Which standard governs piping, valves, pipe fittings, and hangers, including corrosion-protection coatings, for foam-water systems?

• A. NFPA 13
• B. NFPA 25
• C. NFPA 70
• D. NFPA 101

Answer: (A)

NFPA 13 sets the rules for installing water-based sprinkler systems, including how piping, valves, pipe fittings, and hangers are designed, supported, and protected, as well as requirements for corrosion-protection coatings on metal components. In foam-water systems, the basic infrastructure—piping and its supports—follows NFPA 13’s installation requirements, while NFPA 16 handles the foam-specific aspects of design and equipment. The other standards don’t cover the installation details of piping and coatings for foam-water systems: NFPA 25 is about inspection and maintenance, NFPA 70 is the electrical code, and NFPA 101 is the Life Safety Code.