公称通径
DN(mm) | d | L | D | | I型 | II型 | PN1.0 | PN1.6 | PN2.5 | PN4.0 | | 50 | 25 | 15 | 22 | 109 | 109 | 109 | 109 | | 65 | 38 | 15 | 22 | 129 | 129 | 129 | 129 | | 80 | 46 | 15 | 22 | 144 | 144 | 144 | 144 | | 100 | 72 | 15 | 24 | 164 | 164 | 170 | 170 | | 125 | 95 | 16 | 26 | 194 | 194 | 186 | 186 | | 150 | 114 | 19 | 29 | 221 | 221 | 226 | 226 | | 200 | 140 | 29 | 43 | 275 | 275 | 286 | 293 | | 250 | 188 | 29 | 43 | 330 | 331 | 343 | 355 | | 300 | 216 | 38 | 50 | 380 | 386 | 403 | 420 | | 350 | 263 | 41 | 52 | 440 | 446 | 460 | 477 | | 400 | 305 | 51 | 62 | 491 | 498 | 517 | 549 | | 450 | 356 | 51 | 62 | 541 | 558 | 567 | 574 | | 500 | 406 | 65 | 80 | 596 | 620 | 627 | 631 | | 600 | 482 | 70 | 90 | 698 | 737 | 734 | 750 |
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