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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High Performance Both Side Seal Ductile Iron Double Flange Double Eccentric Butterfly Valve
AFC's Double Eccentric Flange Butterfly Valve, FBGD, is a double eccentric flange butterfly valve, with soft seal on the body, it has the lowest operational torque, much less wearing, the dovetail seal design has been proven over half century service with reliability.
Using tangent pin to fasten between stem and disc gives higher strength to pin,no gap between pin and stem makes not easy to deform and no chance to leak from the disc and pin,the disc interchangeable as well
Production Control
| Quality System | |
| IQC | Check call incoming parts |
| IPQC | Check the production process is qualified |
| FQC | All valves are pressure tested |
| OQC | Check the valve ourlook and packing |
Opening Degree VS Flow Coefficient Kv
| KV Value | |||||||||
| Opening degree | |||||||||
| DN | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |
| 100 | 8 | 12 | 26 | 62 | 124 | 168 | 311 | 495 | 624 |
| 150 | 13 | 51 | 103 | 173 | 276 | 442 | 719 | 1041 | 1184 |
| 200 | 17 | 108 | 191 | 304 | 488 | 794 | 1260 | 1854 | 2152 |
| 250 | 22 | 177 | 309 | 485 | 768 | 1242 | 1989 | 2897 | 3363 |
| 300 | 26 | 252 | 454 | 698 | 1099 | 1786 | 2835 | 4212 | 4843 |
| 350 | 33 | 302 | 622 | 1152 | 1702 | 2203 | 3652 | 6152 | 7302 |
| 400 | 51 | 351 | 751 | 1402 | 2142 | 2822 | 4602 | 7602 | 8402 |
| 450 | 55 | 414 | 952 | 1632 | 2522 | 3402 | 5602 | 8962 | 11002 |
| 500 | 67 | 472 | 1077 | 1922 | 2572 | 4582 | 7922 | 11812 | 14242 |
| 600 | 80 | 750 | 1718 | 3062 | 4100 | 7304 | 12612 | 18802 | 22682 |
| 700 | 97 | 868 | 2168 | 3982 | 5178 | 9272 | 16052 | 23432 | 28852 |
| 800 | 194 | 1390 | 3036 | 5576 | 7766 | 12702 | 22152 | 33472 | 46282 |
| 900 | 290 | 1762 | 3902 | 6972 | 9582 | 16822 | 28222 | 43452 | 52902 |
| 1000 | 362 | 2190 | 5056 | 8502 | 11442 | 21052 | 36162 | 52102 | 63402 |
| 1200 | 506 | 2733 | 6746 | 12261 | 15971 | 29201 | 48902 | 73802 | 90802 |
Material
DN100-DN500
DN600-DN1200
Dimension: