JIS B2220 Flange
JIS B2220 Flange
JIS B2220 is a Japanese Industrial Standard (JIS) that specifies steel pipe flanges for various pressure ratings and applications. These flanges are commonly used in piping systems in Japan and other regions that follow JIS standards.
Key Features
- Pressure Classes: Available in various pressure classes, including 5K, 10K, 16K, 20K, 30K, and 40K, to suit different pressure requirements.
- Materials: Typically made from carbon steel, stainless steel, or other suitable materials depending on the application.
- Types: Includes various types such as slip-on flanges, weld neck flanges, blind flanges, and threaded flanges.
- Dimensions: Dimensions are specified in the JIS B2220 standard, ensuring compatibility and interchangeability.
- Applications: Widely used in various industries, including oil and gas, petrochemical, chemical, and power generation.
Types of JIS B2220 Flanges
- Slip-on Flange (SO)
- Weld Neck Flange (WN)
- Blind Flange (BL)
- Socket Weld Flange (SW)
- Threaded Flange (TH)
- Lap Joint Flange (LJ)
- Plate Flange (PL)
JIS B2220 Welding Neck Flange
JIS B2220 Threaded Flange
JIS B2220 LAP Joint Flange
JIS B2220 Slip-on Flange
JIS B2220 Blind Flange
SOP Type Flange
BL Type Flange
SOH Type Flange
High-Temperature Applications
- Materials:
- Carbon Steel: ASTM A105, A350 LF2
- Alloy Steel: ASTM A182 F11, F22
- Stainless Steel: ASTM A182 F304, F316, F321
- Temperature Range: Suitable for temperatures up to 425°C (Carbon Steel) and 600°C (Alloy/SS Steel).
- Pressure Ratings: 5K, 10K, 16K, 20K, and 30K.
Low-Temperature Applications:
- Materials:
- Carbon Steel: ASTM A350 LF2 (Low Temperature)
- Stainless Steel: ASTM A182 F304L, F316L
- Temperature Range: Down to -45°C for Carbon Steel and -196°C for Stainless Steel.
- Pressure Ratings: 5K, 10K, 16K.
Materials:
JIS B2220 flanges can be manufactured using various materials to meet specific application needs:
- Carbon Steel:
- Grades: SS400, S235JR, S275JR
- Stainless Steel:
- Grades: 304, 304L, 316, 316L, 310S
- Alloy Steel:
- Grades: F11, F22, F91
- Duplex & Super Duplex Steel:
- Grades: UNS S31803, S32205, S32750
- Other Alloys:
- Nickel-based alloys, Titanium, and Copper-Nickel alloys.
Flange Face Types:
JIS B2220 flanges are available with various flange face types to ensure compatibility and seal integrity:
- Flat Face (FF): Ideal for low-pressure applications.
- Raised Face (RF): Used in medium to high pressure applications.
- Ring Type Joints (RTJs): Which is suitable for high-pressure and high-temperature conditions.
- Tongue & Groove (T&G): Provides a self-aligning and tight seal.
- Male & Female (M&F): Used in applications requiring precise alignment.
