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DYQ340 Eccentric semi-ball valve
Jacket type ball valve body into the overall, valve cover, were fitted to the upper seat from the upper load, sphere, seals, etc.Its advantage is repair and replace seat, don't need to ball valve removed from the pipeline, only to open the cover, push the ball out, this to the underground pipeline, especially atomic energy industrial ball valve to bring great convenience.
The main connection size
PN1.6MPa
| DN | d | L | D | D1 | D2 | b | f | Z-¦Õd1 |
| 50 | 42 | 230 | 160 | 125 | 100 | 16 | 3 | 4-¦Õ18 |
| 65 | 58 | 290 | 180 | 145 | 120 | 18 | 3 | 4-¦Õ18 |
| 80 | 65 | 310 | 192 | 160 | 135 | 22 | 3 | 8-¦Õ18 |
| 100 | 82 | 350 | 215 | 180 | 155 | 22 | 3 | 8-¦Õ18 |
| 125 | 120 | 400 | 245 | 210 | 185 | 24 | 3 | 8-¦Õ18 |
| 150 | 132 | 480 | 280 | 240 | 210 | 26 | 3 | 8-¦Õ23 |
| 200 | 170 | 600 | 335 | 295 | 265 | 28 | 3 | 12-¦Õ23 |
| 250 | 225 | 730 | 405 | 355 | 320 | 30 | 3 | 12-¦Õ25 |
| 300 | 257 | 838 | 460 | 410 | 375 | 32 | 4 | 12-¦Õ25 |
| 350 | 335 | 889 | 520 | 470 | 435 | 34 | 4 | 16-¦Õ25 |
PN2.5MPa
| DN | d | L | D | D1 | D2 | b | f | Z-¦Õd1 |
| 50 | 42 | 230 | 160 | 125 | 100 | 20 | 3 | 4-¦Õ18 |
| 65 | 58 | 290 | 180 | 145 | 120 | 22 | 3 | 8-¦Õ18 |
| 80 | 65 | 310 | 195 | 160 | 135 | 22 | 3 | 8-¦Õ18 |
| 100 | 82 | 350 | 230 | 190 | 160 | 24 | 3 | 8-¦Õ23 |
| 125 | 120 | 400 | 270 | 220 | 188 | 28 | 3 | 8-¦Õ25 |
| 150 | 132 | 480 | 300 | 250 | 218 | 30 | 3 | 8-¦Õ25 |
| 200 | 170 | 600 | 360 | 310 | 278 | 34 | 3 | 12-¦Õ25 |
| 250 | 225 | 730 | 425 | 370 | 332 | 36 | 3 | 12-¦Õ30 |
| 300 | 257 | 838 | 485 | 430 | 390 | 40 | 4 | 16-¦Õ30 |
| 350 | 335 | 889 | 550 | 490 | 448 | 44 | 4 | 16-¦Õ34 |
Note: the length of the structure (GB 12221-89, flange type and dimension regulation according to JB79, can also according to GB9113
