PIPE SIZE OD ID for AFR ID for StubEnd T No. of BH BH BCD
2 6 2-3/4 2-7/16 1/2 4 3/4 4-3/4
2-1/2 7 3-1/4 2-15/16 1/2 4 3/4 5-1/2
3 7-1/2 4 3-9/16 1/2 4 3/4 6
3-1/2 8-1/2 4-5/8 4-1/16 1/2 8 3/4 7
4 9 5-1/8 4-9/16 1/2 8 3/4 7-1/2
5 10 6-1/16 5-5/8 1/2 8 7/8 8-1/2
6 11 7-1/4 6-3/4 1/2 8 7/8 9-1/2
8 13-1/2 9-3/8 8-3/4 1/2 8 7/8 11-3/4
10 16 11-3/8 10-7/8 1/2 12 1 14-1/14
12 19 13-5/8 12-7/8 1/2 12 1 17
TUBE SIZE OD ID for AFR ID for StubEnd T No. of BH BH BCD
2 6 2-3/8 2-1/8 1/2 4 3/4 4-3/4
2-1/2 7 2-7/8 2-5/8 1/2 4 3/4 5-1/2
3 7-1/2 3-5/8 3-1/8 1/2 4 3/4 6
3-1/2 8-1/2 4 3-5/8 1/2 8 3/4 7
4 9 4-5/8 4-1/8 1/2 8 3/4 7-1/2
5 10 5-1/2 5-1/8 1/2 8 7/8 8-1/2
6 11 6-5/8 6-1/8 1/2 8 7/8 9-1/2
8 13-1/2 8-3/4 8-1/8 1/2 8 7/8 11-3/4
10 16 10-5/8 10-1/8 1/2 12 1 14-1/4
12 19 12-3/4 12-1/8 1/2 12 1 17
14 21 14-3/4 14-1/4 1/2 12 1-1/8 18-3/4
16 23-1/2 16-3/4 16-1/4 1/2 16 1-1/8 21-1/4
18 25 18-3/4 18-1/4 1/2 16 1-1/4 22-3/4
20 27-1/2 20-3/4 20-1/4 1/2 20 1-1/4 25
24 32 24-3/4 24-1/4 1/2 20 1-3/8 29-1/2
30 38-3/4 30-7/8 30-1/4 1/2 28 1-3/8 36
36 46 36-7/8 36-1/4 1/2 32 1-5/8 42-3/4
Manufactured from ASTM A240 stainless steel plate
Alloys available include 304L, 316L, 317L, carbon steel; others upon request.
Back-up flange is used in conjunction with an angle face ring or stub end to form a “VanStone” joint allowing the flange infinite positioning as it spins freely behind the ring/stub-end.
