Greetings, Were doing an MRI room for Stanford and I wanted to know if anyone knows where to find info on using cpvc in a preaction system. The 2007 handbook says cpvc can be used with cpvc if low air pressure, timing requirements and manufacture requirements are met. Blazemaster, Havel and Spears all say not to use cpvc in a preaction system. Are the any other cpvc manufactures? The problem is that to use copper the pipe needs to be brazed instead of soldered and the extra heat is most likely going to ruin their lead shielding. The lead shielding is a cloth like material similar to wall paper. I can have an apprentice stand around with some kind of heat shield but it would be safer and probably better if we could use cpvc. Its 2 rooms with 6 heads in each room. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
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