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Pipe Thread Installation Torque Table Chart
Fluids, Piping and Hydraulic Design Data
Brass and steel Pipe thread (NPT) installation procedure and torque specification table and chart.
T.F.F.T = Assembly turns from finger tight with pipe thread sealant or teflon tape applied.
| Pipe Thread Size NPTF |
T.F.F.T. |
| 1/8 - 27 | 2 - 3 |
| 1/4 - 18 | 2 - 3 |
| 3/8 - 18 | 2 - 3 |
| 1/2 -14 | 2 - 3 |
| 3/4 - 14 | 2 - 3 |
| 1 - 11 1/2 | |
| 1 - 11 1/4 | 1.5 - 2.5 |
| 1 - 11 1/2 | 1.5 - 2.5 |
| 2 - 11 1/2 | 1.5 - 2.5 |
Torque
| Size | in-lbs | Newtons-m |
| 1/16" | 5.0 | 0.57 |
| 1/8" | 7.0 | 0.79 |
| 1/4" | 16 | 1.81 |
| 3/8" | 23 | 2.60 |
| 1/2" | 30 | 3.39 |
| 3/4" | 54 | 6.10 |
| 1" | 78 | 8.81 |
Related:
- Pipe Size Schedule Chart
- National Standard Taper Pipe Threads NPT Chart
- Fluid Flow Engineering and Design Resoures
- Hydraulic, Pneumatic Engineering & Design
- Schedule 40 Steel Pipe Sizes & Dimensions ANSI
- Schedule 80 Steel Pipe Sizes & Dimensions ANSI
- Standard Size Steel Pipe Weights With Contents Calculator
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