
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:
Suzhou Alpine Flow Control Co., Ltd
Alpine Flow Control (SuZhou) Co.,Ltd with major focus in the water valve design and manufacturing. The Management staff have over 30 years experience in the water valve design and manufacturing, combined with the high-tech electronics manufacturing experience of multi-national listed companies. This unique combination of traditional and high-tech industry management experience and skills have given us an advantage over the traditional valve manufacturer. More than 40% of our staff are technical staff with knowledge and experience in valve and mechanical design/manufacturing...
Proven and supported by on-going quality and reliability test. AFC
has built it’s own in house reliability test laboratory to ensure
that our products not only meet the international quality and
reliability test specification such as the EN-1074-1/2 T-key and
R-key test, but also comply to various international valves
standards and specifications.
We already achieved WRAS certificate in 2011, and obtained FM
approval in early of 2012,
and UL for gate valve. Today, we have got many international famous
certificate for drinking water such as WRAS, NSF, AS, CE on certain
products, and our product range has expended to double eccentric
butterfly valve, rubber disc check valve ,non-slam check valve,
both clean water & sewage water air valve, hydraulic control
valve and penstock and we always focus on water system valves.
In 2018 year, our big plan is developing pressure management valves which has been proved to be a very helpful tool and economic way to save the leakage rate with limited investment and get a fast return in couple months and power savings
In addition, we have a special project team to focus on custom
design and special requirement
Our Mission :
Be the market leader in Water Valve Flow Control
Company culture :
Technology through Innovation
Quality product and service through Quality people
Business growth through Cohesive partnership