ASME系列主要法兰连接尺寸（B系列RF） Main flange connection size
| 公称压力PN(LB) Nominal pressure | 公称通径 Nominal diameter | D (mm) | D1 (mm) | D2 (mm) | C (mm) | f (mm) | n-Φd (N0-mm) | 螺栓直径(M) Bolt diameter | |
| NPS | DN | ||||||||
| 150 | 26" | 650 | 785 | 744.5 | 711 | 41.5 | 2 | 36-Φ22 | 3/4 |
| 28" | 700 | 835 | 795.3 | 762 | 44.5 | 2 | 40-Φ22 | 3/4 | |
| 30" | 750 | 885 | 846.1 | 813 | 44.5 | 2 | 44-Φ22 | 3/4 | |
| 32" | 800 | 940 | 900.2 | 864 | 46 | 2 | 48-Φ22 | 3/4 | |
| 34" | 850 | 1005 | 957.3 | 921 | 49.5 | 2 | 40-Φ25 | 7/8 | |
| 36" | 900 | 1055 | 1009.7 | 972 | 52.5 | 2 | 44-Φ25 | 7/8 | |
| 38" | 950 | 1125 | 1069.8 | 1022 | 54 | 2 | 40-Φ28 | 1 | |
| 40" | 100 | 1175 | 1120.6 | 1080 | 56 | 2 | 44-Φ28 | 1 | |
| 42" | 1050 | 1225 | 1171.4 | 1130 | 59 | 2 | 48-Φ28 | 1 | |
| 48" | 1200 | 1390 | 1335 | 1289 | 65.5 | 2 | 44-Φ32 | 1 1/8 | |
| 54" | 1350 | 1550 | 1492.3 | 1141 | 71.5 | 2 | 56-Φ32 | 1 1/8 | |
| 56" | 1400 | 1600 | 1543.1 | 1492 | 73.5 | 2 | 60-Φ32 | 1 1/8 | |
| 60" | 1500 | 1725 | 1662.2 | 1600 | 76.5 | 2 | 52-Φ35 | 1 1/4 | |
| 300 | 26" | 650 | 865 | 803.1 | 737 | 89 | 2 | 32-Φ35 | 1 1/4 |
| 28" | 700 | 920 | 857.3 | 787 | 89 | 2 | 36-Φ35 | 1 1/4 | |
| 30" | 750 | 990 | 920.8 | 845 | 94 | 2 | 36-Φ38 | 1 3/8 | |
| 32" | 800 | 1055 | 977.9 | 902 | 103.5 | 2 | 32-Φ41 | 1 1/2 | |
| 34" | 850 | 1110 | 1031.7 | 953 | 103.5 | 2 | 36-Φ41 | 1 1/2 | |
| 36" | 900 | 1170 | 1098.2 | 1010 | 103.5 | 2 | 32-Φ44 | 1 5/8 | |
| 38" | 950 | 1220 | 1140 | 1060 | 111.5 | 2 | 36-Φ44 | 1 5/8 | |
| 40" | 1000 | 1275 | 1190.8 | 1115 | 116 | 2 | 40-Φ44 | 1 5/8 | |
| 42" | 1050 | 1335 | 1244.6 | 1168 | 119.5 | 2 | 36-Φ48 | 1 3/4 | |
| 48" | 1200 | 1510 | 1416.1 | 1327 | 129 | 2 | 40-Φ51 | 1 7/8 | |
| 600 | 26" | 650 | 890 | 806.5 | 727 | 111.5 | 7 | 28-Φ44 | 1 5/8 |
| 28" | 700 | 955 | 863.8 | 784 | 116 | 7 | 28-Φ48 | 1 3/4 | |
| 30" | 750 | 1020 | 927.1 | 841 | 125.5 | 7 | 28-Φ51 | 1 7/8 | |
| 32" | 800 | 1085 | 984.3 | 895 | 130.5 | 7 | 28-Φ54 | 2 | |
| 34" | 850 | 1160 | 1054.1 | 953 | 141.5 | 7 | 24-Φ60 | 2 1/4 | |
| 36" | 900 | 1215 | 1104.9 | 1010 | 146.5 | 7 | 28-Φ60 | 2 1/4 | |
| 900 | 26" | 650 | 1020 | 901.7 | 762 | 135 | 7 | 20-Φ67 | 2 1/2 |
| 28" | 700 | 1105 | 971.6 | 819 | 148 | 7 | 20-Φ73 | 2 3/4 | |
| 30" | 750 | 1180 | 1035 | 876 | 155.5 | 7 | 20-Φ79 | 3 | |
| 32" | 800 | 1240 | 1092.2 | 927 | 160.5 | 7 | 20-Φ79 | 3 | |
所有评论仅代表网友意见，与本站立场无关。