Fire extinguisher CO types have the test information stamped on the cylinder, all other types get a sticker on the back of the cylinder. Once dry, the units are recharged. Unlike the UK, the US does not rebuild extinguishers and replace valves at specific intervals unless parts are found to be defective, with the exception of halon. Halon types are often given new o-rings and valve stems at every internal maintenance to minimize any leakage potential. OEM equipment must be used for replacement parts for the extinguisher to maintain its UL rating. If parts are unavailable, replacement is recommended, keep in mind
Chubb Fire fighting equipment. The name Pyrene was epitomised by their famous 'pump' extinguisher which was installed on public transport, commercial and private vehicles throughout the western world. 1907 A Scottish engineer unable to get backing in the United Kingdom took his idea for a fire extinguisher to the United States. He set up in New York, and eventually became known as the Pyrene Company of Delaware. 1914 The Pyrene Company Limited began in the United Kingdom, when Wallace B. Phillips, an American set up in Great Queen Street, London, selling 'pump' extinguishers. 1918-20 The company moved to Grosvenor Gardens, London in