.As part of the Loss Prevention Council (LPC) Rules for Automatic Sprinkler Installations 2015 incorporating BSEN12845, after 25 years the pipes and the sprinklers should be inspected.
It is a requirement of sprinkler systems designed in accordance with the LPC Rules for automatic sprinkler installations 2015 incorporating BS EN 12845, that after 25 years a sample number of sprinkler heads should be removed and tested by an independent, third party testing laboratory.
Below is an extract from the document to provide you with an understanding of the checks which are required.
“The pipework should be thoroughly flushed out and hydro-statically tested to a pressure equal to the maximum static pressure or 12 bar, whichever is the higher.”
“The pipework should be internally and externally inspected. At least one metre length of range pipe should be inspected per 100 sprinklers. Two pipe sections of at least one metre length of each pipe diameter should be inspected.”
“All defects which might adversely affect the performance of the system should be eliminated.”
“In the case of wet pipe systems at least one sprinkler installation per building should be checked. If several wet control valve sets are installed in one building only 10% need be inspected.”
“A number of sprinklers should be removed and inspected. Table K.1 specifies the scope of sampling as a function of the total number of sprinklers installed.”