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Portable Electric Proportioning System


One Seven 24V Portable Electric Proportioning System

The Gold Standard in Foam Proportioners has arrived! Super simple to use. Robust design. Highly accurate.

Actually, the One Seven 24V Electric Proportioning System is more than just a foam proportioner. It’s a fully automatic management sytem that makes your job easier by calculating all the elements to deliver a perfectly proportioned foam solution.

The OSP-24i-T provides highly precise proportioning of the foaming agent and offers constantly optimal proportioning rates, independent of varying flow, pressure and backpressure. It is a technologically modern alternative to the equipment still used by many fire departments and mining operations.

Incredible Water Flow rate of up to 3000L/min!

This highly unique electric proportioning system can be used with both Newtonian and non-Newtonian foam concentrates. This means that it can be used with foams targeting oil, polar solvent and alcohol fires. Perfectly suited to our full range of VS Focum firefighting foams. Download the Brochure here.


  • Optimally calibrated ex works, no calibration effort for the user
  • Automatic adjustment of proportioning rate when foaming agent is changed
  • Highly precise proportioning, even at lowest proportioning rates
  • Automatic adjustment of flow volume in case of viscosity change
  • Automatic priming and automatic rinsing incl. drainage
  • Monitoring of all relevant parameters, functional reliability due to emergency programs
  • ideal for use with modern high performance foaming agents with proportioning rates of economical 0.3 – 1.0%
  • 5-inch color display with touchscreen shows the measured sensor data for system monitoring
Electric Proportioning System


StandardPPPS 2400/0.1-1.0 (in accordance with EN 16327)
DriveElectric, connection via two-pole NATO cable to the vehicle
PumpBrass plunger pump
CoolingWater cooling
Working PressureMax. 16bar
Voltage24V DC
Power consumption (dep on foam type)Max. 60 A (at max. working pressure)
Water flow measuring sectionMagnetic-inductive flow meter, 100 … 3,000 l/min
Nominal flow rate100 … 2,400 l/min
Pressure lossMax. 1.0 bar (at nominal flow rate)
Foam concentrate sensorMagnetic-inductive flow meter
Flow rate0.3 … 24 l/min at 10 bar
Proportioning rate0.1 … 9.9 %, steplessly adjustable
Suction heightUp to 1.50 m
WeightApprox. 45 kg
Dimensions697 x 382 x 442 mm

Optional specs – configure to suit your set up

one seven options
20-555236 1.5m suction pipe with Storz
Electric Proportioning System
20-500008645 Storage rails
one seven options
20-500008520 connecting cable 5m 24V w NATO adaptors
one seven options
20-500008521 connecting cable 5m 24V w NATO/clamps
one seven options
20-500008522 20-500008845 NATO socket w 2m connecting cable 35mm²
one seven options
20-500008845 NATO socket w 0.4m connecting cable 35mm²
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Fire Sale - Clearance

It’s time to make some room in the warehouse.These top quality products are heavily discounted and ready to ship.  Hurry – stock is limited!