Steel Weld Neck Flange DN350 PN6 S235JRG2 EN 1092-1

Steel Weld Neck Flange DN350 PN6, with its tapered collar, creates a strong butt-welded connection to the pipe. The 350 mm nominal bore and 6 bar pressure rating make it suitable for high-pressure and critical lines in industrial and energy facilities.

These collar flanges are manufactured from St20 (C20 / S235JRG2) steel according to GOST 12820-80 and EN1092-1. Quality control is implemented throughout all production stages, from raw material selection to final hydro testing. Modern hot forging and forging technologies ensure optimal metal structure and product durability for high-pressure systems.

Suitable for ventilation and air supply systems requiring hygienic standards and vibration resistance, these flanges operate at temperatures from -30 to +300 °C. Installation involves collar welding and a bolted connection with uniform tightening, allowing for perfect alignment, repeated dismantling, and maintained tightness.

Customers can purchase the Steel Weld Neck Flange DN350 PN6 wholesale and retail with self-pickup available from our warehouses in Sofia, Varna, Plovdiv, Krakow, Warsaw, Poznan, and Lodz. Wholesale discounts are available. Delivery is offered throughout Europe, and for orders over one ton, to Zary, Glogów, Legnica, and Opole.