What is a Puddle Flange? Its Applications and Advantages (PDF)

A puddle flange, also known as a floor flange or a plinth flange, is a specialized piping and plumbing fitting designed to prevent water (or other fluid) penetration through floor or wall openings where pipes pass through. It is typically a disc-shaped or ring-like component made from durable materials such as carbon steel, PVC, stainless steel, or rubber. Puddle flanges are available in various sizes and designs to accommodate different pipe diameters and applications.