SPRAYERS - Tecnoma

Choosing a
PRESSURE PUMP
Calculating the flow rate and pressure required
As soon as the flow rate and pressure have been established, check the curve for each
TECNOMA pump to determine the point of intersection given by these two values:
60
50
45 m
40
3
4
30
Hm
20
1
2
10
0
0 0,5 1 1,5 2 2,5 3 3,5 3,6 4 4,5 5 5,5 6
2 m³/h
m³/h
Multipulsar 1100 Hydrostop
Multipulsar 1100 Automatic
T 800 K7
T 800 K7 Automatic
1. What is the depth of suction? [for example 6 meters] 6
2. What is the length of the hosepipe?
[for example 90 meters or 90 x 10%*] 9
3. What is the difference in height between the pump
10
and the water supply point? [For example 10 meters]
[Pressure 2 bar or 20 meters**]
20
___________________
YOU NEED A HEAD OF
45 m (or 4.5 bar)
4. How many water outlets are used ?
2
[if you use two water outlets]
THE FLOW RATE REQUIRED IS
(2 x 1m3/h)
*The water flow through a pipe causes a pressure drop which is estimated at
10% for 19mm (3/4’’) hose
** A water outlet requires an operating pressure of 2 bar (20m). This is the
pressure required, regardless of the number of water outlets, as the pressure is
not cumulative.
6