Straight Thread Torque Values for Various CPV Fittings
- The following torque values should be used for tightening straight thread O-Ring sealed threaded connections.
- The torque values shown apply to steel and/or stainless steel components.
- It is recommended not to exceed ten percent (10%) of the values shown.
| O-SEAL® Size (Product Category: 59R, 59T) | Mark VIII® Size (Product Category: H859, H823, H815, H816, H805) Direct Weld® Size (Product Category: 45) |
Straight Thread | Torque |
|---|---|---|---|
| Size | Ft.-Lbs. | ||
| —— | 1/8″ [-02] | 5/16″-24 | 7 |
| 1/8″ [-0] | 1/4″ [-04] | 7/16″-20 | 13 |
| 1/4″ [-1] | 3/8″ [-06] | 9/16″-18 | 22 |
| 3/8″ [-2] | 1/2″ [-08] | 3/4″-16 | 37 |
| —— | 5/8″ [-10] | 7/8″-14 | 44 |
| 1/2″ [-3] | 3/4″ [-12] | 1.063″-12 | 70 |
| 3/4″ [-4] | 1.00″ [-16] | 1.313″-12 | 111 |
| 1.00″ [-5] | 1.25″ [-20] | 1.625″-12 | 148 |
| 1.25″ [-6] | 1.50″ [-24] | 1.875″-12 | 155 |
| 1.50″ [-7] | 2.00″ [-32] | 2.500″-12 | 221 |