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S & K Properties Drawing Date: 8/ 2/11 21:20 <br /> Page 3 <br /> -------------------------------------------------------- <br /> FITTING NAME TABLE <br /> ABBREV. NAME <br /> --------------- <br /> C Coupling <br /> E 90' Standard Elbow <br /> F 45 ' Elbow <br /> S Straight Flow Thru Tee <br /> T 90 � Flow Thru Tee <br /> `7 Valve <br /> LEGEND <br /> HYD REF Hydraulic reference. Refer to accompanying flow diagram. <br /> K FACTOR Flow factor for open head or path where Flow (gpm) - K x -\/P <br /> 4a Flow added or subtracted <br /> Qt Total flow <br /> DIA Actual internal diameter of pipe <br /> � Hazen Williams pipe roughness factor <br /> Pf/ft Friction loss per foot of pipe <br /> PIPE Length of pipe <br /> FTNG'S Number of fittings. See table above. <br /> TOTAL Total length (PIPE + FTNG'S) <br /> Pt Total pressure (psi) at fitting <br /> Pe Pressure due to change in elevation <br /> where Pe = 0.433 x change in elevation <br /> Pf Friction loss (psi) to fitting <br /> where Pf = 1 x 4.52 x (Q/C) �1.85 / ID"4. 87 <br /> Pv Velocity pressure (psi) <br /> where Pv = 0. 001123 x Q�2/ID�4 <br /> Pn Normal pressure (psi) , where Pn - Pt - Pv <br /> NOTES: <br /> - Pressures are balanced to 0.01 psi. Pressures are listed to <br /> 0. 1 psi. Addition may vary by 0.1 psi due to accumulation of <br /> round off. <br /> - Calculations conform to NFPA 13 . <br /> - Velocity Pressures are not considered in these Calculations <br />