FORMULAS                                                                                                                           COEFFICIENTS

FL= C (Q²/100) (L/100)                                                                                                         1”-------------- 500

GPM TIP= (29.7)(D²)√op. press.                                                                                        1.5”------------  22

GPM (HYDRANT)=  (29.7)(D²)√op. press.(.9)                                                                 1.75”----------   11

GPM (SPRINKLER)=  .5P+15                                                                                            2.5”------------  1.5

GPM (FOG)= ( .1) (√ op. press.) (rated gpm)                                                                   3”--------------    .7

HEIGHT OF LIFT= (1.13)(inches Hg)                                                                                4”--------------  .15

% DROP IN PRESSURE=            (s-r)(100÷static)                                                          5”--------------  .06

NOZZLE REACTION (FOG)= (.05 gpm)(√noz.press)

NOZZLE REACTION (TIP)= .15D² (noz. Press.)

AVAILABLE FLOW @ 20PSI= (√s-20÷s-r)(observed flow)(.9)

CYLINDER CAPACITY= D²(6L)

RECTANGULAR CAPACITY=L W H (7.5)(gal / ft³)

STANDARD PRESSURES                                              

150   PSI   RELAY (INITIAL)                                 

150   PSI   SPRINKLER SYSTEM                       

150   PSI   TANKING WATER                             

NOZZLE PRESSURES                                                      SQUARES

100 PSI = FOG NOZZLE                                                        3/4   (.75) =        .56

 50  PSI = HANDLINE STRAIGHT TIP                                7/8 (.875)=         .76

 75  PSI = FOG NOZZLE (RATED GPM – 15%)            1- 1/8 (1.125) =    1.27

 80  PSI = MASTER STREAM TIP (MONITOR)             1- 1/4 (1.25) =      1.56

 50  PSI = BRESNAN DISTRIBUTOR @ 450 GPM      1-1/2 (1.5) =         2.25

                                                                                                1-3/4 (1.75)=        3.06

                                                                                                2-1/2 (2.5)=          6.25

ADDITIONAL LIKE LINES AVAILABLE

PRESSURE DROP < 10% =  3

PRESSURE DROP < 15% =  2

PRESSURE DROP < 25% =  1

PRESSURE DROP > 25% =  0

HELITACK                                                                            APPLIANCE FRICTION LOSS

  10    PSI   FL PER 100 FT.   3” HOSE                           WYE/ SIAMESE                    10 PSI

  15    PSI @ KAMLOCK                                                     MASTER STREAM              10 PSI

340 GPM @ KAMLOCK                                                     STANDPIPE                          25 PSI

                                                                                                LADDER PIPE                      25 PSI

SPRINKLER CODES AND TEMPS

TEMP RANGE                      CLASS                                 COLOR

135° TO 170°                        ORDINARY                           UNCOLORED

175° TO 225°                       INTERMEDIATE                   WHITE                      

250° TO 300°                       HIGH                                       BLUE

325° TO 375°                        EXTRA HIGH                       RED

400° TO 475°                        VERY EXTRA HIGH           GREEN

500° TO 575°                        ULTRA HIGH                       ORANGE

DOT PLACARDING

COLORS:   EXPLOSIVES ORANGE     OXIDIZERS YELLOW    POISON  WHITE

                     FLAMABLE LIQUID RED    FLAMABLE SOLID  RED, WHITE STRIPES

                    CORROSIVE BLACK,WHITE

UN CLASS:              1  EXPLOSIVES                  EXPLOSIVE ATMOSPHERES

                                    2  GASSES

                                    3  FLAMABLE LIQUIDS                 CLASS I    GASSES

                                    4  FLAMMABLE SOLIDS               CLASS II   DUSTS

                                    5  OXIDIZERS                                  CLASS III  FIBERS

                                    6  POISONS                                                  DIV. 1  NORMALLY PRESENT

                                    7  RADIOACTIVE                                        DIV. 2  SOMETIMES PRESENT

                                    8  CORROSIVES

                                    9  MISC.