Foam Proportioning


The HYTRANS PowerFoam is a sophisticated foam proportioning system that provides a very accurate foam dosage over the full range of water/foam mixture and water/foam quantity. This reliable foam dosage makes it possible to optimize the foam rate to a less expensive value.

ALCO trailer monitor with foam, @ 40,000 lpm

ALCO trailer monitor with foam, @ 40,000 lpm

The HYTRANS PowerFoam can be delivered as a stand-alone unit or can be built in the HYTRANS AutoBoost or various larger HYTRANS HydroSub units.

Due to the absence of a conventional proportioner, there is no pressure loss in the main line.

The foam concentrate is injected directly into the boost pump or directly into the water flow. This comprises a better mixing behaviour, shorter foam lines and an easier handling and cleaning proceedings.
To include all these features the foam adding system is equipped with:
• Very accurate water flow and foam flow settings
• Integrated speed control of the foam pump, regulated by the control unit
• Set point for foam rate (%) continuous adjustable between app. 0-6% (increments of 0.1%)
• Foam rate (set point % and actual %), actual foam flow and total foam consumption displayed at the control unit
• Optimise foam logistics and foam saving due to very accurate foam proportioning


– 6% @ 24,000 l/min
– 3% @ 48,000 l/min
– 1% @ 144,000 l/min

– Diesel-hydraulically driven foam gear pump injects exact amount of foam in water stream
– Variable hydraulic pump allows 0% – 100% flow rate regulation foam
– Foam % not depending on flow rate and/or water pressure
– Foam logistics not near the fire
304 SS or 316 SS stainless steel construction

-300mm /  12” industrial water flow meter determines water flow (when built-in the calculated flow is used)
– 100mm / 4” industrial flow meter determines water flow

– Software adjusts foam pump speed continuously to set percentage.

To find out more about foam proportioning and the Hytrans PowerFoam system, please click here to contact us.