Home > Products/Services > Waterworks > Ductile Iron and Cast Iron Valves > Butterfly Valves >
Catalogue
Product Show
Email:sales@dao-fang.com
Office in USA
1551 WINCHESTER DR.
WESTLAKE, OH
44145
Phone: +1 216 860 5238
Office in China (Mainland)
0703, FLOOR 7, BUILDING NO 2,
YARD NO 1, WU LI QIAO ER JIE,
CHAOYANG DISTRICT,
BEIJING 100024, CHINA
Phone:+86 13601389973
Tel:+86 (0)10 57571370
Fax: +86 (0)10 85816846
Literature

DOUBLE ECCENTRIC FLANGED BUTTERFLY VALVE

Model No. BTV-DF
Overall & Connection Dimensions & Weight
Manual Soft-sealing Double-eccentric Flanged Butterfly Valve
Type S Short Body, Type L Long Body
\
Materials of Main Parts
Names of Parts: Material:
Body Cast Iron or Ductile Iron
Disc Plated Ductile Iron
Shaft Stainless Steel
Bushing PTFE
Seat EPDM or NBR

Note:
There are 4 screwed holes on the flange of short body flanged butterfly valves shown as the figure, the others are through holes.
Those are all through holes for long body flanged butterfly valve.
Size
(DN)
Manual
actuator
D D1 d b f Short
body
N-do
Short
body
4-M
long
body
N-do
H H1 H2 L
short
body
L
long
body
L1 L2 L3 L4 Φ  Weight
(Kg)
short
body
Weight
(Kg)
long
body
100 3D-15 220 180 158 24 3 -- -- 8-Φ17.5 446 243 122 --- 190 64 48 121 180 180 --- 25
150 3D-20 285 240 212 26 3 --- --- 8-Φ 22 521.5 279 153 --- 210 74 58 128 194 180 --- 37
200 3D-50 340 295 268 28 3 4-Φ22 M20 8-Φ22 690 349 216 89 230 80 70 163 241 250 53 63
250 3D-120 390 350 320 28 8-Φ 22 M20  12-Φ 22 800 406 219 114 250 98 95 193  291 350 81 94
300 3D-30/250 450 400 370 28 4 8-Φ 22 M20  12-Φ22 959 542 267 114 270 449 178 358 473 300 128 148
350 3D-30/250  505 460 430 30 4 12-Φ 22 M20  16-Φ 22 1048 583 315 127 290 449 178 358 473 300 156 188
400 3D-30/250  565 515 482 30 4 12-Φ 26 M24 16-Φ 26 1120 620 350 140 310 449 178 358 473 300 205 273
450 3D-30/250  615 565 532 34 4 16-Φ 26 M24  20-Φ 26 1190 667 373 152 330 449 178 358 473 300 228 368
500 3D-30/400  670 620 585 34 4 16-Φ 26 M24  20-Φ 26 1280 702 428 152 350 486 196 384 528 300 242 289
600 3D-60/800 780 725 685 35 5 16-Φ 30 M27 20-Φ 30 1409 759 450 178 390 627 244 407 596 400 414 480
700 3D-60/800  895 840 800 40 5 20-Φ 30 M27 24-Φ 30 1613 885 528 229 430 627 244 407 596 400 522 615
800 3D-120/1500 1015 950 905 44 5 20-Φ 33 M30 24-Φ 33 1736 1013 573 241 470 635 270 491 711 300 689 818
900  3D-120/1500  1115 1050 1005 44 5 24-Φ 33 M30 28-Φ 33 1860 1071 639 241 510 635 270 491 711 300 804 956
1000 3D-120/2500 1230 1160 1110 50 5 24-Φ 36 M33 28-Φ 36 2107 1234 723 300 550 955 455 591 807 300 1177 1277
1200 3D-120/2500  1455 1380 1330 52 5 28-Φ 39 M36 32-Φ 39 2326 1343 833 350 630 955 455 591 808 300 1508 1764