Description
One Seven OSP-32i Proportioner
The One Seven OSP-32i is a high-capacity foam proportioning system designed for the most demanding firefighting applications. Unlike single-unit models, the OSP-32i combines two optimally matched proportioning systems to deliver superior performance and reliability.
Foam concentrate is automatically metered based on the set proportioning rate and real-time water flow measurements. Thanks to advanced sensor technology, the system detects and corrects any deviations caused by viscosity changes or temperature fluctuations. This guarantees consistently accurate dosing without the need for manual adjustment.
A colour display provides intuitive operation and live system monitoring. In critical situations, essential emergency programs can be started instantly at the push of a button.
With a flow rate range of 0.2 to 32 L/min and dual plunger pumps suitable for all approved firefighting foams up to 500 mPa·s viscosity, the OSP-32i is ideal for large-scale firefighting vehicles, industrial fire protection, and fixed foam installations. Optional extras such as tank filling pumps, tank level indicators and multi-tank changeover valves provide added flexibility for different operational needs.
Key Advantages
- No calibration required
- Highly precise proportioning, even at very low rates
- Accurate and reliable flow metering
- No manual adjustments needed when switching foam types
- Constant, optimum proportioning even with viscosity fluctuations
- Automatic priming, rinsing and drainage for fast operational readiness
- Fail-safe operation with built-in emergency programs
Technical Specifications
- Standard: EN 16327 – PPPS 1600/0.1-2.0
- Drive: Two electric brushless synchronous motors, 1 kW each, CAN bus controlled, variable speed
- Pump: Two brass plunger pumps
- Cooling: Water cooled
- Lubrication: Oil
- Working pressure: Max. 16 bar
- Voltage: 24 V DC
- Power consumption: Max. 80 A (at max. working pressure, foam dependent)
- Water sensor: Magnetic-inductive flow meter, 50 … 2,000 L/min
- Foam concentrate sensors: Two magnetic-inductive flow meters
- Flow rate: 0.2 … 32 L/min at 10 bar
- Proportioning rate: 0.1 … 9.9 %, continuously adjustable
- Weight: Approx. 40 kg
- Dimensions (L x W x H): Each 515 x 410 x 210 mm
Connections
- Foam concentrate inlet: Two 25 mm hose connections
- Foam concentrate outlet: Two 13 mm hose connections
- Rinsing inlet: Two 8 mm hose connections (quick connectors)
- Priming outlet: Two 9 mm hose connections
- Water cooling: Two 8 mm hose connections (quick connectors)
Optional Configuration
- Alternative water sensors:
- 15 … 900 L/min
- 100 … 3,200 L/min
- Changeover valves for two or three foam concentrate inlets
- Connection for up to two tank filling pumps
- Connection for up to two tank level indicators
- Intensive rinsing connection at the changeover valve
- Optional 7” touchscreen display
Applications
The One Seven OSP-32i is designed for large-scale firefighting vehicles, industrial sites, and high-demand fixed foam systems across Australia. With its dual proportioning design and extended flow capacity, it provides unmatched precision and reliability where maximum performance is required.
Enquire Today
As the exclusive Australian distributor for One Seven, Fire Response can help configure the OSP16i to meet your exact needs.
Contact us today to learn more about how this innovative system can enhance your firefighting capabilities.
See the OSP-48i here
