrial automation instrument control system output (4~20mA) signal to push the valve stem to drive the butterfly plate (0-90°) rotation to complete the butterfly valve switching and adjustment.
Product characteristics
1, the valve adopts three eccentric sealing structure, the seat and the disc wear is small. It has the dual advantages of metal hard seal and elastic seal, both at low and high temperatures, with good sealing and corrosion resistance.
2, the sealing surface is surfacing cobalt-based carbide, sealing surface wear resistance, high strength, large flow area, small flow resistance. With bi-directional sealing function, the installation is not limited by the flow direction of the medium and is not affected by the spatial position.



Main performance specification
  • Nominal diameter DN(mm)
DN50～1200
  • Nominal Pressure
PN(MPa) 0.6 1.0 1.6 2.5
  • Test pressure
  • Shell test
0.9 1.5 2.4 3.75
  • Seal test
0.66 1.1 1.76 2.75
Low pressure airtight test 0.5～0.7
     
  • Applicable medium
Air, water, sewage, steam, gas, oil, etc
  • Applicable temperature
carbon steel：-29℃～400℃ 、stainless steel：-40℃～600℃


Main contour connection dimensions


  • Nominal diameter


(DN)

main dimension
 flange dimensions
L H H1 1.0MPa 1.6MPa 2.5MPa
D D1 n-Фd D D1 n-Фd D D1 n-Фd
50 43 112 530 165 125 4-18 165 125 4-18 165 125 4-18
65 46 115 530 185 145 4-18 185 145 4-18 185 145 8-18
80 46 120 565 200 160 4-18 200 160 8-18 200 160 8-18
100 52 138 600 220 180 8-18 220 180 8-18 235 190 8-22
125 56 164 640 250 210 8-18 250 210 8-18 270 220 8-26
150 56 175 705 285 240 8-22 285 240 8-22 300 250 8-26
200 60 200 775 340 295 8-22 340 295 12-22 360 310 12-26
250 68 243 945 395 350 12-22 405 355 12-26 425 370 12-30
300 78 250 1070 445 400 12-22 460 410 12-26 485 430 16-30
350 78 280 1140 505 460 16-22 520 470 12-26 555 490 16-33
400 102 305 1210 565 515 16-26 580 525 16-26 620 550 16-36
450 114 350 1335 615 565 20-26 640 585 16-30 670 600 20-36
500 127 380 1415 670 620 20-26 715 650 20-30 730 660 20-36
600 154 445 1605 780 725 20-30 840 770 20-33 845 770 20-39
700 165 480 1844 895 840 24-30 910 840 24-36 960 875 24-42
800 190 530 2040 1015 950 24-33 1025 950 24-39 1085 990 24-48
900 203 580 2255 1115 1050 28-33 1125 1050 28-39 1185 1090 28-48
1000 216 650 2380 1230 1160 28-36 1255 1170 28-42 1320 1210 28-56
1200 254 760 2640 1455 1380 32-39 1485 1390 32-48 1530 1420 32-56