What do you pump a smooth bore nozzle at?

Asked by: Martha Johnson

The operating pressure of the smooth bore is a range from 40 to 60 pounds per square inch (psi), with 50 psi as optimal.

How much psi do I need for a smooth bore nozzle?

Smooth bore nozzles generate effective streams at nozzle pressures as low 30 PSI, but the stream will degrade at pressures over 60 PSI.

What do you pump a fog nozzle at?

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 the nozzle reaction for a smooth bore?

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 psi Do you flow a deck gun at?

By having flow control at the deck gun and knowing the static pressure the pump operator can quickly engage the pump upon arrival, pull the tank to pump valve, open the master stream valve and throttle up to that 140 PSI static pressure.

What pressure do you pump a booster line at?

Attack Hose-1” Booster Line



Requires High Pressure (approx. 200 psi)

How do you calculate nozzle pressure?

So it's going to operate at 50 psi a nozzle pressure. So the formula is GPM equals 29.7 times diameter squared. Times the square root of nozzle.

How many GPM is a master stream?

About the MASTER STREAM Series



150-1000 gpm, 300 – 1250 gpm, 300-2000 gpm, and 600 – 4000 gpm ranges are readily available based upon firefighting needs. Manual and electronic remote nozzles are available. Adjustable from straight stream to a dense fog pattern with a flow range of 150 gpm – 1000 gpm.

What is nozzle operating pressure?

Nozzle pressures for automatic nozzles vary from 75 psi to 100 psi. Another important aspect of understanding nozzles is the difference between the streams produced by different nozzles.

How do you calculate fog nozzle GPM?

GPM=29.7 x diameter squared x square root of the nozzle pressure.

What is the pressure at the tip of a combination nozzle?

Automatic combination nozzle 100 psi NP, 120 gpm.

What is a deck gun in firefighting?

A deluge gun, fire monitor, master stream or deck gun is an aimable controllable high-capacity water jet used for manual firefighting or automatic fire protection systems. Deluge guns are often designed to accommodate foam which has been injected in the upstream piping.

What are the two methods for figuring friction loss described in this module?

There are two ways to calculate friction loss: the theoretical method or the fireground method.

How do you calculate pump discharge pressure?

Enter the friction loss calculation to the right each hose’s GPM . Find the path from the fire engine to the nozzle with the highest friction loss. Circle each of the PSI friction loss values for every hose in that path . Add up those values (19.4 psi) and enter the sum as A in the Pump Discharge Pressure formula .

How do I calculate GPM?

Convert the volume of water (bucket’s capacity) to gallons. Divide the volume by the time expressed in seconds to get gallons per second. Multiply by 60 to get gallons per minute.

How do you calculate the GPM of a fire pump?

For example, if you have a 40,000-square-foot building that is all ordinary group 1, the calculation would be 1,500 x 0.15 (density) = 225 + 250 (hose demand) = 475 gpm total for the fire pump. If the structure has multiple hazards, the hazard with the highest gpm calculation dictates the pump size.

Is 20 gallons per minute a good well?

You could have a great well water flow rate – say 20 gallons per minute – but if it the water will only run at that rate for five minutes before you run out, the well has a very poor water quantity (5 minutes x 20 gpm = 100 gallons of water) and it’s not a satisfactory well.

How many gallons per minute does a 10 hp pump?

Example – Horsepower Required to Pump Water

How do you calculate pump head flow rate?

So for this one the new flow rate would be equal to the new diameter of the impeller multiplied. By the old flow rate divided by the diameter of the old impeller.

How do you calculate pump output?

Pump Output Calculation for Duplex Pump and Triplex Pump

1. Triplex Pump Output = 0.000243 × (Liner Diameter ) ² × (Stroke Length) Where, …
2. Triplex Pump Output = 2.3576 × 10^–9× (Liner Diameter ) ² × (Stroke Length) Where, …
3. Duplex Pump Output = 0.000162 × S × [2(D)² – d²] …
4. Duplex Pump Output =1.57172 × 10^–9 × S × [2(D)² – d²]

How do I calculate pump needs?

Quick Formula

1. Water horsepower = minimum power required to run water pump.
2. TDH = Total Dynamic Head = Vertical distance liquid travels (in feet) + friction loss from pipe.
3. Q = flow rate of liquid in gallons per minute.
4. SG = specific gravity of liquid (this equals 1 if you are pumping water)
5. Water horsepower =

How many liters per minute does a 1 hp pump pumps?

1 HP Single Phase Submersible Pump, Maximum Discharge Flow (LPM): 100 – 500 LPM.

How many liters per minute does a 0.5 HP pump pumps?

30 Litres/minute – 0.5 hp.

How high can a 1/2 HP pump push water?

You can expect a 1/2 HP submersible pump to raise your water up to 10 feet out of the ground. This lift rate makes the 1/2 HP pump ideal for homes closer to sea level. 1/2 HP pumps tend to have shorter pipe lengths than their competitors, as well.

How many liters per minute does a 0.75 HP pump pumps?

30 Litres/minute – 0.75 hp.

How many liters per minute does a 1.5 HP pump pumps?

1.5 hp Single Phase V4 Submersible Pump, Maximum Discharge Flow: 100-500 LPM.

How many gpm does a 1.5 HP pump?

Pool Pump Operating Costs