BLIND FLANGES
BLIND FLANGES
We can define the blind flange as a plate that is used to cover the end of a pipe. Here a flange joint is a connection of pipes in which the connecting pieces contains flanges with which the parts are bolted together.
- Size : 1/2" (15 NB) to 48" (1200NB)
- Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
- Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
- DIN : DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636,DIN 2637, DIN 2638, DIN 2673
- PN : PN6, PN10, PN16, PN25, PN40
- BS : BS 4504 , BS 4504, BS 1560, BS 10
| Nominal Pipe Size (MM / INCH) |
Flange Dia O |
Dia of Bolt Circle A |
Dia of Bolt Holes D |
No. of Holes | Thk of Flange C |
Dia of Hub E |
Length through Hub | Dia of Bore | Dia of R/F R |
Depth of Socket F |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S/O & S/W Y |
WN Y |
LJ Y |
S/O & S/W B |
LJ B |
|||||||||
| 15 / 1/2 | 88.9 | 60.3 | 15.9 | 4 | 11.1 | 30.2 | 15.9 | 47.6 | 15.9 | 22.3 | 22.9 | 34.9 | 9.5 |
| 20 / 3/4 | 98.4 | 69.9 | 15.9 | 4 | 12.7 | 38.1 | 17.5 | 55.6 | 17.5 | 28.6 | 28.7 | 42.9 | 12.7 |
| 25 / 1 | 107.9 | 79.4 | 15.9 | 4 | 14.3 | 49.2 | 17.5 | 55.6 | 17.5 | 34.9 | 34.9 | 50.8 | 14.3 |
| 32 / 1 1/4 | 117.5 | 88.9 | 15.9 | 4 | 15.9 | 61.5 | 22.2 | 63.5 | 22.2 | 43.2 | 42.9 | 63.5 | 14.3 |
| 40 / 1 1/2 | 127.0 | 98.4 | 15.9 | 4 | 15.9 | 67.1 | 22.2 | 61.9 | 22.2 | 49.5 | 50.0 | 73.0 | 15.9 |
| 50 / 2 | 152.4 | 120.7 | 19.0 | 4 | 19.0 | 77.8 | 28.6 | 69.8 | 28.6 | 61.2 | 61.2 | 92.0 | 19.0 |
| 65 / 2 1/2 | 177.8 | 139.7 | 19.0 | 4 | 22.2 | 90.5 | 28.6 | 69.8 | 28.6 | 74.7 | 75.4 | 106.4 | 22.2 |
| 80 / 3 | 190.5 | 152.4 | 19.0 | 4 | 22.2 | 103.2 | 33.3 | 79.4 | 33.3 | 90.7 | 90.9 | 127.0 | 23.8 |
| 100 / 4 | 228.6 | 190.5 | 19.0 | 8 | 23.8 | 114.3 | 33.3 | 88.9 | 33.3 | 115.0 | 114.6 | 157.2 | 23.8 |
| 125 / 5 | 254.0 | 215.9 | 22.2 | 8 | 23.8 | 141.3 | 39.7 | 98.4 | 39.7 | 141.0 | 141.3 | 185.7 | 23.8 |
| 150 / 6 | 279.4 | 241.3 | 22.2 | 8 | 25.4 | 168.3 | 39.7 | 98.4 | 39.7 | 168.0 | 168.1 | 215.9 | 25.4 |
| 200 / 8 | 343.0 | 304.8 | 22.2 | 8 | 28.6 | 219.1 | 47.6 | 120.7 | 47.6 | 219.0 | 219.2 | 270.0 | 28.6 |
| 250 / 10 | 406.4 | 362.0 | 25.4 | 12 | 30.2 | 273.1 | 50.8 | 133.4 | 50.8 | 273.0 | 273.1 | 323.9 | 30.2 |
| 300 / 12 | 482.6 | 431.8 | 25.4 | 12 | 31.8 | 323.9 | 55.6 | 147.6 | 55.6 | 324.0 | 324.1 | 381.0 | 31.8 |
| 350 / 14 | 533.4 | 476.2 | 28.6 | 12 | 34.9 | 356.0 | 55.6 | 171.4 | 55.6 | 356.0 | 356.3 | 412.8 | 34.9 |
| 400 / 16 | 596.9 | 539.8 | 28.6 | 16 | 36.5 | 406.4 | 57.1 | 190.5 | 57.1 | 406.0 | 406.4 | 469.9 | 36.5 |
| 450 / 18 | 635.0 | 577.8 | 31.8 | 16 | 39.7 | 457.0 | 60.3 | 203.2 | 60.3 | 457.0 | 457.2 | 533.4 | 39.7 |
| 500 / 20 | 698.5 | 635.0 | 31.8 | 20 | 42.9 | 508.0 | 63.5 | 228.6 | 63.5 | 508.0 | 508.6 | 584.2 | 42.9 |
| 600 / 24 | 812.8 | 749.3 | 34.9 | 20 | 47.6 | 663.6 | 82.5 | 152.4 | 111.1 | 615.9 | 619.5 | 692.1 | 63.5 |
