BS 4504 / PN25

Flanges » BS Standard » BS 4504 / PN25
102 LJFF
Nominal Pipe Size Outside Dia. (mm) Dia. of Bolt Circle (mm) Dia. of Hole (mm) Number of Hole Dia. of Bore Thickness min. (mm) Chamfering Approx. Weight (Kg)
D C h do t X
10 90 60 14 4 21 14 3
15 95 65 14 4 25 14 3
20 105 75 14 4 31 16 4
25 115 85 14 4 38 16 4
32 140 100 18 4 47 18 5
40 150 110 18 4 53 18 5
50 165 125 18 4 65 20 5
65 185 145 18 8 81 22 6
80 200 160 18 8 94 24 6
100 235 190 22 8 120 26 6
125 270 220 26 8 145 28 6
150 300 250 26 8 174 30 6
200 360 310 26 12 226 32 6
250 425 370 30 12 281 35 8
300 485 430 30 16 333 38 8
350 555 490 33 16 365 42 8
400 620 550 36 16 416 46 8
450 670 600 36 20 467 50 8
500 730 660 36 20 519 56 8
600 845 770 39 20 622 68 8