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JIC vs AN Fitting Differences

Views: 39     Author: Site Editor     Publish Time: 2023-08-03      Origin: Site

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Hydraulic connectors play a crucial role in various industries, ensuring the smooth and efficient operation of hydraulic systems. These connectors are responsible for joining different components of the system, allowing the transmission of hydraulic fluid and power. Understanding the differences between various types of hydraulic fittings is essential to ensure compatibility and prevent leaks or system failures. In particular, knowing the distinctions between JIC (Joint Industry Council) and AN (Army/Navy) fittings is vital for professionals working with hydraulic systems.

In this article, we will delve into the significance of hydraulic connectors in different industries and emphasize the importance of comprehending the disparities between JIC and AN fittings. We will explore the features, applications, and advantages of each type, enabling you to make informed decisions when selecting the appropriate fitting for your hydraulic system. Additionally, we will discuss the various factors to consider when choosing hydraulic connectors, such as pressure ratings, thread sizes, and material compatibility. By the end of this article, you will have a comprehensive understanding of hydraulic connectors, empowering you to optimize the performance and reliability of your hydraulic systems.

JIC Fittings

Definition and explanation of JIC fittings

JIC fittings, also known as Joint Industry Council fittings, are a type of hydraulic fitting commonly used in fluid power applications. These fittings are designed to provide a secure and leak-free connection between hydraulic components, such as hoses, tubes, and adapters. JIC fittings are widely used in various industries, including automotive, aerospace, manufacturing, and construction.

Design and construction of JIC fittings

JIC fittings are typically made of high-quality materials, such as stainless steel or brass, to ensure durability and resistance to corrosion. They consist of two main components: the male fitting and the female fitting. The male fitting has external threads, while the female fitting has internal threads. These threads are designed to create a tight seal when the fittings are screwed together.

One of the distinguishing features of JIC fittings is the 37-degree flare angle. This flare angle allows for a reliable and secure connection, even under high pressure. The flared end of the fitting is conical in shape, providing a larger surface area for contact between the fitting and the mating component. This design helps to distribute the load evenly and minimize the risk of leakage.

Common applications and industries where JIC fittings are used

JIC fittings are widely used in hydraulic systems, where they play a crucial role in ensuring the efficient and reliable operation of machinery and equipment. These fittings are commonly found in hydraulic power units, cylinders, pumps, valves, and other hydraulic components. They are also used in various industries, including:

1. Automotive: JIC fittings are commonly used in automotive applications, such as brake systems, power steering systems, and suspension systems. Their ability to withstand high pressure and provide a secure connection makes them ideal for these applications.

2. Aerospace: The aerospace industry relies heavily on JIC fittings for hydraulic systems in aircraft. These fittings are used in critical applications, such as landing gear, flight control systems, and hydraulic actuators. The precision and reliability of JIC fittings are essential in maintaining the safety and performance of aircraft.

3. Manufacturing: JIC fittings are widely used in manufacturing processes that require hydraulic power, such as metalworking, plastic injection molding, and material handling. These fittings ensure the smooth operation of hydraulic machinery, improving productivity and efficiency in manufacturing operations.

4. Construction: JIC fittings are also used in construction equipment, such as excavators, cranes, and loaders. These fittings are essential for hydraulic systems that power the movement and operation of heavy machinery. Their durability and leak-free design make them suitable for the demanding conditions of construction sites.

Advantages and disadvantages of JIC fittings

JIC fittings offer several advantages that make them a preferred choice in many industries. Some of the key advantages include:

Secure and leak-free connection: The 37-degree flare angle and the tight seal created by JIC fittings ensure a secure and leak-free connection, even under high pressure conditions. This reliability is crucial in applications where any leakage can lead to equipment failure or safety hazards.

Compatibility: JIC fittings are designed to be compatible with a wide range of hydraulic components, including hoses, tubes, and adapters. This compatibility allows for easy interchangeability and flexibility in hydraulic system design and maintenance.

Easy installation: JIC fittings are relatively easy to install, requiring simple tools such as wrenches or spanners. The straightforward installation process saves time and effort during assembly or maintenance tasks.

Despite their numerous advantages, JIC fittings also have some disadvantages that should be considered:

Cost: JIC fittings can be more expensive compared to other types of hydraulic fittings. The high-quality materials and precise manufacturing processes contribute to their higher cost. However, the long-term reliability and performance of JIC fittings often outweigh the initial investment.

Space requirements: The 37-degree flare angle of JIC fittings requires additional space for installation compared to other fittings. This can be a limiting factor in applications with tight spaces or where compact designs are required.

Illustrative examples and visuals of JIC fittings

2J4 45°JIC MALE 74°CONE/ JIC FEMALE 74°SEAT JIC fittings

6503 Female Pipe Thread / Female JIC 90° valves and fittings

AN Fittings

Definition and explanation of AN fittings

AN fittings: A Brief Introduction

AN fittings, also known as Army-Navy fittings, are a type of standardized fitting used in various industries for connecting hoses and pipes. These fittings follow a specific design and construction, ensuring a secure and leak-free connection. AN fittings are widely used in automotive, aerospace, and industrial applications due to their reliability and versatility.

Design and construction of AN fittings

AN fittings are designed with precision and attention to detail. They consist of a male and female end, both featuring a 37-degree flare angle. This flare angle ensures a tight seal when the fittings are connected, preventing any leaks or fluid loss. The male end of the fitting has a straight thread, while the female end has a corresponding straight thread with a sealing surface.

The threads on AN fittings are known as UNF (Unified National Fine) threads. These threads provide a secure and tight connection, allowing for easy installation and removal. The use of UNF threads also ensures compatibility with other AN fittings, making them interchangeable and easy to replace if needed.

AN fittings are typically made from high-quality materials such as aluminum, stainless steel, or brass. These materials offer excellent resistance to corrosion and can withstand high pressure and temperature conditions. The fittings are precision machined to ensure accurate dimensions and smooth surfaces, further enhancing their performance and durability.

Common applications and industries where AN fittings are used

AN fittings find extensive use in various industries and applications. Some of the common industries where AN fittings are used include:

1. Automotive: AN fittings are widely used in the automotive industry for fuel, oil, and coolant systems. They provide a reliable and leak-free connection, ensuring the efficient flow of fluids in high-performance vehicles.

2. Aerospace: AN fittings are essential in the aerospace industry for hydraulic and fuel systems. The precision and reliability of these fittings make them ideal for critical applications where safety and performance are paramount.

3. Industrial: AN fittings are used in various industrial applications, including hydraulic systems, pneumatic systems, and fluid transfer systems. Their versatility and compatibility make them a preferred choice for many industrial processes.

Advantages and disadvantages of AN fittings

AN fittings offer several advantages over other types of fittings. Some of the key advantages include:

Leak-free connection: The 37-degree flare angle and UNF threads ensure a secure and tight connection, minimizing the risk of leaks and fluid loss.

Interchangeability: AN fittings are designed to be interchangeable, allowing for easy replacement and compatibility with other fittings of the same size.

Durability: The use of high-quality materials and precision machining results in durable fittings that can withstand high pressure and temperature conditions.

However, AN fittings also have a few disadvantages to consider:

Cost: AN fittings can be more expensive compared to other types of fittings due to their precision and high-quality materials.

Specialized tools: Installing and removing AN fittings may require specialized tools such as flare wrenches and thread sealant. This can add to the overall cost and complexity of the installation process.

Illustrative examples and visuals of AN fittings

Lock-On Standpipe to suit LOL/LOC Hose 30182 push-lock hydraulic fittings Standpipe hydraulic

Differences between JIC and AN Fittings

Thread types and sizes used in JIC and AN fittings

JIC Fittings

JIC fittings, also known as Joint Industry Council fittings, are widely used in hydraulic systems. These fittings have a 37-degree flare angle and use a straight thread with a 45-degree inverted flare. The thread size used in JIC fittings is measured in inches, with common sizes ranging from 1/8" to 2". The threads are designed to provide a tight and secure connection, ensuring leak-free operation in high-pressure applications. JIC fittings are commonly used in industries such as aerospace, automotive, and industrial manufacturing.

AN Fittings

AN fittings, short for Army/Navy fittings, are primarily used in the automotive and motorsport industries. These fittings have a 37-degree flare angle, similar to JIC fittings, but they use a different thread type known as the AN thread. AN threads are measured in a dash number system, with sizes ranging from -2 to -32. The dash number corresponds to the outer diameter of the tubing or hose that the fitting is designed to connect. AN fittings are known for their precision and reliability, making them a popular choice among performance enthusiasts and professional racers.

Flare angles and sealing mechanisms in JIC and AN fittings

JIC Fittings

JIC fittings utilize a 37-degree flare angle, which provides a reliable and secure connection. The flare angle ensures a large contact area between the fitting and the flare, distributing the load evenly and minimizing the risk of leaks. JIC fittings use a metal-to-metal sealing mechanism, where the flare of the fitting makes contact with the flare of the tubing or hose. This type of sealing mechanism is highly effective in preventing leaks, even under high-pressure conditions. The metal-to-metal seal also allows for easy disassembly and reassembly without compromising the integrity of the connection.

AN Fittings

Similar to JIC fittings, AN fittings also feature a 37-degree flare angle for optimal sealing. The flare angle ensures a tight and leak-free connection, even in high-pressure applications. AN fittings utilize a sealing mechanism called the "37-degree sealing angle," where the flare of the fitting makes contact with the cone-shaped seat of the fitting. This sealing mechanism provides excellent sealing performance and allows for easy installation and removal of the fittings. The 37-degree sealing angle is designed to withstand extreme conditions and vibrations, making AN fittings a reliable choice for motorsport applications.

Material composition and compatibility in JIC and AN fittings

JIC Fittings

JIC fittings are commonly made from materials such as stainless steel, carbon steel, and brass. Stainless steel JIC fittings are highly resistant to corrosion and offer excellent durability, making them suitable for harsh environments. Carbon steel JIC fittings are known for their strength and affordability, making them a popular choice for general-purpose applications. Brass JIC fittings are often used in low-pressure applications due to their lower strength compared to stainless steel and carbon steel. JIC fittings are compatible with a wide range of fluids, including hydraulic oils, fuels, and coolants.

AN Fittings

AN fittings are typically manufactured from aluminum or stainless steel. Aluminum AN fittings are lightweight and offer excellent corrosion resistance, making them ideal for weight-sensitive applications. Stainless steel AN fittings provide superior strength and durability, making them suitable for high-performance and racing applications. AN fittings are compatible with a variety of fluids, including gasoline, oil, coolant, and hydraulic fluids. It is important to ensure compatibility between the fitting material and the fluid being used to prevent any chemical reactions or degradation.

Performance characteristics and pressure ratings of JIC and AN fittings

JIC Fittings

JIC fittings are known for their high-pressure capabilities and reliable performance. These fittings can withstand pressures up to 6000 psi, making them suitable for demanding hydraulic systems. JIC fittings also offer excellent resistance to vibration and shock, ensuring a secure connection even in harsh operating conditions. The metal-to-metal sealing mechanism of JIC fittings provides a reliable and leak-free connection, allowing for efficient fluid transfer. JIC fittings are widely used in applications where safety, reliability, and performance are crucial.

AN Fittings

AN fittings are designed to meet the rigorous demands of motorsport applications. These fittings are capable of handling high pressures, with some variants rated up to 10,000 psi. AN fittings are also known for their resistance to vibration and extreme temperatures, ensuring reliable performance in racing environments. The 37-degree sealing angle of AN fittings provides a tight and secure connection, minimizing the risk of leaks. AN fittings are commonly used in fuel systems, oil coolers, and other high-performance applications where precision and durability are paramount.

Cost considerations and availability of JIC and AN fittings

JIC Fittings

JIC fittings are widely available and come in a range of sizes and materials, making them suitable for various applications and budgets. The cost of JIC fittings can vary depending on factors such as material, size, and brand. Stainless steel JIC fittings tend to be more expensive compared to carbon steel or brass fittings. However, the higher cost is justified by the superior corrosion resistance and durability offered by stainless steel. JIC fittings can be purchased from hydraulic supply stores, online retailers, and industrial distributors.

AN Fittings

Choosing the Right Fitting for Your Application

Factors to consider when selecting between JIC and AN fittings

Compatibility with existing hydraulic systems and components

When choosing the right fitting for your application, one of the key factors to consider is the compatibility with your existing hydraulic systems and components. JIC fittings, also known as Joint Industry Council fittings, are widely used in the hydraulic industry due to their versatility and compatibility. They are designed to provide a reliable and leak-free connection between various hydraulic components, such as hoses, pipes, and cylinders.

On the other hand, AN fittings, which stands for Army/Navy fittings, were originally developed for the aerospace industry. They are known for their lightweight construction and high-performance capabilities. However, it is important to assess whether AN fittings are compatible with your specific hydraulic system and components before making a decision.

To ensure compatibility, you should carefully examine the specifications and requirements of your hydraulic system. Consider factors such as the size, pressure rating, and thread type of the fittings. It is crucial to choose fittings that match the specifications of your system to ensure a proper and secure connection.

Environmental considerations and specific industry requirements

Another important aspect to consider when selecting between JIC and AN fittings is the environmental conditions and specific industry requirements of your application. Different fittings may have varying levels of resistance to environmental factors such as temperature, pressure, and corrosion.

For example, if your application involves working in extreme temperatures or harsh environments, you may need fittings that are specifically designed to withstand these conditions. JIC fittings are known for their durability and resistance to corrosion, making them suitable for a wide range of industries and applications.

On the other hand, AN fittings are often preferred in industries where weight reduction is crucial, such as the aerospace and automotive sectors. These fittings are lightweight and offer excellent performance under high-pressure conditions. However, they may not be as resistant to corrosion as JIC fittings, so it is important to assess whether this factor is critical to your application.

Practical tips and guidelines for making the right choice

To assist you in making the right choice between JIC and AN fittings, here are some practical tips and guidelines to consider:

1. Understand the specific requirements of your application: Before making a decision, thoroughly assess the needs and specifications of your hydraulic system. Consider factors such as pressure rating, temperature range, and compatibility with other components.

2. Consult with industry experts: If you are unsure about which fitting to choose, it is always beneficial to seek advice from industry experts or hydraulic specialists. They can provide valuable insights and recommendations based on their experience and knowledge.

3. Conduct thorough research: Take the time to research and compare the features, benefits, and limitations of both JIC and AN fittings. Look for customer reviews, case studies, and real-life examples to gain a better understanding of their performance in different applications.

4. Consider long-term costs: While the initial cost of fittings may vary, it is important to consider the long-term costs associated with maintenance, replacement, and potential leaks. Choosing fittings that offer durability and reliability can help minimize these costs in the long run.

Case studies or real-life examples showcasing the selection process

To further illustrate the selection process between JIC and AN fittings, let's explore a couple of case studies:

Case Study 1: Hydraulic System in the Mining Industry In a mining operation, a hydraulic system is used to power heavy machinery and equipment. The system operates in harsh conditions with high-pressure and abrasive materials. After careful evaluation, the engineering team opted for JIC fittings due to their excellent resistance to corrosion and durability. These fittings proved to be reliable and cost-effective, reducing downtime and maintenance costs.

Case Study 2: Aerospace Application In the aerospace industry, weight reduction and high-performance are crucial factors. A manufacturer of aircraft components needed fittings that could withstand high-pressure conditions while minimizing weight. After extensive research and testing, AN fittings were chosen for their lightweight construction and exceptional performance. These fittings helped improve fuel efficiency and overall aircraft performance.

Conclusion

In conclusion, JIC fittings and AN fittings are both reliable choices for hydraulic applications that require durability and performance. JIC fittings provide a secure and leak-free connection, while AN fittings offer a secure connection with their 37-degree flare angle and UNF threads. Both fittings are widely used in industries such as automotive, aerospace, and manufacturing. However, JIC fittings may have cost and space requirements, while AN fittings can be more expensive and require specialized tools for installation. AN fittings are commonly used in the automotive and motorsport industries and are available from specialized suppliers. The cost of AN fittings can vary depending on factors such as material, size, and brand. Choosing the right fitting for your application requires careful consideration of factors such as compatibility, environmental considerations, and industry requirements. By following practical tips and guidelines, you can make an informed decision that ensures optimal performance and reliability in your hydraulic system.

Frequently Asked Questions

Q: What are the main differences between JIC and AN fittings?

A: JIC fittings, also known as 37° flare fittings, have a 37-degree flare angle and are commonly used in hydraulic systems. AN fittings, on the other hand, have a 37-degree flare angle as well but are primarily used in the automotive industry for fuel, oil, and coolant systems. While both fittings have a similar flare angle, they differ in terms of their thread sizes and tolerances.

Q: Can JIC fittings be used interchangeably with AN fittings?

A: In most cases, JIC fittings cannot be used interchangeably with AN fittings due to differences in thread sizes and tolerances. JIC fittings typically have a 37-degree flare angle with a 45-degree inverted flare seat, while AN fittings have a 37-degree flare angle with a 37-degree flare seat. Therefore, it is important to use the correct fitting type for the specific application to ensure proper fit and functionality.

Q: Are JIC fittings more commonly used than AN fittings?

A: JIC fittings are commonly used in hydraulic systems, making them more prevalent in industries such as manufacturing, construction, and agriculture. AN fittings, on the other hand, are primarily used in the automotive industry for fuel, oil, and coolant systems. The usage of JIC or AN fittings depends on the specific application and industry requirements, so it is difficult to determine which fitting type is more commonly used overall.

Q: Which fitting type offers better performance in high-pressure applications?

A: Both JIC and AN fittings are designed to handle high-pressure applications effectively. However, AN fittings, with their 37-degree flare seat, provide a tighter seal and are generally considered to offer better performance in high-pressure applications. The 37-degree flare seat of AN fittings ensures a more secure connection, reducing the risk of leaks and enhancing overall performance in demanding environments.

Q: Are JIC and AN fittings compatible with each other?

A: JIC and AN fittings are not directly compatible with each other due to differences in thread sizes and tolerances. However, adapters and conversion fittings are available to facilitate compatibility between the two fitting types. These adapters allow for the connection of JIC and AN fittings, enabling users to adapt their systems and achieve compatibility as required.

Q: What are the cost differences between JIC and AN fittings?

A: The cost differences between JIC and AN fittings can vary depending on factors such as the manufacturer, material, and size of the fittings. Generally, AN fittings tend to be more expensive than JIC fittings due to their specific usage in the automotive industry. However, the cost difference may not be significant in certain applications, and it is advisable to compare prices from different suppliers to determine the most cost-effective option.

Q: Can JIC and AN fittings be used in automotive applications?

A: JIC fittings are commonly used in hydraulic systems in various industries, including automotive applications. However, AN fittings are specifically designed for automotive use and are widely used in fuel, oil, and coolant systems. AN fittings offer a secure and reliable connection, making them suitable for the demanding conditions often encountered in automotive applications.


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