Equivalent Length Copper Pipe Fittings

Equivalent length in feet of straight pipe for copper pipe fittings

The equivalent length in feet for the fittings used is to be added to the actual length of the piping run to get the total length. 

Size (in) Equivalent Length (feet)
90o Elbow 45o Elbow  Line Tee Branch Tee
1/2 0.9 0.4 0.6 2.0
5/8 1.0 0.5 0.8 2.5
7/8 1.5 0.7 1.0 3.5
1 1/8 1.8 0.9 1.5 4.5
1 3/8 2.4 1.2 1.8 6.0
1 5/8 2.8 1.4 2.0 7.0
2 1/8 3.9 1.8 3.0 10.0
2 5/8 4.6 2.2 3.5 12.0

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