# Nozzle Reaction Force Calculator, Formula, Nozzle Reaction Force Calculation

## Nozzle Reaction Force Calculator:>

Enter the values of the pressure, P(Pa) and nozzle area, NA(m2) to determine the value of Nozzle Reaction Force, NR(N).

 Enter Pressure: Pa Enter Nozzle Area: m2 Result – Nozzle Reaction Force: N

## Nozzle Reaction Force Formula:

The nozzle reaction force is a measure of the backward force exerted by a nozzle when a fluid (usually water) is discharged at a high velocity. This principle is commonly applied in fire fighting to understand the forces on the hose and nozzle.

Nozzle Reaction Force, NR(N) in Newtons is calculated by multiplying the pressure, P(Pa) in pascals by the nozzle area, NA(m2) in square metres.

Nozzle Reaction Force, NR(N) = P(Pa)  * NA(m2)

NR(N) = nozzle reaction force in Newtons, N.

P(Pa) = pressure in pascals, Pa.

NA(m2) = nozzle area in square meters, m2.

### Nozzle Reaction Force Calculation:

1. Calculate the nozzle reaction force if the pressure at the nozzle is 700,000 Pa and the nozzle area is 0.005 m².

Given: P(Pa) = 700,000Pa, NA(m2) = 0.005m2.

Nozzle Reaction Force, NR(N) = P(Pa)  * NA(m2)

NR(N) = 700,000 * 0.005

NR(N) = 3500N.

1. To find the nozzle area, given the nozzle reaction force is 2000N and the pressure is 400,000Pa.

Given: P(Pa) = 400,000Pa, NR(N) = 2000N.

Nozzle Reaction Force, NR(N) = P(Pa)  * NA(m2)

NA(m2) = NR(N) / P(Pa)

NA(m2) = 2000 / 400,000

NA(m2) = 0.005m2.