Hubbed Slip-On Flanges according to EN 1092-1 PN16 are circular flanges designed to slide over the pipe and are welded in place to ensure a strong and leak-resistant joint. The PN16 rating indicates a pressure capacity of up to 16 bar, making these flanges suitable for medium-pressure piping systems. The hub provides extra reinforcement and proper alignment during installation. These flanges conform to the EN 1092-1 standard, which defines the dimensions, tolerances, and technical specifications for European steel flanges. They are widely used in water supply, process piping, and industrial systems requiring reliable sealing and strength.