Created on 2024.12.25
Differences Between ISO 6164 and JIS B 2291 Standards: How to Choose the Right Flange?
Hydraulic flanges are critical components in industrial systems, providing secure and leak-proof connections. Among the most commonly used standards are ISO 6164 and JIS B 2291. While both are reliable, each serves distinct purposes and suits specific applications.
This article highlights the key differences between these two standards and offers guidance on how to choose the right flange for your hydraulic system.
Overview of ISO 6164 and JIS B 2291 Standards
ISO 6164 and JIS B 2291 define the design, dimensions, and specifications for hydraulic flanges.
ISO 6164:2001
Developed by the International Organization for Standardization (ISO).
Focuses on square flanges for high-pressure hydraulic systems (up to 400 bar).
• Widely used in Europe and internationally for heavy-duty applications.
JIS B 2291
A Japanese Industrial Standard (JIS) for square hydraulic flanges.
Designed for medium- to high-pressure systems (up to 300 bar).
Commonly used in Asia, especially in industries where JIS standards dominate.
ISO 6164 and JIS B 2291之间的主要区别在于连接尺寸和连接压力等级。ISO 6164标准适用于连接尺寸较小的液压管路，而JIS B 2291标准适用于连接尺寸较大的液压管路。ISO 6164标准的连接压力等级通常较低，而JIS B 2291标准的连接压力等级通常较高。
Aspect | ISO 6164:2001 - Hydraulic fluid power - Four-screw split flange connections - Connection dimensions and port allocation | JIS B 2291:2000 |
Pressure Rating | 400 bar | 300 bar |
Application Scope | Heavy-duty systems, global industries | Medium-duty systems, Asian industries |
Material Standards: 材料标准 | Carbon steel or stainless steel | Similar materials, but regional variations exist |
Sealing Mechanism | Advanced O-ring grooves for high pressure | Standard sealing designs |
Dimensions | International standard, globally unified | Regionally focused, metric-based |
ISO 6164法兰何时使用？
ISO 6164 flanges are ideal for:
High-Pressure Systems
Designed to handle pressures up to 400 bar, making them suitable for heavy-duty applications.
Global Operations
• 由于其全球标准化，受到国际运营公司的青睐。
Demanding Environments
Common in industries like oil and gas, mining, and marine equipment, where reliability under extreme conditions is critical.
When to Use JIS B 2291 Flanges?
JIS B 2291 flanges are best suited for:
Regional Applications
Ideal for businesses operating primarily in Asia or using JIS-compliant equipment.
Medium-Pressure Systems
With a pressure rating of up to 300 bar, they are suitable for medium-duty hydraulic systems.
Cost-Sensitive Projects
Often more cost-effective for applications not requiring the high-pressure capabilities of ISO 6164 flanges.
How to Choose the Right Flange?
Consider the following factors when deciding between ISO 6164 and JIS B 2291 flanges:
Operating Pressure
Choose ISO 6164 for systems exceeding 300 bar.
1. 北京时间：Beijing Time
2. 东京标准时间：Tokyo Standard Time
Choose JIS B 2291 if your equipment complies with JIS standards or is used in Asian markets.
Application Requirements
• For high-pressure, heavy-duty applications, ISO 6164 is the better choice.
• JIS B 2291 flanges are more suitable for cost-effective medium-pressure systems.
Compatibility
Ensure the flange standard matches the existing components in your system.
Industry Norms
Consult industry-specific regulations or client preferences to ensure compliance.
Because JETE FITTINGS offers high-quality hydraulic flanges.
在JETE FITTINGSWe offer a wide range of hydraulic flanges, including both ISO 6164 and JIS B 2291 standards.
Global Expertise: We manufacture flanges conforming to international and regional standards.
• High-Quality Materials: Products made from durable carbon steel, stainless steel, and customized alloys.
Customization: Our team can design and produce tailored solutions for specific requirements.
Technical Support: Expert advice to help you choose the right flange for your application.
Conclusion
Understanding the differences between ISO 6164 and JIS B 2291 flanges is essential for selecting the right component for your hydraulic system. By evaluating factors such as pressure rating, regional standards, and application requirements, you can make an informed decision.
For high-quality flanges that meet both ISO 6164 and JIS B 2291 standards, explore our offerings at.JETE FITTINGSLet us help you find the perfect solution for your hydraulic connection needs.
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