Suzhou Alpine Flow Control Co., Ltd |
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Ductile Iron Soft Seated Double Flange Double Eccentric Butterfly
Valve
Description:
AFC's Double Eccentric Flange Butterfly Valve (we call abbreviated
FBGD) is an newly advanced design butterfly valve. With double
eccentric design and soft rubber seal on the body, the operational
toque is one of the lowest among all the butterfly valves and can
be sealed in both directions,disc and stem are very strong without
any deformation. Size DN100-DN500mm,disc is flat shape,
allowing bigger rubbish to flow through. DN500 to DN1200mm disc are
arch shape with stronger ribs on the back, causing less compression
and wearing of seal rubber to increase the life of rubber seal.
Also, water head loss reduced a lot and turbulence minimized,thus
flow through disc energy is saved and lowering the pumping cost.The
DN600 Butterfly Valve can opertated more than 10,000 times
and still working.
Operational Torque:
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 |
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 |
Dimension: