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Data Center (Preaction System)
Protect Your Data Infrastructure. Without the Water Risk.
Data centres and server rooms demand the highest level of fire protection precision — suppressing a fire with absolute reliability while ensuring that inadvertent water discharge cannot destroy irreplaceable IT infrastructure. Digitech designs and installs pre-action fire suppression systems specifically engineered for data centre environments, combining the reliability of sprinkler-based suppression with the safety of a two-signal actuation requirement. Our systems are designed to NFPA 13 and NBC standards and are coordinated with your facility’s very early smoke detection and gas suppression layers for complete protection coverage.
Single Interlock, Double Interlock, and Flooding Systems
Digitech designs all categories of pre-action suppression systems based on your data centre’s risk profile, fire detection architecture, and insurance requirements:
Single Interlock Pre-Action
Sprinkler pipework charges with water when the detection system activates — but sprinkler heads must still fuse thermally before water discharges, providing one layer of confirmation.
Double Interlock Pre-Action
Water enters the pipework only when both the fire detection system AND a sprinkler head activate — providing maximum protection against accidental discharge in critical spaces.
Deluge Pre-Action (Flooding)
All sprinkler heads open simultaneously on system activation — used for specific high-value areas where simultaneous suppression across the entire zone is required.
A Layered Approach to Data Centre Fire Protection
Pre-action suppression is one layer in a comprehensive data centre fire protection strategy. Digitech designs and integrates the complete protection stack for your critical infrastructure environment.
VESDA / Aspirating Detection
Very early smoke detection identifying sub-visible smoke particles long before a conventional detector would activate — providing maximum evacuation and response time.
Gas Suppression (FM-200 / Inert Gas)
Clean agent suppression as the primary or supplementary suppression layer — extinguishing fires without water, residue, or damage to IT equipment.
Pre-Action Sprinkler
Water-based backstop suppression activated only under confirmed fire conditions, preventing catastrophic fire spread if clean agent fails to control the event.
What Your Data Centre Fire Protection System Can Do
- Two-signal actuation ensuring water cannot enter sprinkler pipework without confirmed detection AND thermal fusing — eliminating accidental discharge risk.
- Supervisory air pressure monitoring in dry pipework, alerting immediately to any pipe damage, corrosion, or mechanical failure before it affects system integrity.
- Integration with VESDA aspirating detection for the earliest possible fire signature identification in raised floor and above-ceiling spaces.
- Automatic coordination with precision air conditioning shutdown on system activation to prevent fire spread via CRAC unit airflows.
- UPS and generator room coordination ensuring power systems are safely isolated in sequence with suppression system activation.
- Full commissioning to NFPA 13 and NFPA 75 standards with witnessed hydrostatic tests, trip tests, and operational verification.
- Quarterly inspection and annual full test programme to NFPA 25 standards, maintaining system compliance and insurance validity.