DL Series flanged concentric butterfly valve is with centric disc and bonded liner,and have all same common features of other wafer/lug series,these valves are featured by a higher strength of the body and better resistance to pipe pressures as safey factor. Having all same common features of the univisal series, these valves are featured by a higher strength of the body and better resistance to pipe pressures as safety factor.
1. Short Length pattern design
2. Vulcanised rubber lining
3. Low torque operation
4. Streamlined disc shape
5. ISO top flange as standard
6. Bi-directional shut-off seat
7. Suitable for high cycling frequencies
1. Water works and water resource project
2. Enviroment Protection
3. Public Facilities
4. Power and Public Utilities
5. Building industry
6. Petroleum/ Chemical
7. Steel. Metallurgy
Size | A | B | b | f | D | K | d | F | N-do | L | L1 | D1 | D2 | N-d1 | a° | J | X | L2 | Φ2 | Weight (kg) |
(mm) | ||||||||||||||||||||
50 | 83 | 120 | 19 | 3 | 165 | 125 | 99 | 13 | 4-19 | 108 | 111 | 65 | 50 | 4-7 | 45 | 13.8 | 3 | 32 | 12.6 | 7.6 |
65 | 93 | 130 | 19 | 3 | 185 | 145 | 118 | 13 | 4-19 | 112 | 115 | 65 | 50 | 4-7 | 45 | 13.8 | 3 | 32 | 12.6 | 9.7 |
80 | 100 | 145 | 19 | 3 | 200 | 160 | 132 | 13 | 8-19 | 114 | 117 | 65 | 50 | 4-7 | 45 | 13.8 | 3 | 32 | 12.6 | 10.6 |
100 | 114 | 155 | 19 | 3 | 220 | 180 | 156 | 13 | 8-19 | 127 | 130 | 90 | 70 | 4-10 | 45 | 17.77 | 5 | 32 | 15.77 | 13.8 |
125 | 125 | 170 | 19 | 3 | 250 | 210 | 184 | 13 | 8-19 | 140 | 143 | 90 | 70 | 4-10 | 45 | 20.92 | 5 | 32 | 18.92 | 18.2 |
150 | 143 | 190 | 19 | 3 | 285 | 240 | 211 | 13 | 8-23 | 140 | 143 | 90 | 70 | 4-10 | 45 | 20.92 | 5 | 32 | 18.92 | 21.7 |
200 | 170 | 205 | 20 | 3 | 340 | 295 | 266 | 13 | 8-23 | 152 | 155 | 125 | 102 | 4-12 | 45 | 24.1 | 5 | 45 | 22.1 | 31.8 |
250 | 198 | 235 | 22 | 3 | 395 | 350 | 319 | 13 | 12-23 | 165 | 168 | 125 | 102 | 4-12 | 45 | 31.45 | 8 | 45 | 28.45 | 44.7 |
300 | 223 | 280 | 25 | 4 | 445 | 400 | 370 | 20 | 12-23 | 178 | 182 | 125 | 102 | 4-12 | 45 | 34.6 | 8 | 45 | 31.6 | 57.9 |
350 | 270 | 310 | 25 | 4 | 505 | 460 | 429 | 20 | 16-23 | 190 | 194 | 150 | 125 | 4-14 | 45 | 34.6 | 8 | 45 | 31.6 | 81.6 |
400 | 300 | 340 | 25 | 4 | 565 | 515 | 480 | 20 | 16-28 | 216 | 221 | 175 | 140 | 4-18 | 45 | 36.15 | 10 | 51 | 33.15 | 106 |
450 | 340 | 375 | 26 | 4 | 615 | 565 | 530 | 20 | 20-28 | 222 | 227 | 175 | 140 | 4-18 | 45 | 40.95 | 10 | 51 | 37.95 | 147 |
500 | 355 | 430 | 27 | 4 | 670 | 620 | 582 | 22 | 20-28 | 229 | 234 | 175 | 140 | 4-18 | 45 | 44.12 | 10 | 57 | 41.12 | 165 |
600 | 410 | 500 | 30 | 5 | 780 | 725 | 682 | 22 | 20-31 | 267 | 272 | 210 | 165 | 4-22 | 45 | 51.62 | 16 | 70 | 50.65 | 235 |
700 | 478 | 560 | 33 | 5 | 895 | 840 | 794 | 30 | 24-31 | 292 | 299 | 300 | 254 | 8-18 | 22.5 | 71.35 | 18 | 66 | 63.35 | 238 |
800 | 529 | 620 | 35 | 5 | 1015 | 950 | 901 | 30 | 24-34 | 318 | 325 | 300 | 254 | 8-18 | 22.5 | 71.35 | 18 | 66 | 63.35 | 475 |
900 | 584 | 665 | 38 | 5 | 1115 | 1050 | 1001 | 34 | 28-34 | 330 | 337 | 300 | 254 | 8-18 | 22.5 | 84 | 20 | 118 | 75 | 595 |
1000 | 657 | 735 | 40 | 5 | 1230 | 1160 | 1112 | 34 | 28-37 | 410 | 417 | 300 | 254 | 8-18 | 22.5 | 95 | 22 | 142 | 85 | 794 |
1200 | 799 | 917 | 45 | 5 | 1455 | 1380 | 1328 | 34 | 32-40 | 470 | 478 | 350 | 298 | 8-22 | 22.5 | 117 | 28 | 150 | 105 | 1290 |
1400 | 919 | 1040 | 46 | 5 | 1675 | 1590 | 1530 | 40 | 36-44 | 530 | 538 | 415 | 356 | 8-33 | 22.5 | 134 | 32 | 200 | 120 | 2130 |
1500 | 965 | 1050 | 48 | 5 | 1785 | 1700 | 1630 | 40 | 36-44 | 570 | 580 | 415 | 356 | 8-32 | 22.5 | 156 | 36 | 200 | 140 | 3020 |