The 2009 IPC code requires hangers to be installed at every ______ feet for PVC piping.

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Study for the NOCTI Plumbing Test. Prepare with flashcards and multiple choice questions, each question comes with hints and explanations. Ensure your success on the exam!

Multiple Choice

The 2009 IPC code requires hangers to be installed at every ______ feet for PVC piping.

Explanation:
Regular, evenly spaced supports for PVC pipe keep the run straight and maintain the gravity-driven slope needed for drainage. PVC is lightweight and can flex or sag between supports, especially as water weight and temperature change. Placing hangers at four-foot intervals controls that movement, prevents bowing between supports, and protects joints from stress that could lead to leaks. This spacing helps ensure the pipe stays properly supported throughout the run, which is why the 2009 IPC specifies four feet for hangers on PVC piping. Near fittings or changes in direction you’ll still need closer support with appropriate clamps, but the standard interval is four feet for the straight runs.

Regular, evenly spaced supports for PVC pipe keep the run straight and maintain the gravity-driven slope needed for drainage. PVC is lightweight and can flex or sag between supports, especially as water weight and temperature change. Placing hangers at four-foot intervals controls that movement, prevents bowing between supports, and protects joints from stress that could lead to leaks. This spacing helps ensure the pipe stays properly supported throughout the run, which is why the 2009 IPC specifies four feet for hangers on PVC piping. Near fittings or changes in direction you’ll still need closer support with appropriate clamps, but the standard interval is four feet for the straight runs.

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