Two fully embedded, electronic around-the-pump foam proportioning
systems allowing for a foam compound rate of 450 or 600 ltr per minute
respectively are available to match the high flow rate of the N100
pump.
The FOAMATIC E around-the-pump foam proportioning system is based on electronic
flow measurement of water and foam compound in two different measurement
ranges:
FOAMATIC E / PW
500 Ltr/min to 10,000 Ltr/min
FOAMATIC E / MID
200 Ltr/min to 10,000 Ltr/min
On the basis of the measured water and foam compound
flow rates, two solenoid valves open or close to
meter the amount of foam compound corresponding
to the set proportioning rate.
The actual foam compound flow rate is constantly monitored and
the solenoid valves are accordingly actuated – this
is referred to as a control system. |