Domestic fire sprinkler systems

Many of the fatalities and injuries caused by domestic fires could be prevented by the installation of a domestic fire sprinkler system. 

Copper tube to EN 1057 is the ideal material to use for the pipework.  Compared to the other pipework materials, copper has a smaller outside diameter and low friction losses.  It requires relatively few supports, being light and easy to handle and joint, especially in confined spaces.  Its excellent reliability and durability ensures that copper systems have a long trouble-free service life.

A wet pipe installation must be used, so the system is constantly charged with water, preferably direct from the mains.  Sprinkler system pipework must be sized such that it will deliver not less than 60 l/min through any single sprinkler and 42 l/min through any two sprinklers operating simultaneously in a single room.


Wales - Sprinkler systems are to be fitted in all new and converted housing from 2016.  Fire sprinkler systems will be installed in all new houses built in Wales from 1st January 2016, the Welsh Government has announced. Welsh Government Sprinkler Pilot Study Final Report.

Further technical information on domestic sprinkler systems can be found in BS 9251 Sprinkler Systems for Residential and Domestic Occupancies – Code of Practice, published by British Standards Institution.

British Standard

  • BS 9251:2005 Sprinkler Systems for Residential and Domestic Occupancies - Code of Practice

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This design and installation book gives information on water supplies, systems components and materials, hydraulic calculations, pipework installation, system commissioning, maintenance and documentation. 1997. 24pp.