Clauses 3.1 and 8.5.11.1 of AS 2419.1-2005, and clauses 1.2 and 3.4 of AS 2419.2-2009 specify fire hydrant valves are to be fitted with hose connections compatible with the local fire brigade.
Clause 3.4 of AS 2419.2-2009 and clause 3.5 of AS 2419.3-2012 specify that Storz hose connections shall be manufactured in aluminium or copper alloy using forged processes.
Cast and semi-cast aluminium Storz hose connections have failed when connected hose has been pressurised. This presents a serious risk to the safety of firefighters and the public, and compromises the use of the fitting.