管子外径Do外径D螺孔中心圆直径 D1连接凸出部分直径D2连接凸出部分高度f法兰厚度b螺栓孔径d数量n1014755032212124 M 10 × 40M 10 × 501518805540212124 M 10 × 40M 10 × 5020 25 906550214124 M 10 × 50M 10 × 6025 321007560214124 M 10 × 50M 10 × 6032 381209070216144 M 12 × 50M 12 × 7040 4513010080316144 M 12 × 50M 12 × 7050 5714011090316144 M 12 × 50M 12 × 7065 78160130110316144 M 12 × 50M 12 × 7080 89185150125318184 M 16 × 60M 16 × 80100108205 170145318184 M 16 × 60M 16 × 80125133235 200175320188 M 16 × 60M 16 × 80150159260 225200320188 M 16 × 60M 16 × 80175194290 255230322188 M 16 × 70M 16 × 80200219315280255322188 M 16 × 70M 16 × 80225245340 305280322188 M 16 × 70M 16 × 80250273370 3353103241812 M 16 × 70M 16 × 90300325435 39536242423 12 M 20 × 80M 20 × ##350377485 44541242623 12 M 20 × 80M 20 × ##400426535 49546242823 16 M 20 × 80M 20 × ##450478590 55051842823 16 M 20 × 80M 20 × ##500529640 60056843023 16 M 20 × 90M 20 × ##600630755 70567053025 20M 22 × 90M 22 × ##700720860 81077553225 24M 22 × 90M 22 × ##800820975 92088053230 24M 27 × 100M 27 × ##9009201075102098053430 24M 27 × 100M 27 × #####10201175 1120108053630 28M 27 × 110M 27 × ##P=0.6MPa单位：mm公称通径DN法 兰单 头直径*长度螺 栓双 头直径*长度光滑面平焊钢法兰 （JB81-59）管子外径Do外径D螺孔中心圆直径 D1连接凸出部分直径D2连接凸出部分高度f法兰厚度b螺栓孔径d数量n1014906040212144 M 12 × 40M 12 × 601518956545212144 M 12 × 40M 12 × 6020 251057555214144 M 12 × 50M 12 × 6025 321158565214144 M 12 × 50M 12 × 6032 3813510078216184 M 16 × 60M 16 × 7040 4514511085318184 M 16 × 60M 16 × 8050 57160125100318184 M 16 × 60M 16 × 8065 78180145120320184 M 16 × 60M 16 × 8080 89195160135320184 M...
