How they operate
In a typical closed-head sprinkler installation, each head activates when its heat-sensitive element reaches the intended temperature. All sprinklers do not open because smoke is detected at one point. Other systems, such as deluge systems, operate differently. The overall purpose is to control or extinguish fire within the conditions for which the system was designed.
Related concept: Fire protection systems.
A system matched to the risk
Design considers fuel, activity, storage, height, arrangement and water supply. Replacing boxes with plastic containers, raising racks or introducing new products can change water demand. Sprinklers on the ceiling do not establish protection for every commodity and height. Information on the design basis must be retained to assess such changes.
Keeping discharge unobstructed
Beams, lighting, ducts and stored goods can obstruct water distribution. The clearances and conditions of the design and applicable regulations must be respected. Objects must not be hung from pipework and heads must not be painted. Components exposed to impact need compatible protection without obstacles that prevent heat detection or correct discharge.
Valves, supply and alarms
A closed valve can leave an area unprotected even when everything appears normal. Maintenance must control impairments, temporary measures and restoration of service. Supply, signals and components are checked according to the planned programme. Flow detection indicates system operation and must be connected to an organised response.
Example of increased storage
A hypothetical warehouse adds two levels to its racks. Before using them, the team reviews clear height, load type, water distribution and supply capacity. Adding a maximum-height sign without validating the system does not resolve the change. The decision must be linked to the updated design and permitted operating conditions.
What sprinklers do not replace
Sprinklers do not remove the need for evacuation, alarms, compartmentation or ignition prevention. Their reliability depends on consistent design, installation, maintenance and use. Numerical requirements from foreign standards do not automatically apply in Spain. The applicable requirements for the particular system and establishment are used.
