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Fire Protection and Extinguishing Systems
Fire protection and extinguishing systems: sprinkler, hydrant, gas and foam installations with design, installation and acceptance testing.
Fire protection and extinguishing systems are the contracting service of active extinguishing installations built to control or kill a fire in its incipient stage: water systems (sprinkler, hydrant), dry-foam systems and gas suppression solutions. While passive protection —compartmentation, escape routes, structural resistance— stays with architectural responsibility, this service is the engineering layer that detects and suppresses the fire. The goal is securing life safety through automatic suppression before the fire brigade arrives, limiting property loss and business interruption. The scope covers hazard class analysis, hydraulic calculation, equipment installation, test-acceptance and the maintenance plan.
System Families
- Sprinkler: Wet, dry, pre-action and deluge types; head spacing, coverage and water demand are calculated per hazard class (light-ordinary-high, storage included) with TS EN 12845 / NFPA 13 approaches. In freezable volumes the dry system choice and heating detail are critical design inputs.
- Hydrant installation: Indoor hydrant (TS EN 671 series), outdoor hydrant (TS EN 14339) and the fire water tank-pumping set; automatic start and redundancy are built on the electric-diesel-jockey pump trio.
- Gas suppression: Inert gases (IG-55/100/29), NOVEC-hydrocarbon clean agents and CO2 systems are designed with EN 12094 control valve sets for volumes that cannot take water — archives, server rooms, transformer-cell panels. Design concentration, room enclosure integrity and leak tests are verified.
- Foam systems: Low-medium expansion foam, tank farm-flammable liquid areas and heliport industrial fields are planned with monitors and foam generators.
Integration and Operation
The extinguishing system does not work isolated: automatic triggering by fire detection (double detector-evacuation delay in gas systems), a joint scenario with detection periodic inspection, announcement-driven evacuation and the door-damper-equipment parking position links (cranes such as lifting machines) are established. Kitchen hood (hood suppression) and transformer suppression are the specialised members of this family. Portable extinguishers (portable extinguisher inspection) placement-count-certificate complete the plan.
Testing, Acceptance and Periodic Maintenance
In commissioning the water side is verified by hydrostatic pressure test, stepped pump characteristic checks (jockey-electric-diesel), alarm test valve-flow switch functions and sprinkler endpoint tests. Gas systems run staged delay, automatic-manual discharge, audible-visual warning and gas detection-line leak controls; cylinder weighing (fill-leak percentage) is recorded. Periodic maintenance is the wet-dry-gas extinguishing system inspection — head cleaning, spare head stock list, valve-leak audit, detector-station trial — on the annual plan.
Legislation and Outcome
Installation runs under the duties of Law No. 6331 and the Regulation on Protection Against Fire in Buildings (system selection-water demand-facade volume thresholds), pressure equipment rules for gas cylinders and the building permit-fire clearance file; technically with TS EN 12845, EN 12094 and NFPA references. Suppression infrastructure is the one mechanical discipline demanding early project decisions: shaft, passage, water tank and roof load bind architecture. Seek engineering input at the early stage via the contact page; this service sits under our Mechanical Installation Contracting heading.
FAQ on Fire Protection and Extinguishing Systems
The hazard class analysis decides: sprinkler (wet-dry-pre-action-deluge; TS EN 12845 hydraulic calculation) for human-heavy-low fire load buildings, gas suppression (inert gas-NOVEC-CO2; EN 12094) for volumes that cannot take water (archive-server-transformer), foam-water and hydrant (building outdoor) lines for flammable liquid fields. The selection ties into the Fire Buildings Regulation thresholds and the fire authority opinion.
Suppression does not work isolated: automatic triggering by fire detection (double detector-evacuation delay on gas), announcement-driven evacuation, door-damper-door release, lift stop and camera verification links are established. The scenario is tried end to end as detection-cut-trigger-feedback chain through the panel; the record of this dialogue is the acceptance file.
Water side: hydrostatic pressure test, staged jockey-electric-diesel pump characteristics, alarm test valve-flow switch-wet zone trials and sprinkler endpoint pressure test. Gas side: staged delay-automatic-manual discharge, audible-visual warning, cylinder weighing (leak percentage limit) and room enclosure integrity test. The annual regime of our extinguishing system inspection service builds on these first values.
A left-closed main valve, wrong post-indicator position, blocked-painted sprinkler head, missing spare head stock, a cycling jockey pump (small leak-pressure drop), faulty flow switch-zone strap, under-charge gas cylinder-valve membrane, degraded enclosure seal. Portable extinguisher completion and the detection annual check are managed on one calendar; insurance and fire audits ask these reports.