Socket Weld Flange（SW）
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English IntroductionSocket Weld Flange (SW) is a flange with a socket structure, which inserts the pipe into the flange socket and fixes it by fillet welding. It has the advantages of compact structure, small volume, reliable sealing and strong pressure resistance, and is suitable for small-diameter, high-pressure pipeline systems. As a high-performance flange type for small-diameter pipelines, it is widely used in high-pressure, high-precision industrial pipeline systems, perfectly meeting the needs of international trade and high-end small-diameter project applications.Core AdvantagesCompact Structure: Small volume, light weight, suitable for narrow installation spaces and small-diameter pipeline systems.Reliable Sealing & High Pressure Resistance: The socket structure and fillet welding ensure good sealing performance and strong pressure resistance, suitable for high-pressure working conditions.Smooth Internal Flow: The pipe is inserted into the socket, with smooth internal transition, reducing fluid resistance and avoiding medium accumulation.Easy Installation: The socket design is convenient for pipe alignment and welding, improving construction efficiency and welding quality.Global Standard Compliance: Strictly manufactured in accordance with international and national standards, fully adapting to global market requirements.Key SpecificationsStandards: International Standard (ISO 7005), American Standard (ASME B16.5), German Standard (DIN 2501), European Standard (EN 1092-1), Japanese Standard (JIS B2220), Chinese Standard (GB/T 9117, HG/T 20592, HG/T 20615)Materials: Carbon steel (A105, 20#), stainless steel (304, 316L), alloy steel (16Mn, 15CrMo, F11) — customizable according to medium and working conditions.Pressure Ratings: Class 300, 600, 900, 1500, 2500; PN25, PN40, PN63, PN100Nominal Diameter: DN15 ~ DN100 (NPS 1/2" ~ 4")Sealing Surface Types: RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)Working Temperature: -40℃ ~ 550℃ (customizable for high-temperature special requirements)ApplicationsWidely applied in petroleum, petrochemical, natural gas, power generation, chemical engineering, nuclear energy and other high-end industries. It is an ideal flange connection solution for small-diameter, high-pressure, high-precision pipeline systems, especially suitable for pipeline systems with high requirements for fluid flow and sealing, and is exported to countries and regions around the world, winning wide recognition from global customers.As a professional manufacturer based in Cangzhou Pipeline Equipment Manufacturing Base, Hebei, China, we provide customized services for Socket Weld Flanges according to customer drawings, specifications, materials and standards, and offer one-stop supply and after-sales support to meet the personalized needs of global projects.
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Main products: WN, SO, PL, BL flanges, elbows, tees, reducers, caps. Materials: carbon steel, stainless steel, alloy steel. Standards: ASME, ANSI, EN, JIS, DIN. Export to global pipeline projects. Contact Us