Have you ran into the issue of chemical compatibility between the cpvc and steel pipe? I was under the impression that you could no longer mix and match cpvc with black steel pipe.
Per the UFC 4-010-05, 3-5.8.2 - "Sprinkler pipe shall be provided with a UL Listed dielectric union inside the SCIF perimeter adjacent to the penetration, or ground the pipe within 6" of the perimeter penetration using a no. 4 wire to the building ground."
Does anyone have a recommendation for...
Does anyone have any recommendations for how to penetrate a SCIF wall for a govt. project? Will a dielectric union be sufficeint, and are there good products for large pipe, 4" & larger?
