Steel Weld Neck Flange DN400 PN6 S235JRG2 EN 1092-1

Steel Weld Neck Flange DN400 PN6 is an indispensable component for creating split connections on pipelines, especially under high loads and with aggressive media. With an internal diameter of 400 mm and designed for a nominal pressure of 6 bar, this flange ensures stable operation in demanding industrial systems and transportation of various media.

Production of these weld neck flanges involves multi-stage quality control, from incoming inspection of the chemical composition of St20 steel (C20 / S235JRG2) to hydro-testing. All stages comply with GOST 12820-80 and EN1092-1, guaranteeing reliability and durability for high-pressure pipelines.

These flanges are ideal for strong, tight connections in general-purpose pipelines: housing and communal services, water supply, heating systems, and the food industry. They operate in temperatures ranging from -30°C to +300°C. Paronite, rubber, or elastomeric gaskets conforming to GOST (versions B, C) are recommended for reliable and easy installation.

Purchase Steel Weld Neck Flange DN400 PN6 with pickup available from warehouses in Lodz, Krakow, Poznan, Warsaw, Sofia, Varna, and Plovdiv. Delivery is available throughout Europe, including Germany, Norway, Denmark, and Moldova. Rolled product bending and cutting services are also available. Submit a purchase request on the site.