Water Booster Project Rpt 031308 3 of 3appendix F
system Finings Lisp and Associated i[ values
Fitting Count and K values for Hazen-Wihiams fitting loss equation:
Forrester Heights Boaster Pump Station
4-inch Fittings associated w! Boasterpaq:_
{fitting count conservatively assumes Fire Flow, 2 pumps running}
^escri tion k value # of fittin s k Notes
isolation valve 0.35 4 1.40 Butterfl valve 150-Ib class
Check Valve 2.50 2 5.20 4"Silent Wafer S le. flomatic model 888
Sudden Reducer 0.38 2 0.75 8" x 4" at Manifold
Sudden lncreaser 1.20 2 2.40 4" x 8" at Manifold
~kt4") = 9.76
8-inch Pipe. Fittin s:
Descri tion k value # of fittin s k Notes
Gate Valve 0.36 2 0.72 Resilient Seat
90° Bend 0.30 6 1.80 Cast Fittin s
10" x $" reducer 0.03 1 0.03 conical
10" x 8" increaser 0.50 1 0.50 conical
Tee- Branch Flow 1.05 4 4.20 Flow in Manifold
Tee -Line Flaw 0.36 6 2.16 Flow in Manifold
~k[$"y = 9.41
10-inch Pipe Fittinas:
Descri tion k value # of fittin s k Notes
Gate Valve 0.33 4 1.32 Resilient Seat
22.5° Bend 0.20 10 2.00 Conservative) mode4ed as A5° bends
Tee 0.33 fi 1.98 FH's Line flaw
90° Bend 0.28 1 0.28 cast
Tee 0.33 70 23.10 service connections conservative
Tee 0.83 1 0.83 Main line Branch flow
~k~10"] = 29.51
k values from Appendix B of "Pumping Station Design, Second Edition." '1998. Robert L. Sanks
Fitting taunt accounts far all fittings associated with full build-out of system.