Fig 812 Two Rod Roll Type Hanger
APPLICATION: A Fig. 812 Two Rod Roll Type Hanger is used to support piping where 1.) significant movement along the axis of the piping at the support location occurs due to thermal expansion or contraction of the piping, 2.) support is to be provided by two rods attached to a structural member above the pipe and 3.) substantial vertical adjustment of the pipe roll is necessary or desirable.
A Roll Type Hanger allows axial movement of the piping with virtually a negligible amount of frictional resistance to the movement. In addition, the support remains virtually vertical resulting in very little angular rotation of the support rod. Vertical adjustment is achieved by changing the elevation of the adjustment nuts and is only limited by the amount of threading on the hanger rods.
CONSTRUCTION: A Fig. 812 Two Rod Roll Type Hanger consists of a Fig. 806 Cast Iron Pipe Roll, two cast iron sockets, one on each end as shown in the picture, and a carbon steel roll rod.
NOTE: See size selection chart for assistance in determining the appropriate Two Rod Roll Type Hanger for your application.
FINISHES AVAILABLE: Black, Hot Dip Galvanized, Electro-Plated or Painted.
ORDERING: Specify figure number, roll size, name and finish, if other than black.
NOTE: Hanger rods and nuts are to be ordered separately.
EXAMPLE: Fig. 812, Size 6, Two Rod Roll Type Hanger, HDG.

Two Rod Roll
Fig 812 Two Rod Roll Type Hanger
ROLL SIZE | MAX. REC. LOAD (LBS) | A (IN) | B (IN) | C (IN) | D (IN) | E (IN) | F (IN) | H (IN) | J (IN) | WT EA |
---|---|---|---|---|---|---|---|---|---|---|
2 | 600 | 3/8 | 4 3/8 | 5 5/8 | 2 7/8 | 5/8 | 3/8 | 1 9/16 | 3/4 | 0.76 |
2 1/2 | 660 | 1/2 | 5 1/8 | 6 1/2 | 3 1/8 | 7/8 | 1/2 | 1 7/8 | 7/8 | 1.185 |
3 | 700 | 1/2 | 5 5/8 | 7 | 3 3/4 | 7/8 | 1/2 | 2 1/8 | 7/8 | 1.385 |
3 1/2 | 750 | 1/2 | 5 7/8 | 7 1/4 | 3 7/8 | 7/8 | 1/2 | 2 1/2 | 7/8 | 1.5 |
4 | 750 | 5/8 | 7 | 8 9/16 | 4 3/4 | 7/8 | 1/2 | 2 13/16 | 1 | 2.11 |
5 | 750 | 5/8 | 8 1/8 | 9 3/4 | 5 3/4 | 7/8 | 5/8 | 3 3/8 | 1 1/8 | 2.57 |
6 | 1070 | 3/4 | 9 3/4 | 11 5/8 | 6 7/8 | 1 | 3/4 | 3 15/16 | 1 3/8 | 4.395 |
7 | 1070 | 3/4 | 10 1/2 | 12 1/2 | 8 | 1 | 3/4 | 4 1/2 | 1 5/8 | 5.16 |
8 | 1350 | 7/8 | 12 1/8 | 14 1/4 | 8 7/8 | 1 1/8 | 7/8 | 5 1/8 | 1 1/2 | 7.425 |
10 | 1730 | 7/8 | 14 | 16 1/4 | 11 | 1 1/8 | 7/8 | 6 1/4 | 1 3/4 | 9.17 |
12 | 2400 | 7/8 | 15 3/4 | 18 | 13 | 1 1/8 | 7/8 | 7 5/16 | 2 | 13.15 |
14 | 3130 | 1 | 17 3/4 | 20 1/2 | 14 1/4 | 1 3/8 | 1 | 8 3/8 | 2 5/8 | 18.745 |
16 | 3970 | 1 | 20 9/16 | 23 3/8 | 16 7/8 | 1 3/8 | 1 | 9 1/2 | 2 5/8 | 24.54 |
18 | 4200 | 1 | 22 | 14 7/8 | 18 5/16 | 1 3/8 | 1 | 10 7/16 | 2 3/4 | 27.2 |
20 | 4550 | 1 1/4 | 24 | 27 | 20 1/4 | 1 1/2 | 1 1/4 | 11 1/2 | 3 | 32 |
24 | 6160 | 1 1/2 | 28 3/4 | 32 | 24 1/4 | 1 3/4 | 1 1/4 | 13 13/16 | 3 5/8 | 54 |
30 | 7290 | 1 3/4 | 35 5/8 | 39 3/4 | 30 1/4 | 2 1/8 | 1 1/4 | 17 1/4 | 4 1/2 | 82 |