Water Mist Fire Suppression Systems

Water mist systems use finer water-droplet distributions than conventional sprinkler applications in order to enhance heat transfer, cool flames and hot gases and, under suitable conditions, reduce radiant heat exposure. System performance depends on droplet distribution, nozzle characteristics, operating pressure, water flow, enclosure geometry and the specific fire scenario being protected.

Where Can Water Mist Be Used?

• Machinery and equipment spaces
• Turbine, engine and technical rooms
• Marine applications
• Electrical and special-risk spaces where supported by the applicable test/approval scope
• Industrial processes
• Selected total-compartment and local-application systems

Key Design Considerations

• The protected hazard and fire scenario
• The manufacturer’s tested application scope
• Nozzle type, arrangement and permitted obstructions
• Operating pressure and hydraulic requirements
• Water supply and discharge duration
• Detection and activation method
• Effects of open or enclosed spaces and ventilation
• Commissioning and functional testing

Standards Approach

Standards such as NFPA 750 and the EN 14972 series may be applicable to water mist systems. However, water mist design generally cannot be reduced to a single generic density value. The tested application protocol, nozzle configuration and manufacturer design manual are critical to system performance.

Service Area

From Yalova, DEMOFIRE can provide water mist installation, commissioning, maintenance and technical support primarily in Istanbul, Kocaeli and Bursa and, depending on project scope, in Izmir and throughout Türkiye.

Can water mist replace sprinklers in every application?

No. Suitability must be evaluated against the actual hazard and the tested or approved application scope.

Is a high-pressure system always more effective?

No. Performance depends not only on pressure but also on nozzle characteristics, droplet distribution, flow rate and the tested system configuration.

Can water mist be used around electrical equipment?

It can be used where the selected system and its test scope support the application; electrical safety and equipment requirements must also be verified.