A low pressure water mist system offers an extremely efficient use of water in the fire protection of buildings and car parks.
Life, property, assets and the environment are thus safely protected around the clock. Installing low pressure water mist can aid in achieving compliance from building control or other authorities having jurisdiction. Fire risk assessors and insurers have also recognised it’s effectiveness by granting premium discounts.
Low Pressure Watermist uses up to 85% less water than a classic sprinkler system. This level of efficiency can usually only be achieved using expensive, high pressure extinguishing systems that typically work with operating pressures in the range of 40 to 120 Bar. Low Pressure Water Mist achieves comparable results with a typical maximum operating pressure of 16 Bar.
The are many advantages of water mist’s reduced water requirement are: potentially less water damage, a smaller pump room compared with a traditional sprinkler system, smaller diameter pipes and a reduction in construction, civil emgineering costs, system space requirements and installation time.
Low Pressure Water Mist has been documented and tested through extensive fire and extinguishing tests and is approved and certified by the German VdS (Schadenverhütung GmbH) for the protection of LH & OH Hazards.
The Low Pressure Watermist technology utilises the physical properties of the water more efficiently than a classic water extinguishing systems. The water is distributed through special nozzles as a very fine spray under increased operating pressures. The result is a larger total surface area of the extinguishing water, allowing it to absorb the heat and evaporate rapidly. The cooling and smothering effect results in extremely effective fire suppression using a minimum amount of extinguishing water.
In its design and function LP Water Mist is similar to a classic sprinkler system. The system is divided into one or more extinguishing zones, the corresponding selector valve sets and the watermist pump room.
Low Pressure Water Mist sprinkler systems are also certified to protect multi storey car parks and underground garages exposed to frost by creating a dry pipe system using an dry selector valve set.
In an operational fire condition the pipe work is charged with water in the wet zones which are not at risk of freezing and compressed air in the dry zones exposed to potential freezing conditions. In the event of a fire, only the Low Pressure Water Mist sprinklers located in the immediate vicinity of the fire source are activated.