Operating Principle and Installation Guidelines


The water flow goes through the FIREMIKS water motor generating a circular rotor motion that is transferred to the dosing pump over the direct drive coupling. The concentrate is pumped into the water motor outlet, where dosing occurs.

Since the water motor functions both as a power source to the dosing pump and as a flow meter system, the system becomes flow proportional: dosing automatically follows all the variations in the water flow.

The water motor rotor has 8 or 10 working wings, which gives an early and stable volumetric function of the water motor within a flow range up to 1:10 (for example 240-2.400 lpm). The narrow interior design along with the low friction of the vanes, reduces the noise level of the unit and creates a long and lasting durability.


installation guidelines

When installing FIREMIKS we strongly recommend that the extinguishing media tanks minimum level is placed above the inlet of the dosing pump so that the concentrate has a free flow from the tank down to the dosing pump, this makes the suction efficient and immediate from the start. In installations with our piston pump type – PP, is this a requirement.

The internal diameter on the suction system must have an equal diameter, or one step larger, as the inlet of the three-way valve on the dosing pump.

FIREMIKS is designed to operate with clean water. No abrasive particles should be present in the water flow. Attention! Rinse the piping thoroughlybefore installing FIREMIKS to ensure that the extinguishing water is completely clean of waste products after welding, etc.

If the installation is to operate for an extended period of time with extinguishing water only, a by-pass with suitable valves should be installed around the FIREMIKS system to avoid unnecessary wear.

Dry running of the FIREMIKS dosing pump is not allowed, always use the internal flushing if suction of concentrate does not occur.

For fixed installations we recommend that FIRMIKS is delivered with a return valve that makes it possible to return extinguishing media to the tank. This enables simple, fast and regular testing of the device’s functionality, including the ability to check the proportioning without wasting any concentrate.

We recommend on larger systems to use parallel installations of FIREMIKS instead of relying on one big unit. Parallel installation increases the safety, reliability and furthermore the capacity of the system. For example you may install 2 units x 12.000 lpm = 24.000 lpm, or 2 units x 8.000 lpm = 16.000 lpm flow capacity. 

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FIREMIKS works with all common types of nozzles, among others: low expansion, medium expansion and high expansion nozzles, foam sprinkler heads, spray nozzles, foam monitors and foam Chambers.

You will find further information and documents, such as our Installation Manual, Datasheet and Flow Chart on our Download page.

Do not hesitate to contact us for more information!

FIREMIKS Recommended Setup -Fixed  - Automatic flushing




Firemiks is installed by using the mounting interface on the bottom of the unit