How many gpm does a fog nozzle flow?
We referenced NFPA 1410, Standard on Training for Initial Fire Attack, which recommends flowing a total of 300 gpm from the first two lines. With the new nozzles, the fog tip flows 150 gpm at 50-psi nozzle pressure. The smooth bore nozzle is 7/8 inch, which flows 160 gpm at 50 psi.
What pressure do you pump a fog nozzle?
100 psi
Conventional fog nozzles have a fixed or selectable gpm setting. These settings correspond to a particular discharge orifice, or tip size. In order for a conventional nozzle with a fixed opening to operate at the correct nozzle pressure of 100 psi, the proper gpm flow must be supplied.
How do you calculate nozzle reaction?
The nozzle reaction is found to be: R = ρ Q 2 / A2 , where A2 is the discharge diameter, Q is the volumetric flow rate, R is the magnitude of the nozzle reaction, and r is the water density. This equation shows that the reaction is proportional to the flow rate squared, divided by the nozzle diameter.
What is the nozzle pressure for a master stream with a fog nozzle?
Master Stream Devices: Nozzle Pressure + 10 PSI for the device.
What PSI Do you flow a deck gun?
80 psi
In the case of master stream nozzles, the standard pressure is 80 psi. Unfortunately, the deck gun discharge gauges on fire apparatus do not take their pressure readings at the tip or even at the base of the master stream nozzle.
How do you read a nozzle chart?
On a standard nozzle chart, the top column that runs left to right is the pressure that you want to obtain. The left column top to bottom is the nozzle orifice size designation. The top to bottom column next to the orifice size column indicates the actual orifice measurement.
What is the standard nozzle pressure to a master stream fog nozzle?
Fixed-gallonage fog nozzles and smooth bore tips are designed to produce a given volume of water at a specified pressure. In the case of master stream nozzles, the standard pressure is 80 psi.
How many GPM is a 5 32 nozzle?
Typical sprinkler flow rates may vary from 4 gallons per minute (gpm) from a 5/32-inch nozzle at 30 pounds pressure to over 11 gpm from a 7/32-inch nozzle at 70 pounds pressure. The nozzle size is usually stamped on the side of the nozzle.
What PSI Do you flow a master stream at?
Note that the standard rule is to use a pressure of 80 psi for a smooth bore tip nozzle in master stream operations. Higher pressures will create a broken and insufficient stream and an unstable operation in the elevated and portable modes, according to most fire stream books.
What is the normal flow rate of a nozzles?
NOZZLE FLOW RATE AND REACTION FORCE COMPARISON CHART STANDARD AND LOW PRESSURE ATTACK NOZZLE STEM CHART FLOW RATE (REACTION FORCE) NOZZLE 125 GPM 150 GPM 150 GPM 150 GPM 175 GPM 175 GPM 185 GPM 200 GPM 200 GPM 250 GPM 250 GPM 325 GPM PRESS.
What is a Select-O-flow nozzle?
Select-O-Flow® Select-O-Flow®, the original selectable gallonage nozzle, is similar in function to the Phantom®— allowing the firefighter to select the appropriate flow. The Select-O-Flow®range goes as high as 250 gpm.
Can a foam aeration tube be attached to a fog nozzle?
When greater expansion rates of foam solution are needed, a foam aeration tube can be quickly attached to many of Elkhart Brass combination fog nozzles. All tubes are Elk-O- Lite®cast finish with a nylon cord wrap. Compatible Nozzle Model 246-S 247-S 244 246 247
What colors do the nozzles come in?
All nozzles are NHT unless otherwise specified. See index T-13 for optional base threads, including British instantaneous.red orange yellow Glow green blue COLORS Color options available for pistol grip, bumper, and handle. Glow available for bumper only.