Which term defines pipe materials that are not metals?

Which term defines pipe materials that are not metals?

• A. Nonmetallic Pipe
• B. Automatic Sprinkler Installations
• C. Gauge Pressure
• D. ASME B16.4

Answer: (A)

Nonmetallic pipe is the term for pipe materials that are not metals. This category includes plastics such as PVC, CPVC, ABS, and polyethylene, which are often chosen for corrosion resistance, lighter weight, and lower cost compared to metal piping. In residential sprinkler systems, recognizing nonmetallic pipe helps distinguish it from metallic piping like steel or copper and signals relevant installation and approval considerations under the applicable NFPA 13R provisions. The other options don’t define pipe materials: automatic sprinkler installations describe the system, gauge pressure is a pressure measurement, and ASME B16.4 is a flange standard—not a material type.

Nonmetallic pipe is the term for pipe materials that are not metals. This category includes plastics such as PVC, CPVC, ABS, and polyethylene, which are often chosen for corrosion resistance, lighter weight, and lower cost compared to metal piping. In residential sprinkler systems, recognizing nonmetallic pipe helps distinguish it from metallic piping like steel or copper and signals relevant installation and approval considerations under the applicable NFPA 13R provisions. The other options don’t define pipe materials: automatic sprinkler installations describe the system, gauge pressure is a pressure measurement, and ASME B16.4 is a flange standard—not a material type.