This British Standard specifies design requirements for fusible plugs for
use in steam boilers and compressed air installations.
Guidance on installation is included in Annex A.
NOTE Fusible plugs do not provide protection against excessive pressure,
i.e. they do not remove the requirement for a safety device(s).
BS 1123:2006 Referenced Document
BS 21 Specification for Pipe threads for tubes and fittings where pressure - tight joints are made on the threads (metric dimensions)
BS 1123:2006 history
0000 BS 1123:2006(2012)
2006BS 1123:2006 Fusible plugs for steam boilers and compressed air applications - Specification
1987BS 1123-1:1987 Safety valves, gauges and fusible plugs for compressed air or inert gas installations - Code of practice for installation