What does the acronym "FVC" stand for in plumbing terminology?

The acronym "FVC" in plumbing terminology stands for "Fixture Vent Connection." This term refers to the necessary ventilation that allows fixtures to operate effectively without creating negative pressure that could siphon water from traps, potentially leading to sewer gas entering the living space. The proper installation of fixture vent connections is crucial for the maintenance of system integrity, ensuring that wastewater can flow freely and that traps maintain a water seal.

Understanding this term is important for plumbing professionals as it relates to the overall health of plumbing systems, including ensuring proper drainage and venting, which prevents odors and protects public health. By knowing the role of a fixture vent connection, plumbers can design and install systems that comply with plumbing codes and standards, ultimately enhancing the reliability and safety of plumbing installations.