Slip-on Flange（SO）
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Slip On Flange (SO) is a widely used flange type with a sleeve structure, which is sleeved on the pipe and fixed by fillet welding. It has the advantages of simple structure, easy alignment, low cost and convenient installation, and is suitable for medium and low pressure pipeline systems. As a versatile flange type, it is widely used in various industrial and civil pipeline systems, perfectly meeting the needs of international trade and general project applications.Core AdvantagesEasy Installation & Alignment: The sleeve structure allows the flange to be easily sleeved on the pipe, convenient for alignment and welding, improving construction efficiency.Cost-Effective: Simple manufacturing process, lower cost than Weld Neck Flanges, suitable for medium and low pressure scenarios with large demand.Good Sealing Performance: Adopts precision machining of the sealing surface, combined with gaskets, to ensure reliable sealing under medium and low pressure conditions.Wide Compatibility: Suitable for medium and low pressure, normal-temperature and medium-temperature pipeline systems, compatible with various media such as water, gas, oil and general chemicals.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 9116, HG/T 20592, HG/T 20615)Materials: Carbon steel (A105, 20#, Q235B), stainless steel (304, 316L), alloy steel (16Mn, 15CrMo) — customizable according to medium and working conditions.Pressure Ratings: Class 150, 300, 600; PN10, PN16, PN25, PN40Nominal Diameter: DN15 ~ DN2000 (NPS 1/2" ~ 80")Sealing Surface Types: RF (Raised Face), FF (Flat Face), MFM (Male-Female Face)Working Temperature: -40℃ ~ 450℃ (customizable for special requirements)ApplicationsWidely applied in petroleum, petrochemical (low and medium pressure), natural gas (low pressure), water supply and drainage, HVAC, chemical engineering, food and beverage and other industries. It is an ideal flange connection solution for medium and low pressure, normal-temperature and medium-temperature pipeline systems, 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 Slip On 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