What is the minimum spacing required for hangers on horizontal PEX pipes?

The minimum spacing required for hangers on horizontal PEX pipes is indeed 32 inches. This requirement is specified to ensure proper support and stability of the piping system. When PEX pipes are not adequately supported, they may sag or experience stress, which can lead to potential leaks or damage over time.

The 32-inch spacing allows for enough support to accommodate thermal expansion and contraction that PEX pipes undergo due to temperature changes. Furthermore, this spacing helps to prevent the pipes from moving excessively during installation or use, thereby maintaining the integrity of the plumbing system.

Maintaining the specified hanger spacing is crucial for compliance with the Massachusetts Plumbing Code, ensuring that installations are performed correctly and safely.