Fire Hydrant

A fire hydrant is a source of water provided in most urban, suburban and rural areas with municipal water service to enable firefighters to tap into the municipal water supply to assist in extinguishing a fire.

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Useful Life

A fire hydrant may have a useful life in the vicinity of 30 years.

Types of Hydrants

Fire Flow Requirements

Chapter 6 of the Planning Guidelines for Water Supply and Sewerage Table 5.5 (see below) states that in residential areas, hydrants should be capable of delivering 15 l/s for two hours at a pressure of at least 12m, at all times.

Category Fireflow Requirement Number & Duration
Residential (ie and area comprising of predominantly residential dwellings of a maximum of 3 storeys) 15 l/s for 2 hours 1 @ 2 hours
Commercial (ie an area comprising of shop and office accomodation of a maximum of 3 storeys) 30 l/s for 4 hours - For schemes serving a population of less than 1000 a fireflow of 15 l/s for 2 hours should be satisfactory except where a special hazard or risk development exists.t 1 @ 4 hours
High risk (ie a development where there is a probability of a fire occurring or there is a high cost of resultant damage (personal injury or property) To be determined Adopt a special hazard or risk fire
Residual pressure is to be 12m minimum at hydrant at all times.

References & External Links

  1. Planning Guidelines for Water Supply and Sewerage
  2. Wikipedia Article
  3. Answers.Com
  4. Google Search
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