Fire safety valves

#138 – Fire Safety Valve Pressure Ratings: WOG vs WSP vs. PSI

Fire safety valve pressure ratings matter when choosing a valve for fire sprinkler and standpipe systems. QRFS reviews the differences between more than ten common terms manufacturers use to describe valves’ pressure ratings, including WOG (Water, Oil, Gas), WSP (Working Steam Pressure), and PSI (Pounds per Square Inch).

Old Fire Sprinkler

#131 – Which Fire Sprinkler Do I Have? And How Do I Replace It?

Fire sprinkler identification numbers have made identifying and replacing fire sprinklers easier, but a confusing variety of old sprinklers remain in service. QRFS explains how to determine which fire sprinkler you have, plus replace one that isn’t commercially available.