Quality Pipeline Anchor Flanges – from Buffalo Flange

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Pipeline Anchor Flanges from Buffalo Flange

Buffalo Flange – your supplier of choice for high quality anchor flanges! Email or call: In the US 713-943-9600, WATS 1-800-231-4174.

Anchor Flange Uses
Anchor Flanges are used to anchor pipe - often when crossing streams or ravines. They are a double hub piece of steel that is put into a special holder that is part of a piling to supports the pipeline and resist loading. The anchor structure is welded to the pipe and usually embedded in concrete.

Anchor flanges actually contain axial thermal expansion – that is axial thrust in pipelines. The assumed design temperature change is 90 degrees Fahrenheit. The thrust is transferred to the anchor foundation –in which the anchor is mounted. These flanges are used at crossings and points with changes in pipeline direction.

Pipeline Anchor Flanges – Materials and Specifications
The common material for anchor flanges is SA105 carbon steel. They are also made from SA694 – F52 and F60.

Anchor Flange from Buffalo Flange

The specifications are according to ANSI B16.5

Minimum yield is 36,000 and maximum yield is 65,000.

Pipeline Anchor Flange Sizes
Size range is nominal pipe size for 6” – 36” as indicated in the chart below

To supply an anchor flange we need the internal diameter or (id) of the pipe that the flanges fits to.

To order please email or call: In the US 713-943-9600, WATS 1-800-231-4174..

NOM. PIPE SIZE

6

8

10

12

14

16

18

20

22

24
26

28

30

32

34

36

DIAM OF BORE

Customer should specify the I.D. of the mating pipe.

PRE-BEVELED HUB DIA.

6-3/4

8-3/4

11

13

14-1/4

16-1/4

18-1/4

20-5/16

22-5/16

24-3/8
26-3/8

28-3/8

30-7/16

32-7/16

34-1/2

36-1/2

FOR 90 DEGREE FAHRENHEIT TEMP CHANGE

OUTSIDE DIA OF FLANGE THICKNESS OF FLANGE LENGTH THRU HUB DIAM OF HUB AT BASE

11-1/4 1-1/8 3-5/8 6-7/8

14-5/8 1-3/8 3-7/8 9

17-1/8 1-1/2 4 11-1/8

19-1/4 1-5/8 4-1/4 13-1/4

20-1/2 1-3/4 4-1/2 14-1/2

22-1/2 1-13/16 5 16-5/8

24-5/8 1-15/16 5-1/2 18-5/8

26-3/4 2 6 20-3/4

28-3/4 2-1/8 6-1/4 22-3/4

31 2-1/4 6-3/4 24-7/8
32-7/8 2-5/16 7-1/8 26-7/8

35 2-3/8 7-1/2 29

37 2-1/2 8 31

39 2-5/8 8-3/8 33

41 2-3/4 8-3/4 35

43 2-7/8 9-5/8 37