National Foam
Around-The-Pump Proportioner Kit 1% Foam 60–400 GPM
SKU#: G365
Ships via Standard Ground
The Darley Around-The-Pump Proportioner is a simple and inexpensive way to add foam capability to all discharges of a truck.
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The Pump Around Proportioner Kit is a cost-effective solution designed to add foam capability to all discharge lines on a fire apparatus. It circulates a portion of pump output through an eductor and returns it to the pump inlet, allowing consistent and controlled foam proportioning across varying flow demands.
Features
- Variable flow rate: Adjusts discharge rate to meet specific application needs
- Infinite adjustment: Provides continuous flow control up to the unit’s maximum capacity
- Multi-line support: Allows different flow requirements to operate independently or in combination
Operational Performance
- Variable pressure: Operates effectively at any pressure above 120 psi
- Consistent operation: Pump performance remains the same whether flowing foam or water
- Balanced proportioning: Metering valve enables precise foam percentage control based on total discharge
System Advantages
- No back pressure limitations: Not affected by hose length or elevation changes
- No nozzle restrictions: Compatible with any nozzle size or type
- Simple integration: Adds foam capability without complex system modifications
System Design
- Pump around configuration: Recirculates discharge through an eductor back into the pump inlet
- Metering adjustment: Allows accurate proportioning down to 1%
- Hydrant compatibility: Designed for use with a maximum of 5 psi hydrant pressure
How is it used
The system is installed on a fire apparatus where a portion of the pump discharge is diverted through the eductor and returned to the pump intake. The operator adjusts the metering valve to achieve the desired foam percentage while maintaining the required flow rate and pressure for the application.
Intended for
Fire departments and apparatus operators requiring a reliable, adaptable foam proportioning solution for varied discharge lines and operational scenarios.
Maintenance information
Routine inspection of valves and connections ensures proper operation. Periodic checks of the metering valve and eductor help maintain accurate proportioning performance.
Storage information
Store components in a clean, dry environment when not installed on apparatus to prevent contamination and ensure readiness for deployment.
What is included
- Eductor
- Metering valve
- Check valve
- Water valve
- Foam valve
- Instruction panel plate
- Flow range: 60–400 GPM
- Minimum operating pressure: 120 psi
- Foam proportioning capability: Down to 1%
- Maximum hydrant pressure: 5 psi
- System type: Around-the-pump proportioner
- Model: 3207-6001-5