The pumps operated at 650-800 psi at low flow through gun type nozzles. Useful on indirect attack situations, there were weaknesses in other applications. Overtaken by volume pumps and larger lines, they slowly faded from use on structure fires. The parent company, FMC Fire Apparatus, ultimately ceased operations in 1990 following a failed expansion into ladder trucks.
Today, the technology is rearing its head again in the form of ultra-high pressure. Pumps for low flow 18-22 gpm handlines delivering water at 1100-1400 psi are now being manufactured by HMA Fire. As with many “new” technologies, it is being suggested for a variety of applications from ARFF to woodland, and yes, even structural fires. Where it will go is unclear, but the fire service trip around the circle is virtually complete.
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