• Italiano
  • English
  • Deutsch
  • Français
  • Español
Choice and sizing

In order to calculate the capacity of a pressure tank with membrane, it is necessary to know the plant specifications. For example, water consumption required.

The sizing of the tank can be calculated using the following formula:

Taking into account:

K
Working coefficient of the pump (see table)
Amax
Average flow (liters per minute)
Pmax
Maximum working pressure of the pump(bar)
Pmin
Minimum working pressure of the pump(bar)
Pprec
Pre-charge pressure of the tank(bar)

Warning!Always set the pre-charge of the tank 0,2 bar less than the pump power pressure

Example

System data:

  • Pump power4 HP
  • K= 0,375
  • Amax= 120liters per minute
  • Pmax= 7 bar
  • Pmin= 2,2 bar
  • Pprec= 2 bar

Pump power
(HP)
Coefficient
(K)
1–20,25
2,5–40,375
5–80,625
9–120,875

In any case we will adopt the closest measure to the calculated value

All rights reserved - Tutti i diritti riservati - Credits B.LAB + WebCloud