PEX pipe fittings are pipe connection and distribution components made of cross-linked polyethylene (PEX) as the base material, commonly used in building water supply and heating systems.

Materials and Manufacturing Process: The core material of PEX pipe fittings is high-density polyethylene (HDPE). Through a cross-linking process, the linear molecular structure is transformed into a three-dimensional network structure, thereby improving heat resistance, creep resistance, and chemical stability.