Calculation CoversheetHYDRAULIC CALCULATIONSFORProject:CONTRACT No.:DATE:3/20/08DESIGN DATA:Occupancy classification:Density:l/s / m2Area of application:m2Coverage per sprinkler:m2Number of Sprinkler Calculated:nos.Total water required:(Including Hose Streams)l/sNAME of CONTRACTOR:NAME of DESIGNER:

Hydraulic CalculationsNotes:HYDRAULIC CALCULATIONS- Light hazard Occupancy : The protection area per sprinkler : 18.6m2- Ordinary hazard Occupancy : The protection area per sprinkler : 12.1m2Name:Dead End System without Velocity PressureSheetof- Extra hazard Occupancy : The protection area per sprinkler : 9.3m2Address:C =120Prepared by:Area:K =79.1Date:STEP No.NOZZLE IDENT. & LOCATIONFLOW IN (l/min)PIPE SIZE (mm)PIPE FITTINGS & DEVICESEQUIV. PIPE LENGTH(m)FRICTION LOSS(bar/m)PRESSURE SUMARRY(bar/m)NORMALPRESSURE(bar/m)NOTESREF. STEPDensitySelection(l/min)/m2CalculatedArea(m2)CoverageperSprinkler(m2)Number of Sprinkler to be CalculateNumber of Sprinkler on Branch Line= (1.2A)/distanceFlow inFirst Sprinkler(Q=l/min)q =L =4Pt =0.9134622915Pt =6.313912412475.61Q =75.6025F =Pe =Pv =13T =40.040Pf =0.160Pn =q =81.961L =4Pt =1.0736493919Pt =2Q =157.5632F =Pe =Pv =2The total pressure (Pt) is determined by:T =40.047Pf =0.1872967633Pn =Pt =[Q/K]2 =0.913bar/mq =88.823L =4Pt =1.2609461552Pt =3Q =246.3840F =Pe =Pv =3Where:Q = l/minKT =40.036Pf =0.1444710631Pn =75.679.1q =93.773L =Pt =1.4054172183Pt =4Q =340.1640F =Pe =Pv =4Friction Loss Formula:Pf =L x 6.05 xQ1.85x 105=3.273bar/mT =00.066Pf =Pn =C1.85 x d4.87q =L =Pt =1.4054172183Pt =5Q =F =Pe =Pv =5Where:Q = l/minCd (dia. mm)length (m)T =0Pf =Pn =1200120100420q =L =Pt =1.4054172183Pt =6Q =F =Pe =Pv =6The flow increment in l/min to be added at a specific location:T =0Pf =Pn =q = Kp=81.961l/minq =L =Pt =1.4054172183Pt =7Q =F =Pe =Pv =7Where:Kp (bar/m)T =0Pf =Pn =79.11.0736493919q =L =Pt =1.4054172183Pt =8Q =F =Pe =Pv =8The K factor is determined by:T =0Pf =Pn =K =Q/p =0.0000000000q =L =Pt =1.4054172183Pt =9Q =F =Pe =Pv =9Where:Q = l/minp (bar/m)T =0Pf =Pn =q =L =Pt =1.4054172183Pt =10Q =F =Pe =Pv =10T =0Pf =Pn =q =L =Pt =1.4054172183Pt =11Q =F =Pe =Pv =11T =0Pf =Pn =q =L =Pt =1.4054172183Pt =12Q =F =Pe =Pv =12T =0Pf =Pn =q =L =Pt =1.4054172183Pt =13Q =F =Pe =Pv =13T =0Pf =Pn =q =L =Pt =1.4054172183Pt =14Q =F =Pe =Pv =14T =0Pf =Pn =q =L =Pt =1.4054172183Pt =15Q =F =Pe =Pv =15T =0Pf =Pn =Pt =1.4054172183

REFER TO DENSITY TABLEREFER TO DENSITY TABLE

Hydraulic Graph

Density Table

K FactorSprinkler Discharge Characteristics IdentificationNominalOrificeSize(mm)OrificeTypeKFactorPercent ofNominal1/2 in.Discharge12.7Standard5.3-5.810013.5Large7.4-8.214015.8Extra Large11.0-11.5200K factor is the constant in the formula :Q =KPWhere:Q = Flow in gpmP = Pressure in PSIFor SI unit:Qm = KmPmWhere:Q = Flow in l/minP = Pressure in barsKm = 14K

Equivalent Pipe Length ChartFittings & ValvesFittings and Valves Expressed in Equivalent Meter of Pipe2025324050658090100125150200250300450 Elbow0.30480.30480.30480.60960.60960.91440.91440.91441.21921.5242.13362.74323.35283.9624900 Elbow0.60960.60960.91441.21921.5241.82882.13362.43843.0483.65764.26725.48646.70568.2296Tee / Cross0.91441.5241.82882.43843.0483.65764.5725.18166.0967.629.14410.66815.2418.288Butterfly Valve1.82882.13363.0483.65762.74323.0483.65765.79126.4008Gate Valve0.30480.30480.30480.30480.60960.60960.91441.21921.5241.8288Swing Check Valve1.5242.13362.74323.35284.26724.87685.79126.70568.22969.753613.71616.76419.812