Cast Steel Wafer Butterfly Valve D373H
Product Features
1. This butterfly valve features simple construction, compact size, light weight, low material consumption and small installation footprint. It opens and closes quickly with 90° rotary operation and requires low driving torque. Used for cutting off, connecting and regulating pipeline medium, it delivers excellent fluid control performance and tight shut-off sealing.
2. It is suitable for slurry conveyance and applications with minimal residual liquid remaining in the pipeline cavity. It maintains excellent sealing performance and regulating characteristics even under low pressure working conditions.
3. Streamlined disc design greatly reduces fluid resistance loss, making this valve an energy-saving and eco-friendly product.
4. The valve stem adopts a solid structure with professional heat treatment, offering outstanding mechanical strength, corrosion resistance and abrasion resistance. During opening and closing cycles, the stem only rotates without vertical up-and-down movement, protecting packing from damage and ensuring stable and reliable sealing. It is permanently locked to the butterfly disc, and the external end features an anti-blowout design to prevent dangerous stem ejection under accidental connection failure.
5. Connection types available: flanged, wafer, butt weld and lug wafer connection. Actuator options include handwheel, worm gear, electric, pneumatic, hydraulic and electro-hydraulic drive, supporting remote control and fully automatic operation.
Advantages
1. Fast, labor-saving opening and closing, low fluid resistance, suitable for frequent repeated operation.
2. Simple overall structure, small external dimension, short face-to-face length, light weight, especially ideal for large diameter valve applications.
3. Excellent performance for slurry handling, leaving minimal residual liquid inside pipelines.
| Main Dimensions & Connection Size D373 Wafer Type | |||||
| 国标(GB)PN1.0MPa | |||||
| DN | L | D1 | D2 | Z-фd(M) | H |
| 80 | 49 | 160 | 132 | 8-ф18(M16) | 215 |
| 100 | 56 | 180 | 156 | 8-ф18(M16) | 225 |
| 125 | 64 | 210 | 184 | 8-ф18(M16) | 290 |
| 150 | 70 | 240 | 211 | 8-ф22(M20) | 315 |
| 200 | 71 | 295 | 266 | 8-ф22(M20) | 360 |
| 250 | 76 | 350 | 319 | 12-ф22(M20) | 395 |
| 300 | 83 | 400 | 370 | 12-ф22(M20) | 425 |
| 350 | 92 | 460 | 429 | 16-ф22 | 480 |
| 400 | 102 | 515 | 480 | 16-ф26 | 505 |
| 450 | 114 | 565 | 530 | 20-ф26 | 540 |
| 500 | 127 | 620 | 582 | 20-ф26 | 575 |
| 600 | 154 | 725 | 682 | 20-ф30 | 685 |
| 700 | 165 | 840 | 794 | 24-ф30 | 755 |
| 800 | 190 | 950 | 901 | 24-ф33 | 825 |
| 900 | 203 | 1050 | 1001 | 28-ф33 | 960 |
| 1000 | 216 | 1160 | 1112 | 28-ф36 | 1015 |
| 1200 | 254 | 1380 | 1328 | 32-ф39 | 1150 |
| 1400 | 279 | 1590 | 1530 | 36-ф42 | 1345 |
| 国标(GB)PN1.6MPa | |||||
| DN | L | D1 | D2 | Z-фd | H |
| 80 | 49 | 160 | 132 | 8-ф18 | 215 |
| 100 | 56 | 180 | 156 | 8-ф18 | 225 |
| 125 | 64 | 210 | 184 | 8-ф18 | 290 |
| 150 | 70 | 240 | 211 | 8-ф22 | 315 |
| 200 | 71 | 295 | 266 | 12-ф22 | 360 |
| 250 | 76 | 350 | 319 | 12-ф26 | 395 |
| 300 | 83 | 400 | 370 | 12-ф26 | 425 |
| 350 | 92 | 460 | 429 | 16-ф26 | 480 |
| 400 | 102 | 515 | 480 | 16-ф30 | 505 |
| 450 | 114 | 565 | 530 | 20-ф30 | 540 |
| 500 | 127 | 620 | 582 | 20-ф33 | 575 |
| 600 | 154 | 725 | 682 | 20-ф36 | 685 |
| 700 | 165 | 840 | 794 | 24-ф36 | 755 |
| 800 | 190 | 950 | 901 | 24-ф39 | 825 |
| 900 | 203 | 1050 | 1001 | 28-ф39 | 960 |
| 1000 | 216 | 1160 | 1112 | 28-ф42 | 1015 |
| 1200 | 254 | 1380 | 1328 | 32-ф48 | 1150 |
| 1400 | 279 | 1590 | 1530 | 36-ф48 | 1345 |
| 国标(GB)PN2.5MPa | |||||
| DN | L | D1 | D2 | Z-фd | H |
| 80 | 49 | 160 | 132 | 8-ф18 | 215 |
| 100 | 56 | 190 | 156 | 8-ф22 | 225 |
| 125 | 64 | 220 | 184 | 8-ф26 | 290 |
| 150 | 70 | 250 | 211 | 8-ф26 | 315 |
| 200 | 71 | 310 | 274 | 12-ф26 | 360 |
| 250 | 76 | 370 | 330 | 12-ф30 | 395 |
| 300 | 83 | 430 | 389 | 16-ф30 | 460 |
| 350 | 92 | 490 | 448 | 16-ф33 | 475 |
| 400 | 102 | 550 | 503 | 16-ф36 | 520 |
| 450 | 114 | 600 | 548 | 20-ф36 | 550 |
| 500 | 127 | 660 | 609 | 20-ф36 | 625 |
| 600 | 154 | 770 | 720 | 20-ф39 | 685 |
| 700 | 165 | 875 | 820 | 24-ф42 | 790 |
| 800 | 190 | 990 | 928 | 24-ф48 | 890 |
| 900 | 203 | 1090 | 1028 | 28-ф48 | 960 |
| 1000 | 216 | 1210 | 1140 | 28-ф56 | 1055 |
| 1200 | 254 | 1420 | 1350 | 32-ф56 | 1185 |
| 1400 | 279 | 1640 | 1560 | 36-ф60 | 1345 |
| 国标(GB)PN4.0MPa | |||||
| DN | L | D1 | D2 | Z-фd | H |
| 80 | 64 | 160 | 135 | 8-ф18 | 230 |
| 100 | 64 | 190 | 160 | 8-ф22 | 250 |
| 125 | 70 | 220 | 188 | 8-ф26 | 295 |
| 150 | 76 | 250 | 218 | 8-ф26 | 340 |
| 200 | 89 | 320 | 282 | 12-ф30 | 390 |
| 250 | 114 | 385 | 345 | 12-ф33 | 485 |
| 300 | 114 | 450 | 408 | 16-ф33 | 490 |
| 350 | 127 | 510 | 465 | 16-ф36 | 540 |
| 400 | 140 | 585 | 535 | 16-ф39 | 620 |
| 450 | 152 | 610 | 560 | 20-ф39 | 645 |
| 500 | 152 | 670 | 612 | 20-ф42 | 670 |
| 600 | 178 | 795 | 730 | 20-ф48 | 740 |
| 700 | 229 | 900 | 835 | 24-ф48 | 900 |
| 800 | 241 | 1030 | 960 | 24-ф56 | 975 |