Flashcards in 6. Hose nozzles and flow rates Deck (10)
The __ __ and size of the discharge or if this determines the flow and reach of a solid stream.
Solid stream maximum
nozzles on headlines:
Master stream appliances:
29.7 x d^2 x NP squared
However some operate at 50 or 75 psi
These nozzles are best suited for wildland fires and are not recommended for structural firefighting due to the low flow of only 8 to 15 gpm
High-pressure fog nozzle
Generally, __ gpm is the maximum flow for a headline
Master stream smoothbore nozzles generally operate it at __ psi , while fog appliances are generally operate it at __ psi.
In most cases, solid stream nozzles for handline use operate at __ PSI nozzle pressure. Portable master stream devices should be operated at pressures not to exceed the manufacturers recommendation. Generally for fix master stream appliances a nozzle pressure of __ psi is required.
Nozzle reaction for solid stream nozzles
1.56 x d^2 x NP