Steel Weld Neck Flange DN400 PN40 S235JRG2 EN 1092-1

Steel Weld Neck Flange DN400 PN40 effectively aligns and centers pipes, ensuring uniform load distribution. Its 40 bar nominal pressure and 400 mm diameter guarantee piping system stability and reliability in municipal, industrial, and energy networks.

These collar flanges are manufactured from St20 (C20 / S235JRG2) steel according to GOST 12820-80 and EN1092-1 standards using hot forging, ensuring high strength and metal density. CNC machining achieves precise dimensions and surface roughness.

Suitable for power and heat supply pipelines, these flanges operate within a -40°C to +450°C temperature range. Installation involves collar welding, controlled bolt tightening, and spiral wound gaskets (protruding or flat) for a secure, leak-proof connection.

The company assists with order delivery (weighing one ton or more) throughout Europe, including Italy, Hungary, Romania, and Slovakia. Products can be purchased from Polish warehouses in Krakow, Warsaw, Lodz, and Poznan, with delivery available to any Polish location, including Jelenia Góra, Bolesławiec, and Wałbrzych. Pickup is also available from warehouses in Sofia, Varna, and Plovdiv, Bulgaria.