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FLF 15000/1800/500
Panther 8x8 CA-7
© 2014
Technical Description
Electronic controlled foam-proportioning system RVME 600
The RVME 600 is mainly composed of a foam induction pipe with
injector, foam proportioning system and control.
The control consists of the water and foam flow meters, governor
and two servo-motors.
Advantages:
Because the foam compound is added automatically in correct
proportion to water discharge, there is no manual adjustment
necessary. This simplifies operation and the system is therefore
very precise.
Working principle:
Water discharged by the water pump is measured by the water flow
meter; this value is transmitted to the governor. The servo-motors
are adjusted by the governor according to the required foam
proportioning rate and are permanently matched to the dis-
charged water rate. As soon as the foam induction valve is opened,
the pressure travels from the centrifugal pump, through the injec-
tor, and returns to the suction side of the pump.
The foam compound flows from the foam tank to the foam dosing
valves and finally to the injector. In the injector, water and foam
are mixed by means of the injector principle (venturi). This mixture
is then carried to the suction side of the centrifugal pump.
The induction water as well as the foam proportioner can be
switched off by closing the foam induction valve.
As an option the system is equipped with a foam flow meter for
measuring the actual foam quantity. Daviations (caused by differ-
ent viscosity) will be recognized and the governor adjusts the
servo-motors on the foam dosing valves, so that the preselected
foam proportioning rate is achieved.
Range of use:
The electronic controlled foam-proportioning system RVME 600
is designed for proportioning all foam compound types available.
An accurate proportioning rate is guaranteed over a range of 200
- 10000 l/min water output.
Proportioning rates:
The proportioning rate can be adjusted to three different possibili-
ties (e.g. 3%, 6%, or 8%).
As an option the proportioning rate can be infinitely adjusted.
RVME 600
in
er
MID
W
MID
SM
pressure outlets
injector
foam induc-
tion valve
foam com-
pound tank
water tank
pump
foam dosing
valve
pressure outlets
water flow-
meter
foam flow-
meter
Schedule with magnetic inductive flow meter in the water
and foam compound pipe - optional equipment
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