Pipe & Pipe Fittings

About pipe & pipe fittings

Pipe and pipe fittings are essential components for fluid and gas conveyance systems across industrial, commercial, and residential applications. Pipes are typically defined by their nominal pipe size (NPS), which approximates the interior diameter, and schedule (SCH), indicating wall thickness and thus pressure rating. Common pipe materials include black iron (ASTM A53, A106), galvanized steel (zinc-coated for corrosion resistance), stainless steel (304, 316 for enhanced corrosion resistance and hygiene), and PVC (polyvinyl chloride, often Schedule 40 or 80, for non-metallic applications). Fittings, such as elbows, tees, couplings, and reducers, alter the direction or diameter of the piping run. These are available in various connection types, including threaded (NPT for tapered threads, BSP for parallel threads), socket weld, butt weld, and solvent weld (for PVC). Threaded fittings are specified by their NPS and thread form. Pressure ratings (e.g., Class 150, Class 300, or specific PSI values) and temperature limits are critical selection criteria, ensuring compatibility with system operating conditions. Material compatibility with the conveyed medium is paramount to prevent degradation or contamination.