Inspection of Sprinkler Systems

Short answer: Sprinkler systems are fixed, water-based fire suppression systems that automatically extinguish/control fires at their point of origin. Pumps, valves, piping networks, and sprinkler heads are periodically inspected according to TS EN 12845 and BYKHY standards.

Sprinkler systems are the most effective automatic barrier for protecting lives and property. A closed valve, low pressure, or a painted/clogged nozzle can prevent the system from activating in the event of a fire.

Relevant standard: Defines the design, installation, and maintenance of sprinkler systems. EN 12845 (A2:2026) Review the standard.

Periodic inspections verify in advance that the system will deliver water at the designed flow rate in a real fire and document its legal compliance.

What is checked?

  • Sprinkler heads: paint, corrosion, clogging, and directional protection.
  • Open/locked status of main control and zone valves.
  • Alarm valve, flow switch and test line.
  • Pump pressure, flow rate, and automatic activation.
  • Pipe network hanger/support and sealing
  • Water source capacity and redundancy
  • Air pressure and rapid discharge in dry systems.

Method and Standard

Inspection includes visual inspection and functional and flow tests via a test line. Design and maintenance requirements. TS EN 12845 (Fixed fire extinguishing – automatic sprinkler) and determined by BYKHY. The alarm valve is tested to verify the triggering of the flow switch and the audible alarm; the pump is activated automatically upon pressure drop.

Legal Basis and Period

Sprinkler systems must be regularly inspected in accordance with BYKHY and relevant TS EN standards, and the inspections must be reported by authorized personnel.

Common Nonconformities

  • Main valve left closed after maintenance/repair
  • Painted or corroded sprinkler heads
  • Fire pump that does not automatically activate.
  • Clogged/non-functioning flow switch and alarm.

Frequently Asked Questions

Which standard is used to inspect sprinkler systems?

TS EN 12845 and BYKHY standards are used as a basis.

What is the most common defect?

The problem is that the main valve, which should have remained open after maintenance, was left closed.

How to test a pump?

By reducing the pressure, the pump's automatic activation and its ability to deliver the target flow rate/pressure are verified.

Document Your Fire Safety

for fire extinguishing system inspection Fire Installation Inspections Check out our page; mandatory periodic inspection Check our guide.

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