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Explore JIS B2220 20K flange dimensions with a 20 kgf/cm² (2.0 MPa) pressure rating. Available in sizes from 10A (½”) to 1500A (60”). Check
JIS B2220 Flange Standard – Dimensions, Types & Applications
The JIS B2220 flange is a widely used Japanese Industrial Standard flange designed for steel pipe connections across multiple industries. Known for its precise JIS B2220 flange dimensions, durability, and pressure handling, this flange is applied in oil and gas, chemical, petrochemical, power generation, and water treatment plants. The JIS B2220 flange standard ensures compatibility, interchangeability, and safety across piping systems in Japan and globally.
Key Features of JIS B2220 Flange
Pressure Ratings: Available in 5K, 10K, 16K, 20K, 30K, and 40K to suit different requirements. The popular flange JIS B2220 10K is frequently used in medium-pressure pipelines.
Materials: Manufactured from carbon steel (SS400, ASTM A105, A350 LF2), stainless steel (304, 304L, 316, 316L, 310S), alloy steel (F11, F22, F91), and duplex/super duplex steels like UNS S31803 and S32750.
Types: Slip-On (SO), Weld Neck (WN), Blind (BL), Socket Weld (SW), Threaded (TH), and Lap Joint (LJ).
Face Types: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Tongue & Groove (T&G), and Male & Female (M&F).
Temperature & Pressure Suitability
High-Temperature Applications: Carbon steel up to 425°C, stainless and alloy steels up to 600°C, with pressure classes 5K–30K.
Low-Temperature Applications: Carbon steel (down to -45°C) and stainless steel (down to -196°C), commonly in cryogenic systems.
Applications of JIS B2220 Flanges
Oil & Gas Pipelines
Petrochemical and Chemical Processing
Power Generation Plants
Marine and Offshore Projects
Water Treatment Systems
Advantages of JIS B2220 Flange Standard
Accurate JIS B2220 flange dimensions ensure easy assembly.
Wide material range for various operating conditions.
Strong sealing performance with multiple face types.
Global recognition in industries that adopt Japanese standards.
Conclusion
The JIS B2220 flange standard plays a vital role in modern piping systems, offering reliability, safety, and adaptability across diverse industrial applications. Whether for high-pressure refineries or low-temperature cryogenic plants, flange JIS B2220 10K and other classes provide trusted solutions for engineers worldwide.
