JIS B2220 10K Flange Specifications and Dimensions Overview

Understanding JIS B2220 10K Flange Dimensions

Flanges are critical components in piping systems, providing a method to connect pipes, valves, pumps, and other equipment. They allow for easy assembly and disassembly while ensuring a tight seal. Among the various flange standards used worldwide, the Japanese Industrial Standards (JIS) B2220 specification has gained prominence, especially within the context of Japanese industrial applications. This article delves into the details of JIS B2220 flanges, with a particular focus on the 10K pressure rating and its dimensions.

What is JIS B2220?

JIS B2220 is a standard that specifies the dimensions of flanges used in piping systems, particularly those that convey fluids at various pressures. The 10K notation refers to the nominal pressure rating of the flange, indicating its capacity to withstand a pressure of up to 10 kilograms per square centimeter (approximately 147 psi). This makes 10K flanges suitable for various applications, including water supply, gas transportation, and chemical processing systems.

Key Dimensions of JIS B2220 10K Flanges

Understanding the dimensions of flanges is crucial for ensuring compatibility between pipes and ensuring system integrity. The JIS B2220 10K flange dimensions include details such as the flange diameter, thickness, bolt hole spacing, and the number of bolt holes. Here are the key dimensions that define a JIS B2220 10K flange

1. Nominal Diameter (DN) The nominal diameter indicates the size of the flange. Common nominal sizes for JIS B2220 10K flanges range from 10 mm to 400 mm, with the specific diameter corresponding to the designated nominal size.

2. Flange Outside Diameter This measurement is crucial as it determines the overall size of the flange. For instance, a DN50 (2-inch) 10K flange typically has an outer diameter of 160 mm.

3. Flange Thickness The thickness of the flange is another important dimension that affects its strength and suitability for high-pressure applications. The typical thickness for a 10K flange ranges from 8 mm to 26 mm, depending on the nominal size.

4. Bolt Hole Diameter and Spacing JIS B2220 flanges have standardized bolt hole diameters, which are usually either 13 mm or 16 mm, depending on the flange size. The spacing between the bolt holes is also standardized, ensuring uniformity across similar flange sizes.

5. Number of Bolt Holes The number of bolt holes varies depending on the flange size but typically ranges from 4 to 12 bolts. For instance, a DN100 (4-inch) flange usually has 8 bolt holes.

6. Face Type JIS B2220 flanges come in various face types, including raised face, flat face, and others, impacting how they seal against pipe flanges and joints.

Applications of JIS B2220 10K Flanges

JIS B2220 10K flanges are widely used in various industries due to their reliability and standardized dimensions. They are commonly found in

- Water Treatment Plants For connecting pipes and treatment equipment. - Oil and Gas Industry In pipelines for transporting petroleum products. - Chemical Processing For connecting reactors, tanks, and other vessels. - HVAC Systems In heating, ventilation, and air conditioning applications.

Conclusion

In conclusion, JIS B2220 10K flanges play a crucial role in maintaining the efficiency and safety of piping systems used across many industries. Understanding their dimensions and characteristics ensures that engineers and technicians can choose the right flange for their specific applications, contributing to the integrity and longevity of piping systems. As industries continue to evolve and grow, standards like JIS B2220 will remain paramount, ensuring safe and reliable fluid transport solutions. For those involved in engineering or procurement, familiarity with these dimensions is essential in promoting best practices and standards compliance.