Bolt Torque
Clean flange faces and faced pipe ends thoroughly prior to installation. Do not use joint or gasket compounds with Toruseal gaskets (assemble joints dry).
For use with standard flange bolts. Holes match AWWA C110, C111, and C115 flange drilling. They also match certain flange drilling classes of AWWA C207 and ANSI B16.1 and B16.42 flanges.
| Pipe Size (in.) |
Pressure Rating1 (psi) |
Gasket Weight (lbs.) |
Approx. Bolt Torque2 (ft-lbs) |
|---|---|---|---|
| 4 | 350 | 0.3 | 100 |
| 6 | 350 | 0.4 | 150 |
| 8 | 350 | 0.5 | 150 |
| 10 | 350 | 0.8 | 200 |
| 12 | 350 | 1.0 | 200 |
| 14 | 350 | 1.1 | 250 |
| 16 | 350 | 1.3 | 250 |
| 18 | 350 | 1.3 | 300 |
| 20 | 350 | 1.5 | 300 |
| 24 | 350 | 1.8 | 400 |
| 30 | 250 | 2.4 | 400 |
| 36 | 250 | 2.7 | 500 |
| 42 | 250 | 4.6 | 500 |
| 48 | 250 | 5.8 | 500 |
| 54 | 250 | 6.8 | 600 |
| 60 | 250 | 8.0 | 600 |
| 643 | 250 | 12.5 | 600 |
1.) Pressure rating designated is maximum water working pressure and is based on the maximum rating of C110, C115 or C153 flanges. American Toruseal gaskets meet the description of “specially designed gaskets” shown in the appendices of AWWA C110, C111, and C115, and “special gaskets” shown in the body of AWWA C111.
2.) Bolt torque applicable only to joints with Toruseal gaskets.
3.) The 64" Toruseal gasket contains an additional torus to accommodate bolting a 64" C115 or C153 flange to a standard 66" flange (see Flanged Fittings Standard Dimensions).