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S & K Properties Drawing Date: 8/ 2/11 21:20 <br /> " HYDRAULIC CALCULATION DETAILS <br /> HYDRAULIC FLOW LOSS <br /> QTY DESCRIPTION LENGTH C ID gpm psi TOTALS <br /> Hydr Ref W Required at Hyd Area 2 33 30.9 psi <br /> 1 1-1/4�� Thrd 90 E11 CI 3 ' 120 1.380 33 0.4 <br /> 1 Pipe 1-1/2'� 40x21 CSC 10' 120 1.610 33 0.4 <br /> Hydr Ref TOR Required at Node TOR 33 31.7 psi <br /> 1 Pipe 2-1/2" 1Ox21 CSC 10� 120 2.635 33 0.0 <br /> 1 2-1/2�� Fingd Back Flow Valve Ames CHART LOSS 33 6 .1 <br /> Elevation Change 21'0" 9. 1 <br /> Hydr Ref BOR Required at Base of Riser 33 46.9 psi <br /> 1 Pipe 4�� DIx18 Class 350 10� 140 4.300 33 0.0 <br /> 1 Pipe 4" PVx20 DR 14 25 ' 150 4 .457 33 0. 0 <br /> 2 4" MJ 90 Ell 12 ' 120 4.026 33 0. 0 <br /> 1 4" Fingd Gate Valve CSC '�722U" 2 � 120 4.026 33 0.0 <br /> Fixed Flow Outside Hose Allow. 100 gpm <br /> Hydr Ref SRC Required at Source 133 <br /> Water Source 62.0 psi static, 10. 0 psi residual @ 1800 gpm 133 gpm 61.6 psi <br /> SAFETY PRESSURE 14 7 psl <br /> Available Pressure of 61.6 psi Exceeds Required Pressure of 46. 9 psi <br /> This is a safety margin of 14 .7 psi or 24 % of Supply <br /> Maximum Water Velocity is 12.3 fps <br />