Liting from Open Water and LPP

Question 1

What is max theoretical lift under 1 bar of atmospheric pressure?

Answer 1

10m

Question 2

What is max practical lift?
Why?

Answer 2

8m
overcoming inertia
frictional loss
pump entry loss
imperfect vacuum
temperature of water
atmospheric pressure

Question 3

What is minimum height to submerge strainer to avoid a vortex?

Answer 3

300mm
(3x diameter of suction hose)

Question 4

What is the measure of -0.1 on the compound guage on the vacuum side

Answer 4

-0.1 = 1m lift

Question 5

Rosenbauer LPP
Weight
Engine
Fuel
Output
Max Output
Max Duration
Max Pressure
Battery

Answer 5

84kg
4 stroke 18hp
Unleaded
800lpm at 5bar
1000lpm at 4bar
1.5 hours at 5bar
8bar
12v sealed for life