Fire Sprinkler Inspection

Otis Certified Fire Sprinkler Inspection Services

Fire Sprinkler Inspection

Fire sprinkler systems are effective fire protection systems that do not need any supervision. Fire can break any time of the day. Sprinkler systems are one of the most reliable firefighting systems that can control or even extinguish a fire. This is the reason why fire sprinkler systems are known as one of the most reliable fire suppression systems, which protect occupants and property from fire. Sprinkler head (depending on temperature rating) will trip (sprinkler head bulb breaks) when the temperature reaches its temperature rating and allow pressurized water to flow.

Types of Sprinkler Systems

Wet Pipe Sprinkler System

A wet-pipe sprinkler system is a fire sprinkler system contains pressurized water within the piping. When a sprinkler head gets activated by heat, the system will discharge the pressurized water from the activated sprinkler head. If the fire spreads out to other areas of the building and triggers more sprinkler heads, the water will discharge from those sprinkler head as well.

Dry Pipe Sprinkler System

A dry pipe sprinkler system is a sprinkler system contains pressurized air. When the temperature reaches the sprinkler head’s rated temperature, the head will allow compressed air to release. This will allow dry sprinkler valve trigger allowing pressurized water to flow into the sprinkler pipes and expel from the triggered head. Dry system is ideal for environment susceptible to freezing temperature.

Pre-action

The pipes are either charged with compressed air or water. Pre-action sprinkler system requires two different heads (zones) to be triggered in order to start water flow. If only one of them triggers, bells will go off; however, the sprinkler system will not be activated. If another head gets triggered, the solenoid will be operated at the sprinkler valve. This action will activate the system by allowing water flow in the lines. Pre-action systems are used to mitigate potential water damage by a possible physical or accidental damage to the sprinkler head. The pre-action system is used in buildings where accidental activation can cause significant damage to items. Places like libraries, museums, and data centers are excellent examples of buildings that pre-action could be used.

Deluge System

The sprinkler pipes are not charged with water and the system has open sprinkler heads in deluge system. A fire alarm system detects the alarm and triggers sprinkler system to discharge water from all sprinklers heads. Deluge system is appropriate for places where highly combustible materials are present. Power plants, chemical warehouses, aircraft hangars, etc.

Otis Fire Protection provides services for inspection, testing, maintenance and repair of fire sprinkler systems throughout Greater Vancouver. Our experienced and ASTTBC certified technicians will ensure that your sprinkler system is in good working condition and complies with NFPA and local fire code.

Fire Sprinkler System Inspections Vancouver

NFPA 25 sets the minimum requirement for inspection, testing, and maintenance of sprinkler systems.

Daily/Weekly Inspection

  • Enclosure during cold weather.
  • Pressure gauges. If air pressure fluctuates and compressor keeps running frequently, a sprinkler technician must check the system to determine the reason of air leakage.
  • Sprinkler room temperature, ensuring that it is higher than 4 Celsius. Some systems, especially newer buildings, have supervisory, which results in fire alarm trouble if the room temperature gets close to 4 Celsius.

Otis Fire Protection technicians will train your staff in performing daily and weekly inspection. Contact us now to book for daily/weekly inspection training.

Monthly Inspection

  • Visual inspection of control valves.
  • Visual inspection of fire department connection.
  • Inspecting pressure gauges on dry and preaction systems.

Quarterly Inspection and Testing

  • Inspection of pressure gauges on wet and deluge systems.
  • Inspection of supervisory signal devices.
  • Waterflow alarm devices.
  • Testing mechanical water flow alarm devices.

Annual Inspection and Testing

  • Hangar, seismic braces, and supports.
  • Inspection of information signs including hydraulic design information sign.
  • Inspection of pipes, fittings and sprinkler heads.
  • Main drain water flow (Wet System)
  • Trip test (Dry System)
  • Antifreeze solution
  • Valves
  • Inspection of heat tracing is determined by the manufacturer of a system.

NFPA 25: 5.1.1.2 & 13.1.1.2

3 Years Testing and Maintenance

  • Full flow trip test is performed every 3 years.
  • Air leakage for ensuring the system does not lose more than allowed psi.

NFPA 25: 13.1.1.2

5 Years Testing and Maintenance

  • Replacement or calibration of gauges.
  • A full flow test of each valve in 5 years intervals and shall be compared to prior test results.
  • Internal inspection of strainers, filters, restricted orifices, and chambers.

Winterization of Dry Sprinkler Systems

Winter is right around the corner and your dry sprinkler system can be vulnerable to cold weather. The common question we get from our customers is  “why do I need winterization for a dry sprinkler system?” Water vapor develops inside the dry sprinkler pipes throughout the year resulting in condensation that could cause water accumulation at low points of dry sprinkler systems. When the temperature hits 0 celsius, water will freeze and crack the pipe. Loss of air from the cracked pipe will cause air pressure changes in the system then the system will flood with water. It will result in severe damage to the sprinkler system as well as your property.

You need winterization if you have the following.

  • Dry Sprinkler system or low point of your system in an unheated area.
  • The weather can get below 0 Celsius.

If your system is in a heated area, you need to inspect the building to make sure there is no broken windows or wall cracks that a draft could enter through.

Contact Otis Fire Protection, one of the most reliable fire protection company in Vancouver, to book for inspection, testing, and maintenance of your sprinkler system.

 

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