Fike MicroMist® Water Mist Fire Suppression
MicroMist is a self contained, high pressure water mist system designed for total compartment protection of machinery spaces and compartmentalized gas turbine generators. SSI engineers, installs, and services MicroMist systems across the East Coast.
Quick take
If you need water based suppression with less water mass and less cleanup than traditional sprinkler or deluge approaches, MicroMist delivers fine droplet discharge to rapidly cool and control fire growth inside tight, high energy compartments.
On This Page
Overview, How MicroMist Works, Common Applications, Key Specifications, Design and Installation Checklist, Service and Lifecycle Support, Resources and Downloads, FAQ, Talk to SSI
MicroMist Overview
MicroMist is a packaged, skid mounted water mist solution that stores water onboard and uses nitrogen cylinders as the propellant. It is designed for enclosed, defined volumes where fast fire control is required and where limiting total water discharge matters.
Best Fit
Machinery spaces, turbine enclosures, generator packages, and similar compartmentalized hazards where traditional water systems can create major collateral damage and long downtime.
Why Water Mist
Fine droplets rapidly absorb heat and expand to steam, helping reduce fire intensity with significantly lower total water mass than sprinklers. It can reduce cleanup and water damage, but it is still water and must be applied correctly.
What SSI Delivers
Hazard survey, design support, code alignment, installation, commissioning, and long term inspection, testing, and maintenance. We help you avoid misapplication, poor nozzle placement, and missed shutdown interlocks.
How MicroMist Works
- Detection and release, the system is activated by an approved detection and control strategy, including required shutdowns and interlocks for the protected space.
- Nitrogen driven discharge, nitrogen cylinders provide the propellant force to discharge water through water mist nozzles.
- Cycling water mist pulses, MicroMist uses a cycling discharge approach designed to maintain suppression effectiveness while managing total water use.
Design details, nozzle layout, and shutdown logic matter. Water mist performance depends on enclosure geometry, ventilation, obstructions, and the specific hazard. SSI helps ensure the system is applied and installed to match the use case, not guessed at.
Common Applications
Industrial and Power
- Gas turbine generator compartments
- Machinery spaces and skid packages
- Diesel generator enclosures and auxiliary rooms
Why These Spaces Choose MicroMist
- Enclosed volumes with high heat release potential
- Tight geometry, equipment congestion, and obstructions
- Downtime and cleanup cost sensitivity
Key Specifications
The values below are taken from the MicroMist system data sheet. Final design depends on the protected volume, nozzle selection, obstructions, ventilation, and listing requirements.
| Nozzle flow, nominal | Approximately 2.1 gpm (8 L/min) at 310 psi (21 bar) |
| Maximum protected volume | Up to 9,175 ft3 (260 m3) |
| Maximum ceiling height | 16 ft (4.9 m) |
| System configurations | 70 gallon and 112 gallon (267 L and 423 L) pre engineered systems |
| Discharge method | Cycling discharge pulses |
| Approvals | FM Approved, per data sheet (J.I. 3000746) |
Important, water mist is performance based. The right nozzle types, placement, ventilation controls, and shutdown logic are the difference between a system that works and a system that only looks good on paper.
Design and Installation Checklist
Before You Specify
- Define the hazard volume boundaries and openings
- Confirm fuel sources, ventilation, and expected fire scenarios
- Identify required shutdowns, dampers, fans, and interlocks
- Choose detection strategy and releasing logic appropriate to the compartment
During Installation
- Verify nozzle selection and spacing for the specific compartment layout
- Protect piping routes from heat and mechanical damage
- Coordinate controls wiring, releasing circuits, and annunciation
- Confirm signage and safety requirements for the space and occupancy
Commissioning, What SSI Validates
- System readiness, cylinder pressures, water charge, and control panel status
- Detection operation, releasing logic, and time delays
- Shutdown interlocks, fans, dampers, and required equipment trips
- Documentation package, owner training, and maintenance plan
Service and Lifecycle Support
A specialty suppression system is only as reliable as the inspection and maintenance behind it. SSI supports MicroMist systems with scheduled inspection, testing, and maintenance plans, plus service response when critical equipment is down.
What We Track
- Cylinder condition and pressure, valves, and system readiness
- Control panel health, releasing circuits, and supervision
- Nozzle condition, obstructions, and room changes that affect performance
- Owner documentation updates and compliance records
Common Issues We Prevent
- Blocked nozzle patterns due to equipment changes or poor housekeeping
- Ventilation changes that undermine suppression effectiveness
- Missed interlocks that allow fans to defeat mist distribution
- Control faults that only show up during a real emergency
Resources and Downloads
MicroMist Suppression System Data Sheet
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Related solution family, Specialty Water Suppression Systems. Compare packaged supply solutions like Fike DuraQuench Pro.
Frequently Asked Questions
What hazards is MicroMist designed for?
MicroMist is designed for total compartment protection of machinery spaces and compartmentalized gas turbine generator enclosures. SSI confirms suitability based on the hazard, geometry, and required listing criteria.
Does water mist reduce water damage compared with sprinklers?
Water mist uses much less total water mass than traditional sprinklers in many listed applications, which can reduce cleanup time and secondary water damage. It is still water, and the right design, nozzles, and shutdown logic are critical.
How is MicroMist discharged?
MicroMist stores water onboard and uses nitrogen cylinders as the propellant to discharge water mist through the nozzle network. The system uses a cycling discharge approach, per the published data sheet.
What makes or breaks performance in the field?
Enclosure boundaries, ventilation, obstructions, nozzle selection, and shutdown interlocks. If fans keep running or if nozzles are blocked by equipment changes, performance can be compromised. SSI addresses this during design review and commissioning.
How do I choose between water mist, clean agent, or CO2?
It depends on occupancy, tolerance for residue and water, hazard type, enclosure characteristics, and compliance constraints. If you need zero residue, review Clean Agents. For certain non occupied enclosures, CO2 systems may be considered. SSI helps align selection with risk, code, and real operational requirements.
Talk to SSI About MicroMist
If you are protecting turbines, machinery spaces, or packaged equipment where traditional water approaches create expensive collateral damage, MicroMist may be a strong fit. The fastest way to get the right answer is a short hazard review, a compartment volume check, and a discussion of shutdown interlocks.
Note, product capabilities and approvals can vary by configuration, jurisdiction, and application. Always confirm final design details with SSI during engineering review.