• Where hydrants are located on a private water system and hose lines are intended to be used directly from the hydrants they should be so located as to keep hose lines short, preferably not over 75m.
• For average conditions hydrants are normally placed 12,2 m from the building to be protected. Where this is not possible, they are set where the chance of injury by falling walls is small and where fire-fighters are not likely to be driven away by smoke or heat.
• In crowded industrial yards, hydrants can usually be placed beside low buildings, near substantial stair towers or at corners formed by masonry walls that are not likely to fall.
• Hydrants located in areas subject to heavy traffic need protection.
• Hydrants should be set plumb with outlets about 0, 46 m above ground and 0, 46 m above the floor in hose houses.
• Hydrants spaced not more than 60 m apart must completely surround the property to be protected.
• Additional hydrants must be installed in such a way as to ensure that all parts of the property protected are within 90m of a large bore nozzle attached to not more than 45m of hose.
• Hydrant valves must match the local fire brigade hose couplings, but must in no case be smaller than 63.5mm internal diameter.
• Each hydrant valve must be supplied with at least 45 m of approved hose of not less than 63, 5 mm internal diameter, in two or more lengths of not less than 15 m each and with one branch pipe and nozzle 15,9 mm or larger in diameter. (Adjustable nozzles giving either spray or jets are recommended.)
Three types: White Synthetic Fibre, Red PVC coated and Yellow PVC coated.
FIRE EXTINGUISHER POWDERS
DTS Development and Fire Extinguisher Services, range of dry chemical powders are suitable for A, B or C class fires or a combination of ABC class fires.
Dry chemical powders have been developed over a period of thirty years and can be supplied as Alpha Dynaflo, an ultra-high performance product or in various grades down to our AphaMegaflo 34 – 40% which carries a 2A-2B rating.
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