What is the maximum horizontal spacing allowed to support copper or copper alloy pipe?

The maximum horizontal spacing allowed to support copper or copper alloy pipe is 12 feet. This requirement is based on the need to ensure adequate support to prevent sagging and bending, which could lead to damage or leakage over time. Proper support helps maintain the integrity of the piping system, ensuring it functions efficiently and safely.

Spacing piping every 12 feet is considered sufficient to handle the weight of the pipe and any fluid it may carry, while also allowing for thermal expansion and contraction. Without this guideline, longer unsupported spans could result in increased stress on the joints and connections, elevating the potential for failure. Thus, the specification of 12 feet reflects both practical and safety considerations in plumbing design.