For pipes with a nominal diameter from 1/2" to 24 inches
There is certain amount of pressure loss in straight pipe and in addition valves and fittings in a section of pipe will add to the overall pressure loss that occurs in a section of pipe.
Calculate friction losses for fittings and valves in a section of pipe expressed in equivalent length of pipe (in feet).
Your section of 2" pipe has 2 x gate valves, 2 x 90° elbows, 4 x straight true tee's and 12 branch tee's
Select 2" for nominal pipe size and enter 2 gate valves, 2 90° elbows, 4 straight true tee's and 12 branch tee's.
Result = this will add 174.2 feet in straight pipe.
| Equivalent Length in Feet for Fittings and Valves | |||||||||
| Fitting/Valve | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" | 3" | 4" |
| Tee Run | 1 | 1.4 | 1.7 | 2.3 | 2.7 | 4 | 4.9 | 6.1 | 7.9 |
| Tee Branch | 3.8 | 4.9 | 6 | 7.3 | 8.4 | 12 | 14.7 | 16.4 | 22 |
| 90° Ellbow | 1.5 | 2 | 2.5 | 3.8 | 4 | 5.7 | 6.9 | 7.9 | 11.4 |
| 45° Ellbow | 0.8 | 1.1 | 1.4 | 1.8 | 2.1 | 2.6 | 3.1 | 4 | 5.1 |
| Swing Check Valve | 5.2 | 6.9 | 8.7 | 11.5 | 13.4 | 17.2 | 20.6 | 25.5 | 33.6 |
| Angle Valve | 7.8 | 10.3 | 13.1 | 17.3 | 20.1 | 25.8 | 30.9 | 38.4 | 50.3 |
| Globe Valve | 17.6 | 23.3 | 29.7 | 39.1 | 45.6 | 58.6 | 20 | 86.9 | 114 |
| Gate Valve | 0.4 | 0.6 | 0.7 | 0.9 | 1.1 | 1.4 | 1.7 | 2 | 2.7 |
| Equivalent Length in Feet for Fittings and Valves | |||||||||
| Fitting/Valve | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 24" |
| Tee Run | 12.3 | 14 | 17.5 | 20 | 25 | 27 | 32 | 35 | 42 |
| Tee Branch | 32.7 | 49 | 57 | 67 | 78 | 88 | 107 | 118 | 137 |
| 90° Ellbow | 16.7 | 21 | 26 | 32 | 37 | 43 | 53 | 58 | 67 |
| 45° Ellbow | 8 | 10.6 | 13.5 | 15.5 | 18 | 20 | 23 | 25 | 30 |
| Swing Check Valve | 50.5 | 33.3 | 41.8 | 49.7 | 54.7 | 62.5 | 70.3 | 78.4 | 94.3 |
| Angle Valve | 75.8 | 99.8 | 125 | 149 | 164 | 188 | 210 | 235 | 283 |
| Globe Valve | 172 | 226 | 284 | 338 | 372 | 425 | 478 | 533 | 641 |
| Gate Valve | 4 | 5.3 | 6.7 | 8 | 8.8 | 10 | 16.9 | 12.5 | 15.1 |