Protecting saunas with high pressure water mist fire suppression

HIGH PRESSURE
WATERMIST FOR
SAUNAS

Saunas are now found in a wide range of premises including hotels and leisure centre’s and are growing in popularity. Due to demand these are often installed into existing buildings which haven’t been purpose built and the risk from a fire is therefore greater than purpose built self-contained units.

The risk of fire is increased as saunas are typically constructed from timber and can reach temperatures of up to 95° C. They are also usually electrically operated and thermostatically controlled.

Some large fires have been attributed to saunas over the last few years so the risk to life, property and business interruption resulting from such fires can be substantial. The main cause of fire resulting from saunas is considerable as a number of factors are at play.

These include the following:

  • Poor housekeeping - combustible materials left in the vicinity of the heater e.g. robes or towels
  • Heaters left ‘on’ and unattended for prolonged periods of time.
  • The failure to off power to the sauna on cessation of business.
  • Thermostat failure
  • Lack of or inadequate inspection regimes during times of operation
  • Lack of maintenance
  • Electrical faults e.g. internal sauna lighting
  • General wear and tear abuse of use

How it works

The Hydramist® 15APU is a wet pipe fire suppression sytem with stainless steel pipework permanently filled with water under monitored pressure. Operation is triggered automatically when a nozzle bulb ruptures. The monitored system pressure drops causing the high pressure pump to activate.

Automatic activation is acheived when the frangable bulb is exposed to an ambient temperature greater than the rupture point.which is generally 141 degrees within the sauna system. Once the bulb has ruptured the sudden drop in pressure within the monitored pipework will cause the pump to run and only the affect nozzle will discharge the watermist. On activation the fire alarm will sound and where applicable the fuel supply will be cut to any protected equipment.  

The conversion to steam immediately cools the fire and surrounding surfaces smothering and extinguishing the fire in seconds.

Additionally the fine water droplets bind with the smoke particles generated by the fire and prevent the smoke spreading away from the immediate fire zone. 

NEED US URGENTLY?

For more information contact us on 01953 469237 or email enquiries@fireworks-ltd.com

 

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