Design and installation guide
50 LT AFFF, AFFF-AR, synthetic or fluorine-free (NFF / F3) foam extinguisher: selection and application guide
Foam extinguishers are assessed for suitable solid-material and flammable-liquid risks through surface coverage and cooling. Select AFFF, AFFF-AR, synthetic or fluorine-free (NFF / F3) concentrate against the fuel chemistry, the device documentation and site conditions.
50 LT foam fire extinguisher considered for first response to flammable-liquid fires. The AFFF, AFFF-AR, synthetic or fluorine-free (NFF / F3) foam selection and proportioning are confirmed from the facility fire risk and protected materials.
01
Selection, placement and maintenance
Selection considers the product function, the protected risk and operating conditions together. These steps support the site survey and quotation.
Fuel and concentrate compatibility
Hydrocarbon and water-miscible polar fuels require different assessments. Check the concentrate and device pairing where alcohol resistance is needed; do not assume general suitability for live electrical equipment.
Transport route and hose access
Survey doors, thresholds and floor conditions along the trolley route. Plan hose deployment and a safe operator position together, and keep the extinguisher accessible.
Initial response and evacuation
Extinguisher use belongs in a trained-personnel response plan for an incipient incident with a safe escape route. Evacuation takes priority if fire grows, smoke becomes heavy or escape is threatened.
Inspection, recharge and return to service
Inspect the body, pin/seal, fitted pressure indicator and discharge hardware. Establish servicing and recharge against model instructions and applicable requirements, with qualified service after use or loss of charge.
02
Applications and site planning
These examples show why placement and equipment requirements can differ between facilities using the same product.
Production and storage areas
- Site requirement
- Stored materials, equipment and site movement can change together.
- Application approach
- Plan trolley movement and hose use around stacks and vehicle traffic.
Spaces using flammable liquids
- Site requirement
- Fuel type and concentrate compatibility.
- Application approach
- Match the agent and device to polar or hydrocarbon fuel.
03
Pre-quotation checklist
Scroll the table horizontally to view every column.
| Check item | Product / application | Information to assess |
|---|---|---|
| Capacity | 50 LT | Agent quantity, assessed with fire rating and placement |
| Extinguishing agent | AFFF, AFFF-AR, synthetic or fluorine-free (NFF / F3) foam; selected product scope | Label, fuel and use conditions |
| Arrangement | Wheeled extinguisher | Doors/thresholds, hose and operator access |
| Maintenance | Service against model instructions | Body, charge and discharge hardware |
Suitable selection matches capacity, agent and arrangement to the actual facility risk. We can assess survey, placement and servicing together to define this product’s role in your operation.

