FIXED SPEED
The sizing is determined based on the pump flow rate,
the start and stop pressures and the number of starts
allowed per hour.
V= Volume of the tank (litres)
Q= Flow rate (m3/h)
S= Start pressure (bar)
D= Differential pressure, between stop and start (bar)
M= Maximum starts allowed per hour
V = Q x 1000 x S / (4 x M x (D + 0,2)
VARIABLE SPEED
The volume of the tank (litres) should be about 10% of
the required flow rate considered in litres/minute.
E.g. if the maximum flow rate required is 100 litres/min,
an 8-litre tank is sufficient.