PVC Pipes - Equivalent Length and Pressure Loss in Fittings
Minor loss in PVC and CPVC fittings expressed as equivalent length of straight pipe.
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Minor loss for PVC and CPVC fittings as Equivalent Length of Straight Pipe (feet) for water:
For full table with larger dimensions - rotate the screen!
| Friction Loss - Equivalent Length (feet of Straight Pipe) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fitting | Nominal Pipe Size (inches) | |||||||||||||
| 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | |
| 90o Elbow | 1.6 | 2.1 | 2.6 | 3.5 | 4.0 | 5.2 | 6.2 | 7.7 | 10.1 | 12.6 | 15.2 | 20 | 25.1 | 30 |
| 45o Elbow and 90o Long Sweep Radius Elbow | 0.8 | 1.1 | 1.4 | 1.8 | 2.2 | 2.8 | 3.3 | 4.1 | 5.1 | 6.7 | 8.1 | 10.6 | 13.4 | 15.9 |
| Gate valve, fully open | 0.4 | 0.6 | 0.7 | 0.9 | 1.1 | 1.4 | 1.7 | 2.0 | 2.7 | 3.4 | 4 | 5.3 | 6.7 | 8 |
| Tee Flow - Run | 1.0 | 1.4 | 1.7 | 2.3 | 2.7 | 3.5 | 4.1 | 5.1 | 6.7 | 8.4 | 10.1 | 13.3 | 16.7 | 20 |
| Tee Flow - Branch | 3.1 | 4.1 | 5.3 | 6.9 | 8.1 | 10.3 | 12.3 | 11.3 | 20.1 | 25.2 | 30.3 | 40 | 50.1 | 58 |
| Male/Female Adapter | 1.0 | 1.5 | 2.0 | 2.8 | 3.5 | 4.5 | 5.5 | 6.5 | 9.0 | 14 | ||||
The table can be used for other thermoplastic pipes materials with similar design.
Use the values to calculate minor pressure loss with the Equivalent Pipe Length Method.
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