Flange Bolt Torque Recommendations for Magnatrol Valves
| Bolt Size | Hex Head Size | Valves Size(s) | Torque (ft. / lbs.) Bronze Valves |
Torque (ft. / lbs.) Stainless Valves |
|---|---|---|---|---|
| 1/4" - 20 | 7/16" | All "M" & "MR" Valves | 5 | N/A |
| 5/16" - 18 | 1/2" | 1/2" & 3/4" | 10 | 12 |
| 3/8" - 16 | 9/16" | 1" & 1-1/4" | 15 | 20 |
| 7/16" - 14 | 5/8" | 1-1/2" & 2" | 20 | 32 |
| 1/2" - 13 | 3/4" | 2-1/2" & 3" | 30 | 40 |
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