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Firemiks AB
Instruction manual version: SPFA FM
P.O. Box 8155, 104 20 STOCKHOLM, Sweden
phone +46-8-551 196 10 - [email protected] - www.firemiks.com
3 General description
3.1 FIREMIKS® is designed with two displacement units direct coupled to
each other. FIREMIKS dosing system is driven solely by the existing
extinguishing water flow - no additional energy source is required.
The water flow from a main water pump goes through the FIREMIKS
water motor. The power of the water flow generates a circular rotor
motion, which is transferred to the concentrate pump. The concentrate
pump pumps concentrate into the water motor outlet creating the
water/concentrate mixture.
Since the water motor and the concentrate pump are directly connected
with the drive coupling, the system is by that flow-proportional. Dosing is
automatically adjusted from the amount of water that goes through the
FIREMIKS.
3.2 FIREMIKS is a dosing system which uses an atmospheric concentrate
tank and which requires positive pressure
1
of the concentrate liquid at
the pump inlet. Equipped as standard with a Manual air relief valve.
Flushing of the concentrate pump is done automatically when the
concentrate inlet is closed with 3-way ball valve.
The FIREMIKS is installed on the piping between the main
extinguishing water outlet and the discharge devices. Most often
the placement of the concentrate tank is decisive and the
FIREMIKS is installed in close vicinity of the tank.
Illustration of functioning principle
1
Positive pressure is reached when gravity feed overcomes the friction losses in the
piping between the tank and the Firemiks pump inlet at all operating conditions.
