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Our employees explain and illustrate the requirements of standards and regulations already in consultation meetings and thus facilitate the implementation and safe application in daily work. In addition, they present engineering know-how from 50 years of practice as well as research and thus provide our customers with a decisive competitive advantage.

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Foam Technology

Holzhauer Pumpen GmbH

Foam Technology

For many fire incidents, foam is the much more efficient extinguishing agent.

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Fire protection for extreme situations.

For many fire incidents, foam is the much more efficient extinguishing agent. In many cases, the addition of foam agent reduces deployment time and the extinguishing agent consumption.

Our stationary foam proportioning stations with differential pressure proportioners are completely piped ready for installation with all necessary fittings and are tested on request (with water) as a unit on our test stand including test reports with performance curves.

As a proven foam concentrate pump unit

Consisting of foam concentrate pump, electric or diesel motor and switchgear on a base frame – space-saving with high performance, plug & play, no wiring required, mains-independent, reduced structure-borne noise and with few interfaces. Well thought-out down to the very smallest detail.

Also available as a single foam concentrate pump or as a vertical foam concentrate pump and control cabinet on a base frame.

As a foam concentrate system

  • Fire pump
  • Proportioning device
  • Foam concentrate pump unit
  • Power generator

Equipment

  • VdS-approved differential pressure foam proportioning devices
  • Electronic volume measuring device for main extinguishing water flow
  • Electronic quantity measuring device for the flow of the foam concentrate
  • Switching device for weekly test without foam agent
  • Brackets for floor or wall mounting
  • Variable piping design
Foam concentrates
  • Protein foaming agent (P)
  • Fluoroprotein Foaming Agent (FPS)
  • Film-forming fluoroprotein foaming agents (FFFP)
  • AFFF Foaming Agent (AFFF)
  • Alcohol-resistant AFFF foam concentrate (ARC)
  • Multigrade foaming agent (MB)
Advantages
  • Significantly lower differential pressure compared to other proportioning systems
  • lower delivery heads for the extinguishing water pumps
  • High proportioning accuracy already from 200 l/min
  • Safe operation even with small extinguishing water flows
  • insensitive to dirt in the extinguishing water flow
Application area
  • Flow rate 4,000 to 30,000 l/min
  • Operating pressure up to PN 25
Media
  • Extinguishing water / seawater / other water qualities
Controller
Controller
  • With front door labelling in the specific order language
  • Aggregate type plate with the main machine data and the recognition numbers of the main components
  • Elastic vibration-decoupled mounting of the switchgear
  • Attached and piped pressure switch assembly, wired with wire breakage and short circuit monitoring, relief hose lines for discharging the leakage water when testing the unit, pressure gauge with bar/PSI double scaling with adjustable marker pointer for marking the starting pressure.

Applications

Reference Projects

Did you know …

Sprinklers react to increased temperatures around a fire source, not to smoke.

Let us help you!

Our employees explain and illustrate the requirements of standards and regulations as early as the initial consultation phase and thus facilitate the implementation and safe application in your daily work. In addition, they present engineering expertise spanning 50 years of hands-on application and research and thus provide our customers with a decisive competitive edge.