Steel Weld Neck Flange DN40 PN40 S235JRG2 EN 1092-1

Steel Weld Neck Flange DN40 PN40 is a key pipeline element, providing a highly reliable and tight connection. This fitting, with a 40 mm nominal bore and designed for nominal pressures up to 40 bar, is ideal for systems demanding high strength and durability, including industrial, municipal, and energy applications.

These collar flanges are manufactured from St20 (C20 / S235JRG2) steel according to GOST 12820-80 and EN1092-1 standards using advanced plasma-arc and laser processing technologies. This ensures high geometric accuracy and a quality sealing surface, critical for reliable pipeline connections.

Suitable for power and heat supply pipelines, these flanges operate within a wide temperature range of -40°C to +450°C. Installation involves collar welding, bolted fastening with tightening control, and spiral wound gaskets (with protruding or flat surfaces) for a durable, hermetic seal.

Purchase Steel Weld Neck Flange DN40 PN40 at competitive prices with self-pickup available from warehouses in Lodz, Warsaw, Poznan, Krakow, Sofia, Varna, and Plovdiv. Delivery for orders weighing one ton or more is available across Poland, Bulgaria and other EU countries. Additional services include bending and cutting of rolled products.