Suzhou Alpine Flow Control Co., Ltd
Suzhou Alpine Flow Control Co., Ltd Be The Market Leader In Water Flow Control Valve
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Doubel Eccentric Butterfly Valve with both side seal, low torque, Dovetail, repairing online
Features:
The disc of the BV DN100-DN500mm is flat shape, which allows bigger rubbish to flow through. DN500 to DN1200mm discs are arch shape with stronger ribs on the back, causing less compression and wearing of seal rubber to increase the life of rubber seal.At the same time water head loss can be reduced a lot and turbulence can be minimized,thus lowering the pumping cost and flow through disc energy is saved.
Online repairing by EPOXY. The special technology can help User can repair the Double Eccentric Flange Butterfly Valve without taking the valve out of the pipeline yhanks for the special technology. The user only needs to repair it from the exterior of the butterfly valve without going into the pipeline. Please consult the factory and we will show you how to repair the BV when the rubber seal is damaged.
Technical Data:
Working Temperature: -10℃ ~80℃
Ratings: 1.0Mpa; 1.6Mpa, 150 Psi
Flow media:Water & Wastewater
Size Range: DN100-1200mm
Service Fields:
Water works system, waste water system, water distribution system, HVAC system, industry, power plant
Torque List
| Bare Head Torque (Nm) | ||
| DN | PN10 | PN16 |
| 100 | 70 | 85 |
| 150 | 118 | 128 |
| 200 | 190 | 210 |
| 250 | 228 | 250 |
| 300 | 345 | 372 |
| 350 | 600 | 760 |
| 400 | 960 | 1160 |
| 450 | 972 | 1280 |
| 500 | 1040 | 1680 |
| 600 | 1800 | 2500 |
| 700 | 1944 | 2592 |
| 800 | 3240 | 4428 |
| 900 | 4100 | 5300 |
| 1000 | 5850 | 7245 |
| 1200 | 8280 | 13320 |
Production:
| Quality System | |
| IQC | Check call incoming parts |
| IPQC | Check the production process is qualified |
| FQC | All valves are pressure tested |
| OQC | Check the valve outlook and packing |
Material
DN100-DN500
| No. | Part Name | Material | Standard |
| 1 | Body | Ductile Iron | GJS500-7 |
| 2 | Lower shaft | Stainless Steel | AISI420/304/316 |
| 3 | Disc | Ductile Iron | GJS500-7 |
| 4 | Main shaft | Stainless Steel | AISI420/304/316 |
| 5 | Backup Plate | Plactic | PTFE |
| 6 | Retaining Plate | Carbon Steel | Commercial |
| 7 | Shaft Key | Carbon Steel | Commercial |
| 8 | In hex bolt | Carbon Steel | Commercial |
| 9 | O-ring | Rubber | NBR |
| 10 | Shaft Bearing | Carbon Steel+Brone/PTFE | Commercial |
| 11 | In hex bolt | Carbon Steel | Commercial |
| 12 | Pin | Stainless Steel | AISI431 |
| 13 | In hex bolt | Carbon Steel | Commercial |
| 14 | Shaft Bearing | Carbon Steel+Brone/PTFE | Commercial |
| 15 | Position Plate | Ductile Iron | GJS500-7 |
| 16 | Hex Bolt | Carbon Steel | Commercial |
| 17 | In hex bolt | Carbon Steel | Commercial |
| 18 | Bottom Flange | Ductile Iron | GJS500-7 |
| 19 | O-ring | Rubber | NBR |
| 20 | Disc Seat | Stainless Steel/DI | 316SSL/GJS500-7+Exoxy coated |
| 21 | Body Seat | Rubber | EPDM |
| 22 | Wedge | Epoxy | Commercial |
| 23 | Operator | Worm gear op. | Commercial |
| 24 | Hex Bolt | Stainless Steel | AISI304 |
DN600-DN1200
| No. | Part Name | Material | Standard |
| 1 | Body | Ductile Iron | GJS500-7 |
| 2 | Lower shaft | Stainless Steel | AISI420/304/316 |
| 3 | Disc | Ductile Iron | GJS500-7 |
| 4 | Main shaft | Stainless Steel | AISI420/304/316 |
| 5 | Backup Plate | Plactic | PTFE |
| 6 | Retaining Plate | Carbon Steel | Commercial |
| 7 | Shaft Key | Carbon Steel | Commercial |
| 8 | In hex bolt | Carbon Steel | Commercial |
| 9 | O-ring | Rubber | NBR |
| 10 | Shaft Bearing | Carbon Steel+Brone/PTFE | Commercial |
| 11 | In hex bolt | Carbon Steel | Commercial |
| 12 | Pin | Stainless Steel | AISI431 |
| 13 | In hex bolt | Carbon Steel | Commercial |
| 14 | Shaft Bearing | Carbon Steel+Brone/PTFE | Commercial |
| 15 | Position Plate | Carbon Steel | Commercial |
| 16 | Hex Bolt | Carbon Steel | Commercial |
| 17 | In hex bolt | Carbon Steel | Commercial |
| 18 | Bottom Flange | Ductile Iron | GJS500-7 |
| 19 | Thrust Bearing | Steel | Commercial |
| 20 | O-ring | Rubber | NBR |
| 21 | Disc Seat | DI+Epoxy/Stainless Steel | 316SSL/GJS500-7+Exoxy coated |
| 22 | Body Seat | Rubber | EPDM |
| 23 | Wedge | Epoxy | Commercial |
| 24 | Operator | Worm gear op. | Commercial |
| 25 | Hex Bolt | Stainless Steel | AISI304 |
Dimension:
| L | H1 | H2 | H3 | ΦB | ΦK | ΦD | nΦd | C | |||||||
| DN | #13 | #14 | PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | |||
| 100 | 127 | 190 | 155 | 155 | 25 | 156 | 180 | 220 | 8Φ19 | 19 | |||||
| 150 | 140 | 210 | 212 | 215 | 40 | 211 | 240 | 285 | 8Φ23 | 19 | |||||
| 200 | 152 | 230 | 248 | 250 | 48 | 266 | 295 | 340 | 8Φ23 | 12Φ23 | 20 | ||||
| 250 | 165 | 250 | 268 | 280 | 48 | 319 | 350 | 355 | 405 | 12Φ23 | 12Φ28 | 22 | |||
| 300 | 178 | 270 | 322 | 315 | 50 | 370 | 400 | 410 | 460 | 12Φ23 | 12Φ28 | 24.6 | |||
| 350 | 190 | 290 | 350 | 335 | 50 | 429 | 460 | 470 | 520 | 16Φ23 | 16Φ28 | 26.5 | |||
| 400 | 216 | 310 | 375 | 355 | 55 | 480 | 515 | 525 | 580 | 16Φ28 | 16Φ31 | 28 | |||
| 450 | 222 | 330 | 415 | 405 | 55 | 530 | 548 | 565 | 585 | 640 | 20Φ28 | 20Φ31 | 30 | ||
| 500 | 229 | 350 | 450 | 425 | 55 | 582 | 609 | 620 | 650 | 715 | 20Φ28 | 20Φ34 | 31.5 | ||
| L | H1 | H2 | H3 | ΦB | ΦK | ΦD | nΦd | C | |||||||
| DN | #13 | #14 | PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | PN10 | PN16 | |||
| 600 | 267 | 390 | 520 | 525 | 55 | 682 | 720 | 725 | 770 | 780 | 840 | 20Φ31 | 20Φ37 | 30 | 36 |
| 700 | 292 | 430 | 600 | 565 | 75 | 794 | 794 | 840 | 840 | 895 | 910 | 24Φ31 | 24Φ37 | 32.5 | 39.5 |
| 800 | 318 | 470 | 660 | 640 | 75 | 901 | 901 | 950 | 950 | 1015 | 1025 | 24Φ34 | 24Φ40 | 35 | 43 |
| 900 | 330 | 510 | 725 | 718 | 100 | 1001 | 1001 | 1050 | 1050 | 1115 | 1125 | 28Φ34 | 28Φ40 | 37.5 | 46.5 |
| 1000 | 410 | 550 | 800 | 785 | 110 | 1112 | 1112 | 1160 | 1170 | 1230 | 1255 | 28Φ37 | 28Φ43 | 40 | 50 |
| 1200 | 470 | 630 | 950 | 940 | 110 | 1328 | 1328 | 1380 | 1390 | 1455 | 1485 | 32Φ40 | 32Φ49 | 45 | 57 |