Watermist Applicator 126
The Watermist Applicator 126 (FI-WMA126) is a patented, lightweight watermist system designed to cool electric vehicle battery fires directly at the source. Deployed under the vehicle, it delivers efficient mist cooling, improves firefighter safety, and limits fire escalation.
Detailed Overview
The Watermist Applicator 126 (FI-WMA126) represents a revolutionary approach to fighting electric vehicle (EV) fires, specifically designed to address fires at their source — the lithium-ion battery pack. By applying water mist directly under or near the vehicle, the system enables rapid cooling and effective suppression where EV fires most commonly originate.
This patented solution delivers controlled, high-efficiency water mist that significantly reduces heat, slows thermal runaway, and limits fire escalation, improving safety for first responders while minimizing damage to vehicles and surrounding infrastructure.
Performance and Application
The FI-WMA126 is engineered for direct under-vehicle deployment, allowing responders to cool the battery enclosure without needing immediate vehicle penetration.
Targets EV battery fires at the source
Rapid temperature reduction through fine water mist
Improves control during early and developed fire stages
Designed for single-operator use
Its compact and mobile design makes it especially suitable for parking garages, ferries, tunnels, and other confined or high-risk environments.
Watermist Output and Flow Performance
At 4 bar water pressure, each unit produces a highly effective water mist with a minimum output of 137 liters per minute, ensuring strong cooling performance without excessive water usage.
Water Consumption by Pressure
Pressure (bar) | Water Consumption (L/min) |
|---|---|
0.5 | 60 |
1.0 | 79 |
2.0 | 104 |
3.0 | 122 |
4.0 | 137 |
5.0 | 150 |
7.0 | 172 |
10.0 | 198 |
Design and Handling
Weight: only 8 kg, enabling easy handling by a single person
Pivotable handle for precise positioning under the vehicle
Handle is not electrically conductive, increasing operator safety
Compact profile allows placement beneath low-clearance vehicles
Materials and Construction
Manufactured from aluminium, combining durability with low weight
Designed for professional firefighting and repeated operational use
Patented System
The Watermist Applicator 126 is part of Fire Isolator’s patented watermist technology, making it unique in the global market and purpose-built for modern EV fire challenges.
Connections
One Storz C02 connector
Brass driving rings: 4 pcs Ø60
Nozzles: 26 full cone Ø2.4 mm nozzles
Key Benefits
Direct cooling of EV battery fires at the source
Lightweight and single-person operable
Patented and market-unique solution
Ideal for confined and complex environments
Reduces fire escalation and structural damage
Technical Data Sheet
| Specifications | Rating / Classification |
|---|---|
| Dimensions | 800 × 500 × 100 mm |
| Material | aluminium |
| Weight | 8 kg |




