Stainless Steel Flanged Butterfly Valve（Worm Gear）
Technical Parameter
Item model number: D341X
Nominal diameter: DN50～2000mm
Nominal pressure: PN0.6~1.6MPa
Applicable temperature: ≤120℃
Body material: all kinds of rubber, PTFE
Drive form: manual, worm and worm gear drive, pneumatic drive, electric drive
Applicable medium: air, water, sewage, steam, gas, oil, etc.
Design standard: GB/T2238
Flange connection size: GB/T9113.1; GB/T9115.1; JB78
Structure length: GB/T12221
Pressure test: GB/T13927; JB/T9092
Product overview
The worm gear flange type soft sealing butterfly valve is suitable for the water supply and drainage and gas pipelines of food, medicine, chemical industry, petroleum, electric power, light textile, papermaking, etc. with temperature ≤120℃ and nominal pressure ≤1.6MPa.
Main dimensions and weight (PN1.0/1.6MPa)
| DN | L | D | D1 | D2 | b | f | N-d0 | A | K | E | F | H | H1 | H2 | Φ2 | N-d1 |
| 50 | 108 | 165 | 125 | 102 | 18 | 3 | 4-Φ18 | 180 | 65 | 50 | 13 | 83 | 338 | 28 | 12.6 | 4-Φ7 |
| 65 | 112 | 185 | 145 | 122 | 18 | 3 | 8-Φ18 | 180 | 65 | 50 | 13 | 93 | 358 | 28 | 12.6 | 4-Φ7 |
| 80 | 114 | 200 | 160 | 138 | 20 | 3 | 8-Φ18 | 245 | 65 | 50 | 13 | 100 | 413 | 28 | 12.6 | 4-Φ7 |
| 100 | 127 | 220 | 180 | 158 | 20 | 3 | 8-Φ18 | 240 | 90 | 70 | 13 | 114 | 428 | 28 | 15.77 | 4-Φ10 |
| 125 | 140 | 250 | 210 | 188 | 22 | 3 | 8-Φ18 | 240 | 90 | 70 | 13 | 125 | 444 | 28 | 18.92 | 4-Φ10 |
| 150 | 140 | 285 | 240 | 212 | 22 | 3 | 8-Φ22 | 350 | 90 | 70 | 13 | 143 | 553 | 28 | 18.92 | 4-Φ10 |
| 200 | 152 | 340 | 295 | 268 | 24 | 3 | 12-Φ22 | 350 | 125 | 102 | 13 | 170 | 678 | 38 | 22.1 | 4-Φ12 |
| 250 | 165 | 405 | 355 | 320 | 26 | 3 | 12-Φ26 | 550 | 125 | 102 | 13 | 198 | 742 | 38 | 28.45 | 4-Φ12 |
| 300 | 178 | 460 | 410 | 378 | 28 | 4 | 12-Φ26 | 600 | 125 | 102 | 20 | 223 | 803 | 38 | 31.6 | 4-Φ12 |
| 350 | 190 | 520 | 470 | 438 | 30 | 4 | 16-Φ26 | 600 | 150 | 125 | 20 | 270 | 866 | 45 | 31.6 | 4-Φ14 |
| 400 | 216 | 580 | 525 | 490 | 32 | 4 | 16-Φ30 | 600 | 175 | 140 | 20 | 300 | 940 | 51 | 33.15 | 4-Φ18 |
| 450 | 222 | 640 | 585 | 550 | 40 | 4 | 20-Φ30 | 750 | 175 | 140 | 20 | 340 | 995 | 51 | 37.95 | 4-Φ18 |
| 500 | 229 | 715 | 650 | 610 | 44 | 4 | 20-Φ33 | 750 | 175 | 140 | 22 | 355 | 1058 | 57 | 41.12 | 4-Φ18 |
| 600 | 267 | 840 | 770 | 725 | 54 | 5 | 20-Φ36 | 750 | 210 | 165 | 30 | 410 | 1163 | 70 | 50.63 | 4-Φ22 |
| 700 | 292 | 910 | 840 | 795 | 40 | 5 | 24-Φ36 | 750 | 300 | 254 | 30 | 478 | 1283 | 66 | 63.35 | 8-Φ18 |
| 800 | 318 | 1025 | 950 | 900 | 42 | 5 | 24-Φ39 | 750 | 300 | 254 | 30 | 529 | 1398 | 66 | 63.35 | 8-Φ18 |
| 900 | 330 | 1125 | 1050 | 1000 | 44 | 5 | 28-Φ39 | 1250 | 300 | 254 | 34 | 584 | 1498 | 118 | 75 | 8-Φ18 |
| 1000 | 410 | 1255 | 1170 | 1115 | 46 | 5 | 28-Φ42 | 1500 | 300 | 254 | 34 | 357 | 1608 | 142 | 85 | 8-Φ18 |
| 1200 | 470 | 1485 | 1390 | 1330 | 52 | 5 | 32-Φ48 | 1500 | 350 | 298 | 34 | 799 | 1876 | 150 | 105 | 8-Φ22 |
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