Flanges Dimension & Grade
150# DIM & Weight
300# DIM & Weight
400# DIM & Weight
900# DIM & Weight
1500# DIM & Weight
2500# DIM & Weight
2500# DIM & Weight
Dimensions for Class 2500 Flanges :
Nom. Pipe Size(inches) |
O |
Q* |
R |
X |
No. of Holes |
Dia of Bolt Holes |
Bolt circle Dia |
YY* |
H |
J |
Y* |
B |
R |
YV |
BB |
C |
T |
| 1/2 | 133.4 | 30.2 | 35.1 | 42.9 | 4 | 22.4 | 88.9 | 73.2 | 21.3 | To Be Specified by purchaser | 39.6 | 3.0 | 39.6 | 22.9 | 23.6 | 28.4 | 28.4 |
| 3/4 | 139.7 | 31.8 | 42.9 | 50.8 | 4 | 22.4 | 95.3 | 79.2 | 26.7 | 42.9 | 3.0 | 42.9 | 28.2 | 29.0 | 31.8 | ||
| 1 | 158.8 | 35.1 | 50.8 | 57.2 | 4 | 25.4 | 108.0 | 88.9 | 33.5 | 47.8 | 3.0 | 47.8 | 35.1 | 35.8 | 35.1 | ||
| 1 1/4 | 184.2 | 38.1 | 63.5 | 73.2 | 4 | 28.4 | 130.0 | 95.3 | 42.2 | 52.3 | 4.8 | 52.3 | 43.7 | 44.5 | 38.1 | ||
| 1 1/2 | 203.2 | 44.5 | 73.2 | 79.2 | 4 | 31.8 | 146.1 | 111.3 | 48.3 | 60.5 | 6.4 | 60.5 | 50.0 | 50.5 | 44.5 | ||
| 2 | 235.0 | 50.8 | 91.9 | 95.3 | 8 | 28.4 | 171.5 | 127.0 | 60.5 | 69.9 | 7.9 | 69.9 | 62.5 | 63.5 | 50.8 | ||
| 21/2 | 266.7 | 57.2 | 104.6 | 114.3 | 8 | 31.8 | 196.9 | 142.7 | 73.2 | 79.2 | 7.9 | 79.2 | 75.4 | 76.2 | 57.2 | ||
| 3 | 304.8 | 66.5 | 127.0 | 133.4 | 8 | 35.1 | 228.6 | 168.1 | 88.9 | 91.9 | 9.7 | 91.9 | 91.4 | 92.2 | 63.5 | ||
| 4 | 355.6 | 76.2 | 157.2 | 165.1 | 8 | 41.1 | 273.1 | 190.5 | 114.3 | 108.0 | 11.2 | 108.0 | 116.8 | 117.6 | 69.9 | ||
| 5 | 419.1 | 91.9 | 185.7 | 203.2 | 8 | 47.8 | 323.9 | 228.6 | 141.2 | 130.0 | 11.2 | 130.0 | 144.5 | 144.5 | 76.2 | ||
| 6 | 482.6 | 108.0 | 215.9 | 235.0 | 8 | 53.8 | 368.3 | 273.1 | 168.4 | 152.4 | 12.7 | 152.4 | 171.5 | 171.5 | 82.6 | ||
| 8 | 552.5 | 127.0 | 269.7 | 304.8 | 12 | 53.8 | 438.2 | 317.5 | 219.2 | 177.8 | 12.7 | 177.8 | 222.3 | 222.3 | 95.3 | ||
| 10 | 673.1 | 165.1 | 323.9 | 374.7 | 12 | 66.5 | 539.8 | 419.1 | 273.1 | 228.6 | 12.7 | 228.6 | 277.4 | 276.4 | 108.0 | ||
| 12 | 762.0 | 184.2 | 381.0 | 441.5 | 12 | 73.2 | 619.3 | 463.6 | 323.9 | 254.0 | 12.7 | 254.0 | 328.2 | 328.7 | 120.7 |
