STEEL/PP BACKING RING, PN16 BORET

PP-Coated flange drilled according to ISO/DIN is a robust pipe flange made of steel or another supporting material, coated with polypropylene (PP) to ensure excellent chemical resistance and protection against corrosion. The corrosion-resistant PP lining makes the flange ideal for use in demanding and aggressive environments where the media may be corrosive – such as in the chemical processing industry, wastewater treatment plants, and water treatment systems.

The flange is PN16 drilled and complies with international ISO (International Organization for Standardization) and DIN (Deutsches Institut für Normung) standards. This means that the number, positioning, and dimensions of the bolt holes are defined according to precise technical norms, ensuring full compatibility with standardized components in piping installations. ISO/DIN standards are widely used across Europe and are common in industrial systems to ensure uniformity and easy interchangeability of parts.

This type of flange is specifically designed to fit with butt-weld and electrofusion (EF) stub flanges made of PE (polyethylene), PP-H (polypropylene homopolymer), and similar thermoplastic materials. This makes the solution both flexible and reliable in installations where plastic materials are used to transport aggressive or temperature-sensitive media.