Foam Proportioning Unit

Foam Proportioning Unit – Bladder Type is a self-contained foam proportioning unit used for injecting the foam concentrate into fire-water stream over a wide range of flow and pressure.

Units are available from 200 Liters to 15,000 Liters in Ver- tical as well as Horizontal Mounting. General arrangement of vertical mounting shall be as per Fig.02 and horizontal mounting shall be as per Fig.01.


The dimensions of foam vessel may be subject to change as per changes in design. Unit consists of a foam vessel, foam bladder, foam proportioner, inter- connecting piping, valves and concentrate level gauge.

Note – Foam Bladder is UL Listed for use with AFFF & ARAFFF Foam Concentrates.


  • UL LISTED with AFFF-3% & AR-AFFF3% Foam Concentrates
  • Designed & Constructed as per ASME Sec.VIII Div.1 (Optional – ASME U Stamped)
  • Largest Range of Capacities (200 Liters to 15000 Liters) in Vertical & Horizontal Mounting
  • Largest Range of Ratio Controllers 50NB/80NB/100NB/150NB/200NB
  • Widest Flow Range (75-20,000 LPM)
  • Lowest Proportioning Losses
  • Nylon reinforced nitrile foam bladder is UL Listed with AFFF& AR-AFFF Foam
  • Concentrate & compatible with all types of foam concentrates
  • High reliability and design simplicity minimizes chances of system failure
  • Manual I automatic operation
  • Horizontal I Vertical Mounting
  • Low installation cost
  • Can be adapted into existing foam system