I believe there are two general construction types. One uses a bladder to separate the air and water but does not separate the water from the metal. So that type is on the shorter inspection cycle.
Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Apr 14, 2014, at 9:12 AM, Steve Leyton <[email protected]> wrote: > I would say a pressure tank bladder is a material that resists corrosion, > so 5 years > IMHO. > > SL _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
