LIM-030 - Task Force Tips

Step 3: Calculate flow with automatic nozzle.Using the pressure loss constant from step 2 and the following equation, the flow with an automatic nozzle can becalculated for your particular installation.Where:QPautoautoQ = (P - P )Cauto in-line autoautomatic nozzle flow in GPM (or LPM)nominal nozzle operating pressure in PSI (or BAR)Mount a graph or table of the results adjacent to the in-line pressure gauge. Deliver any desired flow by adjustment ofpump pressure.3.4 STREAM TRAJECTORY DATAFigures 4A and 4B give the stream trajectory for the Master, Monsoon and Typhoon nozzles at various flows.Notes on trajectory graphs:• Graphs show approximate effective stream trajectory at 30 degrees elevation in no windconditions. Distance to last water drops approximately 10% farther.• Trajectories shown are for water. The addition of foam is expected to decrease the reach by 10%.• Tail or head winds of 20 MPH (30 KPH) may increase or decrease the range approximately 30%.• Stream trajectory of Typhoon based on "The Trajectories of Large Fire Fighting Jets" by A.P. Hattonand M.J. Osborne, Reference: "The International Journal of Heat and Fluid Flow", Vol 1 No 1.VERTICAL DISTANCE (FEET)0102030METERS40 5080702060 MASTER, 100 PSI (7 BAR, 700 KPA )50D40103020AEB10C0 00 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300HORIZONTAL DISTANCE (FEET)607080 90METERSCURVEABCDECURVEABCDEGPMFLOW3004005008001000LPMFLOW11001500190030003800LBSREACTION150200260400510KGFREACTION7090120180230EXCEL\MISC\RANMASTVERTICAL DISTANCE (FEET)8070605040302010METERS0 10 20 30 40 50 60 70 80 90MONSOON, 100 PSI (7 BAR, 700 KPA)A000 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300HORIZONTAL DISTANCE (FEET)EXCEL\MISC\RAN_MONBCDE2010METERSCURVEABCDECURVEABCDEGPMFLOW300600100015002000LPMFLOW11002300380057007500LBSREACTION1603005107601000KGFREACTION701402303404508©Copyright Task Force Tips, Inc. 1999FIG 4A - Master and Monsoon Stream TrajectoryLIM-030 November 22, 1999 Rev 1