What pressure should a fire pump have to deliver water to a height of 80m?

Initial data: h (height to which the pump should supply water) = 80 m.

Reference values: g (acceleration due to gravity) = 9.81 m / s2 ≈ 10 m / s2; ρ (density of the water supplied by the pump) = 1000 kg / m3.

The minimum pressure that a fire pump must have can be calculated using the formula: P = ρ * g * h.

Let’s calculate: P = 1000 * 10 * 80 = 800 000 Pa or 800 kPa.

Answer: The fire pump must have a pressure of 800 kPa.