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Recent content by mark Murphy

  1. M

    Schedule 40 vs 10 for pre-action system

    n NFPA 13 (2022), steel pipe schedules are governed by Table 6.2.3.1, which specifies minimum wall thickness based on pipe size. Schedule 10 is permitted only if it meets the table’s minimum thickness for the given size (e.g., allowed for larger diameters like 8"+ where Schedule 10 meets/exceeds...
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