公称通径 DN | 主要外形尺寸 | L | D | D1 | D2 | D0 | f | b | n-Ød | H | H1 | 20 | 135 | 105 | 75 | 56 | 120 | 3 | 16 | 4-Ø14 | 120 | 142 | 25 | 145 | 115 | 85 | 65 | 120 | 120 | 142 | 32 | 160 | 140 | 100 | 75 | 140 | 4-Ø18 | 140 | 155 | 40 | 180 | 150 | 110 | 85 | 160 | 3.5 | 19 | 160 | 180 | 50 | 210 | 165 | 125 | 100 | 180 | 170 | 195 | 65 | 250 | 185 | 145 | 120 | 200 | 21 | 215 | 245 | 80 | 300 | 200 | 160 | 135 | 220 | 8-Ø18 | 240 | 280 | 100 | 350 | 220 | 180 | 155 | 240 | 265 | 315 | 125 | 400 | 250 | 210 | 180 | 320 | 22 | 340 | 400 | 150 | 460 | 285 | 240 | 210 | 320 | 8-Ø22 | 350 | 450 | 200 | 570 | 335 | 295 | 265 | 400 | 24 | 420 | 500 | |