Copper sealing rings and flat gaskets designed to DIN 7603A standards for reliable flange sealing. The set includes M16 to M19 size rings, with a representative M16x20x1.5 dimension for the M16 item. Sold in practical pack sizes of 20 or 50 pieces (and available in larger quantities in some listings up to 100 pieces). Suitable for standard DIN flange connections and a range of industrial sealing applications. Key benefits Reliable, gas and liquidtight seals in flanged joints, helping prevent leaks and downtime. Copper material offers good malleability, allowing the ring to conform to flange surface irregularities for a uniform seal. DIN 7603A compatibility ensures alignment with common flange standards and installation practices. thermal conductivity and corrosion resistance contribute to durability in demanding environments. Simple installation and replacement in maintenance or installations; does not require exotic tooling. Costefficient solution for routine flange sealing needs, with multiple sizes available in standard pack options. Key attributes Material: Copper, flat gasket type. Function: Sealing ring for flange connections (gasket seal). Sizes included: M16, M17, M18, M19 (example dimension specified for M16: M16x20x1.5; bore x outer diameter x thickness). Dimensional note: The M16 variant is specified as M16x20x1.5 (bore 16 mm, outer diameter 20 mm, thickness 1.5 mm); other sizes follow the same DIN 7603A flat gasket concept. Standard: DIN 7603A compliant flat gasket. Pack options: Commonly 20 or 50 pieces per pack; some listings offer up to 100 pieces. Compatibility: Suitable for standard flange assemblies that require DIN 7603A copper gaskets. Applications: Personalizable to piping, valve, and equipment flange joints within the DIN 7603A framework. Applications and use cases Industrial piping systems: worn gaskets in flange joints on water, steam, or gas lines that use DINstandard flanges, ensuring a tight, reliable seal. Maintenance and repairs: Stock for quick replacement during equipment servicing or pipework upgrades to restore leak operation. Equipment assembly: Seal flange connections on pumps, compressors, heat exchangers, and similar equipment where DIN 7603A flat copper gaskets are specified. installation and handling notes Ensure flange faces are clean and of debris before installation. Select the correct size to match the flange bore and gasket seat for a proper seal. Carefully tighten bolts to the appropriate torque as recommended by the equipment manufacturer or flange standard practices to achieve proper gasket compression. Inspect for flatness and uniform compression after installation; if gasket faces are damaged or warped. With these copper sealing rings, you gain a standardcompatible, durable gasket option that supports efficient maintenance and dependable flange sealing across a range of common industrial applications.