Is there anything prohibiting the use of mechanical tees (strap-on tees, hookers are some of the other names used) instead of welded outlets on branch lines for new construction?
I've got an installation where the contractor used mechanical tees for the upright sprinklers instead of welded outlets. I thought I had seen in NFPA 13 where these were not permitted for new construction but only for modifications to existing systems. I've hunted NFPA 13 but can't seem to find any such limitation. Craig L. Prahl Fire Protection Group Lead/SME CH2M 200 Verdae Blvd. Greenville, SC 29607 Direct - 864.920.7540 Fax - 864.920.7129 CH2MHILL Extension 77540 [email protected]
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