Stainless steel tongue-and-groove flanges and flange unions are intended for use in stainless steel piping systems that require joints for equipment servicing. Designed for compatibility with the company’s regulators, solenoid valves and ball valves, the EZWLD flanges and flange unions are compatible with Parker R/S, Hansen, Henry, York and Frick sizes. The flanges and flange unions avoid weld joints of ordinary steel flanges to stainless steel. The NPT flanges are created using a single-point threading process to ensure a clean, tight connection. Threads can engage to iron, steel, copper, brass or plastic NPT threaded pipe.