Since 1948, Flowline Fittings has been a New Castle, Pennsylvania manufacturer known for supplying mission-critical components to the U.S. Navy and other demanding industries. Its 100,000-square-foot U.S. facility supports custom pipe fittings and forgings for nuclear, defense, and industrial applications, with production backed by ISO 9001:2015 certification and Level 1 SubSafe approval.
ISO 9001:2015
certification