Maximum flow Q
max
A) The following values only apply to Q
when operating metering pumps with properly
sized pulsation dampers or with constant flow
velocity:
Valve type DHV-U
DN 10
DN 15
DN 20
DN 25
DN32
DN40
B) The following applies to Q
metering pumps without pulsation damper:
For solenoid metering pump: Q
For motor-driven metering pumps: Q
max
Q
for H
O at 20 °C
max
2
l/h
500
890
1000
1300
2100
3800
when operating
u
= Q
/20
u
max
= Q
/3
u
max
Technical data
59