Steel Weld Neck Flange DN20 PN25 S235JRG2 EN 1092-1

Steel Weld Neck Flange collar DN20 PN25 of steel St20 (C20 / S235JRG2) is designed for reliable attachment of valves and equipment to pipelines. It features a 20 mm nominal bore and withstands nominal pressure up to 25 bar, demonstrating high resistance to loads, corrosion, and temperature fluctuations.

Manufacturing of these steel St20 (C20 / S235JRG2) collar flanges adheres to GOST 12820-80 and EN1092-1 standards, with quality control implemented throughout all production stages, from raw material selection to final hydro tests. Modern hot forging and forging technologies ensure optimal metal structure and product durability for high-pressure systems.

These flanges are suitable for various applications, including the chemical industry (with moderately aggressive media), industrial water supply, and compressed air systems. They operate effectively within a temperature range of -40°C to +450°C, withstanding increased loads. The use of paronite or spiral wound gaskets is recommended for enhanced sealing performance.

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