■主要外形尺寸及連接尺寸（JB/T79.1-1994）
| PN(MPa) | DN | L | D | D1 | D2 | D0 | f | b | H | H1 | Z-φ |
| 1.6 | 50 | 178 | 160 | 125 | 100 | 250 | 3 | 16 | 584 | 80 | 4-18 |
| 65 | 190 | 180 | 145 | 120 | 250 | 3 | 18 | 634 | 95 | 4-18 | |
| 80 | 203 | 195 | 160 | 135 | 250 | 3 | 20 | 688 | 100 | 8-18 | |
| 100 | 229 | 215 | 180 | 155 | 300 | 3 | 20 | 863 | 114 | 8-18 | |
| 125 | 254 | 245 | 210 | 185 | 350 | 3 | 22 | 940 | 132 | 8-18 | |
| 150 | 267 | 280 | 240 | 210 | 350 | 3 | 24 | 1030 | 150 | 8-23 | |
| 200 | 292 | 335 | 295 | 265 | 350 | 3 | 26 | 1277 | 168 | 12-23 | |
| 250 | 330 | 405 | 355 | 320 | 400 | 3 | 30 | 1491 | 203 | 12-25 | |
| 300 | 356 | 460 | 410 | 375 | 450 | 4 | 30 | 1701 | 237 | 12-25 | |
| 350 | 381 | 520 | 470 | 435 | 500 | 4 | 34 | 1875 | 265 | 16-25 | |
| 400 | 406 | 580 | 525 | 485 | 305 | 4 | 36 | 2180 | 300 | 16-30 | |
| 450 | 432 | 640 | 585 | 545 | 305 | 4 | 40 | 2440 | 325 | 20-30 | |
| 500 | 457 | 705 | 650 | 608 | 305 | 4 | 44 | 2860 | 360 | 20-34 | |
| 600 | 508 | 840 | 770 | 718 | 305 | 5 | 48 | 3450 | 425 | 20-41 | |
| 700 | 610 | 910 | 840 | 788 | 305 | 5 | 50 | 3960 | 460 | 24-41 | |
| 800 | 660 | 1020 | 950 | 898 | 305 | 5 | 52 | 4550 | 512 | 24-41 | |
| 900 | 711 | 1120 | 1050 | 998 | 250 | 5 | 54 | 5250 | 565 | 28-41 | |
| 1000 | 811 | 1255 | 1170 | 1110 | 250 | 5 | 56 | 5870 | 630 | 28-48 |
