How to Measure JIC Hydraulic Fittings

JIC hydraulic fittings, as common connecting components in hydraulic systems, directly impact the stability and reliability of the system. Properly measuring JIC hydraulic fittings is a critical step in ensuring the safe operation of the system. This article delves into the measurement methods of JIC hydraulic fittings, including detailed aspects such as dimensions, threads, and sealing surfaces.

Overview of JIC Hydraulic Fittings

JIC (Joint Industry Council) hydraulic fittings are widely used connecting components in hydraulic systems, characterized by thread connections and metal-to-metal seals. Before measuring JIC hydraulic fittings, it's essential to understand their basic structure and main components, including threads, conical surfaces, and sealing surfaces.

Thread Measurement and Standards

Accurate measurement of the threads of JIC hydraulic fittings is fundamental to ensuring secure connections. Here are some measurements related to threads:

1.Thread height measurement: 

Use a thread gauge for thread height measurement. Ensure that the gauge's contact is perpendicular to the thread axis, then measure the distance between the thread crest and root to determine if the thread height meets the standard. For example, if the standard thread height is 0.76mm and the actual height is 0.75mm, it is considered to meet the standard.

2.Pitch measurement: 

Use a pitch gauge or thread caliper to measure the pitch. Align the tool's blade with the two peaks of the thread, measure the distance between the two peaks to obtain the pitch. If the standard pitch is 2.63mm and the actual pitch is 2.62mm, it meets the standard requirements.

3.Outer diameter measurement: 

Use an outside caliper or an outer diameter micrometer to measure the outer diameter. Ensure the tool's measuring plane is perpendicular to the thread axis, and measure the distance of the outer diameter to determine if it meets the standard. For example, if the standard outer diameter is 9.52mm and the actual outer diameter is 9.51mm, it meets the standard requirements.

4.Thread specification standards: 

Standard JIC hydraulic fitting thread heights should comply with ISO and SAE standards, among others. Following these international standards in design and manufacturing ensures interchangeability and connection reliability. For instance, for JIC 37-degree hydraulic fittings, the thread standard can be referenced from ISO 8434-2.

Conical Surface Measurement

The conical surface angle is typically measured using a taper gauge. Align the gauge's blade with the fitting's conical surface, and measure the angle using the gauge's scale. For example, for JIC 37-degree hydraulic fittings, the standard conical surface angle is 37 degrees. If the actual measured angle is 36.9 degrees, it meets the standard requirements.

Sealing Surface Measurement and Verification

The sealing performance of JIC hydraulic fittings directly affects the stability of the system. Here are some measurements related to sealing surfaces:

1.Flatness of the sealing surface: 

Use a straightedge or similar tools to measure the flatness of the sealing surface. Place the straightedge along the sealing surface and assess the flatness by observing the contact. If the specified flatness standard is 0.01mm, and the actual flatness measured with a straightedge is 0.008mm, it meets the standard requirements.

2.Sealing surface angle: 

Use an angle gauge or taper gauge to measure the angle of the sealing surface. Place the tool on the sealing surface and measure the angle using the tool's scale. If the specified sealing surface angle standard is 37 degrees, and the actual measured angle is 37.1 degrees, it exceeds the standard requirements.

3.Surface roughness: 

Use a surface roughness measurement instrument to measure the surface roughness of the sealing surface. The instrument will provide the Ra value to assess the smoothness of the surface. If the specified sealing surface roughness standard is Ra 0.2μm, and the actual Ra value measured is 0.18μm, it meets the standard requirements.

Why Choose NJ for Your JIC Hydraulic Fittings Requirements:

1.Wide Range of Product Sizes, Shapes, and Materials

NJ offers a diverse selection of product sizes, shapes, and materials to meet the requirements of various hydraulic systems. Whether your project demands small, compact fittings or large, high-flow components, NJ provides suitable solutions. Our product line covers various materials, including high-strength metal alloys and corrosion-resistant stainless steel, ensuring excellent performance and durability in diverse environments.

2.Multiple Surface Treatment Options

NJ provides customers with a variety of surface treatment options to ensure outstanding performance of JIC assemblies during use. Whether it's corrosion-resistant coatings, anti-wear treatments, or special surface treatments, we can customize based on your specific requirements. This versatility not only enhances the lifespan of the assemblies but also improves their performance under various working conditions.

3.Exceptional Quality

NJ has always been committed to delivering exceptional product quality. We strictly adhere to international standards and industry regulations, employing advanced production processes and quality control measures. Each JIC assembly undergoes meticulous testing to ensure it meets the highest standards, providing reliable performance for your hydraulic systems.

4.Competitive Pricing

NJ offers excellent value with competitive pricing for customers. By optimizing production processes, improving efficiency, and reducing costs, we convert these advantages into affordable prices. Regardless of the scale of your project, we are dedicated to providing cost-effective solutions, allowing you to complete your project within budget.

5.Outstanding Customer Service

NJ's outstanding customer service is a key factor in our success. Our professional team is ready to support you, answer your questions, and resolve any issues. We prioritize close collaboration with customers to understand their specific needs and provide customized solutions. Whether it's technical support or after-sales service, NJ always puts the customer first.

In summary, choosing NJ as your supplier for JIC hydraulic fittings means opting for a wide selection, exceptional quality, competitive pricing, and comprehensive customer service. We are committed to being your long-term partner in the field of hydraulic systems, providing reliable and efficient solutions for your projects.

Conclusion

Properly measuring JIC hydraulic fittings is a necessary step to ensure the normal operation of hydraulic systems. By understanding the critical elements of fittings, such as structure, dimensions, threads, and sealing surfaces, and conducting measurements according to standards, it is possible to ensure the strength and sealing performance of connections. In practical applications, regular measurements and inspections of hydraulic fittings can improve system reliability and reduce the likelihood of failures.

As a company with 19 years of industry experience, we deeply understand the importance of JIC hydraulic fittings and their impact on the smooth operation of hydraulic systems. We take pride in providing our customers with high-quality JIC hydraulic fittings that meet the highest standards of reliability and durability. With extensive professional knowledge, we are committed to offering standardized and customized solutions to meet the needs of both our customers and the market, ensuring a win-win situation. Whether you are in industrial hydraulic systems, automotive, agricultural machinery, construction and excavation equipment, aerospace, marine engineering, or the food processing and pharmaceutical industries, our range of JIC fittings can fulfill all your requirements. Trust us to be a strong support for your worry-free market expansion and a reliable partner for efficient operations. Contact us now and experience the difference that 19 years of expertise can make.