Description
One Seven OSP-48i Proportioner
The One Seven OSP-48i is a heavy-duty foam proportioning system designed for high-capacity firefighting applications. Like the OSP-32i, the OSP-48i is built as a combination of two optimally matched proportioning systems, working together to deliver maximum precision and reliability.
Foam concentrate is automatically metered based on the set proportioning rate and the real-time water volume flow. Advanced sensor technology continuously monitors performance, detecting and correcting any deviations caused by viscosity changes or temperature fluctuations. This guarantees constant and accurate foam dosing without the need for calibration or manual adjustments.
The OSP-48i is equipped with a colour display for intuitive operation and real-time system monitoring. For maximum reliability, emergency programs covering all essential functions can be activated at the push of a button.
With a flow rate capacity of up to 48 L/min and dual plunger pumps suitable for all approved firefighting foams up to 500 mPa·s viscosity, the OSP-48i is built for large-scale firefighting vehicles, industrial facilities, and high-demand fixed foam installations. Optional extras such as tank filling pumps, tank level indicators, and multi-tank changeover valves provide the flexibility to adapt to different foam classes during operation.
Key Advantages
- No calibration required
- Highly precise proportioning, even at very low dosing rates
- Accurate and reliable flow metering
- No manual adjustment when changing foam types
- Constant, optimum proportioning even with viscosity changes
- Automatic priming, rinsing and drainage for fast operational readiness
- Fail-safe operation supported by built-in emergency programs
Technical Specifications
- Standard: DIN EN 16327 – PPPS 4800/0.1-1.0
- 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. 120 A (at max. working pressure, foam dependent)
- Water sensor: Magnetic-inductive flow meter, 50 … 4,712 L/min
- Foam concentrate sensors: Two magnetic-inductive flow meters
- Flow rate: 0.3 … 48 L/min at 10 bar
- Proportioning rate: 0.1 … 9.9 %, continuously adjustable
- Weight: Approx. 40 kg
- Dimensions (L x W x H): Each 545 x 360 x 245 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:
- 50 … 2000 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
Applications
The One Seven OSP-48i is designed for large-scale firefighting operations, industrial fire protection, and high-demand fixed foam systems across Australia. Its extended flow range makes it the most powerful model in the OSP-i series, providing unmatched reliability and precision where maximum foam delivery 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-32i here
