公称通径DN(mm) | L | D 2 | D 3 | 公称通径DN(mm) | L | D 2 | D 3 | H77X | H77H H77Y H77W | H77X | H77H H77Y H77W | 50 | 43 | 100 | 43 | 46 | 400 | 140 | 485 | 376 | 390 | 80 | 64 | 135 | 71 | 80 | 450 | 152 | 545 | 427 | 427 | 100 | 64 | 155 | 91.5 | 94 | 500 | 152 | 608 | 479 | 490 | 125 | 70 | 185 | 115 | 118 | 600 | 178 | 718 | 579 | 588 | 150 | 76 | 210 | 141 | 145 | 700 | 229 | 800 | 675 | 686 | 200 | 89 | 265 | 191 | 200 | 800 | 241 | 905 | 774 | 784 | 250 | 114 | 320 | 230 | 250 | 900 | 241 | 1005 | 875 | - | 300 | 114 | 320 | 230 | 250 | 900 | 241 | 1005 | 875 | - | 350 | 127 | 435 | 340 | 340 | 1200 | 350 | 1325 | 1164 | - | | |