Fig 730 Heavy 3 Bolt Pipe Clamp
“APPLICATION: Fig. 730 Heavy 3 Bolt Pipe Clamps are recommended for the support of hot piping with insulation. Fig. 730 Heavy 3 Bolt Pipe Clamps have been designed to carry loads that are larger in magnitude than can be carried by the Fig. 727 Intermediate 3 Bolt Pipe Clamp. The 3 bolt design enables the attachment to the pipe clamp outside of the insulation. For high temperature piping with thick insulation and a loading larger than this clamp will carry, a Fig. 733 3 Bolt Pipe Clamp may be used. Or, if the temperature dictates, a Fig. 736, 739, 742 or 745 Alloy 3 Bolt Pipe Clamp may be used. The selection of the proper 3 Bolt Pipe Clamp depends upon the temperature of the piping system and load to be carried. Alloy pipe clamps and stainless steel pipe clamps are also available. The loads shown on the data chart are listed for 750 oF and 650 oF service.
CONSTRUCTION: Fig. 730 Heavy 3 Bolt Pipe Clamps are made from carbon steel plate or bar stock and are provided with three bolts and nuts.
FINISHES AVAILABLE: Black, Hot Dip Galvanized, Electro-Plated or Painted.
ORDERING: Specify figure number, nominal pipe diameter, name and finish, if other than black.
EXAMPLE: Fig. 730, 12”, Heavy 3 Bolt Pipe Clamp, HDG.”

Heavy 3 Bolt Pipe Clamp
Fig 730 Heavy 3 Bolt Pipe Clamp
NOM. PIPE DIA. (IN) | MAX LOAD 650°F | MAX LOAD 750°F | A" CTRLINE TO BOLT (IN) | B" CTRLINE TO END (IN) | C" GAP (IN) | D" CTRLINE TO TOP BOLT (IN) | E" CTRLINE TO TOP END (IN) | F | BoltL | G" Th | G" W | MATERIAL QTY | WT EA |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2 | 1200 | 1080 | 1 5/16 | 1 13/16 | 1 | 2 9/16 | 3 1/16 | 1/2 | 2 1/2 | 1/4 | 1 1/2 | 4 7/8 | 1.71 |
3/4 | 1200 | 1080 | 1 7/16 | 1 15/16 | 1 | 2 9/16 | 3 1/16 | 1/2 | 2 1/2 | 1/4 | 1 1/2 | 5 1/8 | 1.76 |
1 | 1200 | 1080 | 1 9/16 | 2 1/16 | 1 | 2 11/16 | 3 1/4 | 1/2 | 2 1/2 | 1/4 | 1 1/2 | 5 5/8 | 1.86 |
1 1/4 | 1200 | 1080 | 1 3/4 | 2 5/16 | 1 | 2 3/4 | 3 3/8 | 1/2 | 2 1/2 | 1/4 | 1 1/2 | 6 1/8 | 1.97 |
1 1/2 | 1900 | 1720 | 2 | 2 7/16 | 1 1/8 | 4 9/16 | 5 1/8 | 11/16 | 3 1/4 | 5/16 | 2 | 8 1/4 | 6.76 |
2 | 1900 | 1720 | 2 5/16 | 2 15/16 | 1 1/8 | 5 7/16 | 6 1/4 | 11/16 | 3 1/4 | 5/16 | 2 | 10 1/8 | 7.43 |
2 1/2 | 1900 | 1720 | 2 1/2 | 3 3/16 | 1 1/8 | 5 11/16 | 6 3/8 | 11/16 | 3 1/4 | 5/16 | 2 | 10 3/4 | 7.65 |
3 | 1900 | 1720 | 3 1/16 | 3 3/4 | 1 1/8 | 6 3/16 | 6 15/16 | 11/16 | 3 1/4 | 5/16 | 2 | 12 1/4 | 8.18 |
3 1/2 | 1900 | 1720 | 3 3/8 | 4 3/16 | 1 1/8 | 6 9/16 | 7 3/8 | 11/16 | 3 1/4 | 5/16 | 2 | 13 3/8 | 8.58 |
4 | 3000 | 2700 | 3 3/4 | 4 5/8 | 1 3/4 | 7 1/8 | 7 7/8 | 3/4 | 4 | 3/8 | 2 | 14 1/8 | 8.62 |
5 | 3000 | 2700 | 4 3/16 | 5 3/16 | 2 | 7 5/8 | 8 3/8 | 3/4 | 4 1/4 | 3/8 | 2 | 15 1/2 | 9.24 |
6 | 3500 | 3150 | 5 3/16 | 6 3/8 | 2 | 8 3/4 | 9 7/8 | 1 | 4 3/4 | 3/8 | 2 1/2 | 18 7/8 | 14.94 |
8 | 4800 | 4300 | 6 3/8 | 7 1/2 | 2 | 9 7/8 | 11 | 1 1/8 | 5 1/4 | 1/2 | 2 1/2 | 22 1/2 | 22.76 |
10 | 5400 | 4900 | 7 3/8 | 8 5/8 | 2 | 11 1/8 | 12 3/8 | 1 1/4 | 5 1/2 | 1/2 | 3 1/2 | 26 1/4 | 35.28 |
12 | 5400 | 4900 | 8 3/8 | 9 5/8 | 2 | 12 1/8 | 13 3/8 | 1 1/4 | 5 1/2 | 1/2 | 3 1/2 | 29 3/8 | 38.38 |
14 | 5400 | 4900 | 9 1/2 | 11 | 2 1/4 | 13 1/8 | 14 5/8 | 1 3/8 | 6 1/2 | 3/4 | 3 | 33 | 59.96 |
16 | 5400 | 4900 | 10 1/2 | 12 | 2 1/4 | 14 1/8 | 15 5/8 | 1 3/8 | 6 1/2 | 3/4 | 3 | 36 1/8 | 63.94 |
18 | 6500 | 5900 | 11 1/2 | 13 | 2 1/4 | 15 1/8 | 16 5/8 | 1 1/2 | 6 3/4 | 3/4 | 3 1/2 | 39 1/4 | 77.99 |
20 | 6500 | 5900 | 12 3/8 | 14 3/8 | 2 1/4 | 16 1/2 | 18 | 1 1/2 | 6 3/4 | 3/4 | 3 1/2 | 43 1/8 | 83.76 |
24 | 6500 | 5900 | 15 | 16 5/8 | 2 1/4 | 18 5/8 | 20 1/4 | 1 1/2 | 7 | 7/8 | 4 | 50 1/4 | 119.27 |
26 | 6500 | 5900 | 16 1/4 | 18 1/2 | 2 1/2 | 20 1/2 | 22 7/8 | 1 1/2 | 7 1/4 | 7/8 | 4 | 55 5/8 | 130.01 |
28 | 6500 | 5900 | 18 | 20 1/2 | 2 1/2 | 22 1/4 | 24 7/8 | 1 1/2 | 7 1/4 | 7/8 | 4 | 60 3/4 | 140.17 |
30 | 9600 | 8750 | 19 | 21 3/4 | 2 3/4 | 24 | 26 7/8 | 1 3/4 | 8 1/4 | 1 | 5 | 65 1/8 | 210.00 |
32 | 10500 | 9500 | 21 1/8 | 23 1/8 | 2 3/4 | 25 1/2 | 28 5/8 | 1 3/4 | 8 1/4 | 1 | 6 | 69 3/8 | 261.13 |
34 | 11600 | 10500 | 22 | 25 1/2 | 3 1/4 | 28 1/4 | 31 7/8 | 1 3/4 | 8 3/4 | 1 | 6 | 75 5/8 | 283.53 |
36 | 12400 | 11300 | 23 | 26 1/2 | 3 1/4 | 29 1/4 | 32 7/8 | 1 3/4 | 8 3/4 | 1 | 6 | 78 7/8 | 294.57 |
42 | 12400 | 11300 | 29 | 32 3/4 | 3 1/4 | 35 3/8 | 39 3/8 | 1 3/4 | 8 3/4 | 1 | 6 | 95 | 349.34 |