SAE flanges are essential components in hydraulic systems, providing reliable and robust connections that ensure optimal performance and safety. These flanges are widely used across various industries due to their high pressure handling capabilities and compatibility with multiple sealing methods. At JeteFittings, we specialize in manufacturing premium SAE flanges designed to meet and exceed industry standards such as SAE J518 and ISO 6162. With over 18 years of experience, our company offers high-quality flanges that combine durability, precision, and cost-effectiveness, making them ideal for demanding hydraulic applications.

SAE flanges are standardized hydraulic flange fittings defined primarily under SAE J518 and ISO 6162 standards. These standards specify dimensions, pressure ratings, and sealing methods to ensure interchangeability and reliable performance. SAE J518 focuses on the design and testing of hydraulic flanges, categorizing them mainly into Code 61 and Code 62 flanges, each designed for different pressure requirements. ISO 6162 complements these by aligning international specifications to facilitate global usage. Understanding these standards is crucial for selecting the right SAE flange for your hydraulic system, ensuring compatibility and safety.

JeteFittings rigorously adheres to these standards in the production process, ensuring that every flange we deliver meets precise dimensional tolerances and performance criteria. This commitment guarantees seamless integration into hydraulic systems with maximum efficiency and minimal risk of failure.

SAE flanges are distinguished by their robust design featuring bolt connections and O-ring seals that provide leak-proof joints. The bolt connection method uses multiple bolts arranged around the flange circumference to evenly distribute pressure and maintain mechanical integrity under high loads. This design simplifies assembly and disassembly, which is advantageous for maintenance and repairs.

The O-ring seal, positioned in a dedicated groove, offers an effective sealing solution that can withstand high pressures and prevent fluid leakage. Typically made from elastomeric materials compatible with hydraulic fluids, these seals improve the reliability of the connections. JeteFittings utilizes high-grade O-ring materials to ensure durability and resistance to temperature variations, contributing to the overall safety and longevity of the hydraulic system.

The selection of materials plays a critical role in the performance and durability of SAE flanges. The most commonly used materials are carbon steel (ST52.3) and stainless steel (AISI SS316L). Carbon steel offers excellent mechanical properties and cost-efficiency, making it suitable for most industrial hydraulic applications. Stainless steel, on the other hand, provides superior corrosion resistance, especially in harsh or marine environments where durability is paramount.

At JeteFittings, our manufacturing facilities utilize these materials carefully sourced and processed under ISO 9001 certified quality management systems. Our 9,850-square-meter production base equipped with 86 skilled technicians ensures that every flange meets stringent mechanical and chemical property requirements, including yield strength and elongation at fracture. This meticulous approach guarantees that the final products withstand extreme conditions and maintain performance over time.

SAE flanges come in two primary size and pressure code classifications: Code 61 and Code 62. Code 61 flanges are designed for working pressures up to 3,000 psi (approximately 210 bar), making them suitable for medium to high-pressure hydraulic systems. Code 62 flanges support even higher pressures, up to 4,000 psi (approximately 275 bar), and are used in more demanding industrial applications.

The size range for these flanges varies to accommodate different pipe diameters and hydraulic system requirements. Code 61 flanges typically cover nominal sizes from 1/2 inch to 2-1/2 inches, while Code 62 flanges span from 1/2 inch up to 3 inches or more. JeteFittings offers a comprehensive range of SAE flanges across these sizes, ensuring compatibility with diverse system specifications and enabling customized hydraulic solutions.

SAE flanges can be connected through various methods including socket welding, butt welding, BSPP (British Standard Parallel Pipe), and NPT (National Pipe Thread). Each connection type serves specific system needs and installation preferences. Socket and butt welding offer permanent, strong joints for high-pressure applications, while BSPP and NPT threaded connections allow for easier disassembly and maintenance.

Proper assembly of SAE flanges is vital for maintaining hydraulic system reliability. JeteFittings recommends the following step-by-step procedure: first, ensure all flange and O-ring surfaces are clean and undamaged; second, position the O-ring correctly in its groove; third, align the flange faces accurately; fourth, insert bolts and tighten them in a crisscross pattern to the recommended torque specification; finally, inspect the assembly for leaks during initial system operation. Following these instructions helps prevent common issues such as leaks and mechanical failures.

SAE flanges manufactured by JeteFittings exhibit excellent mechanical properties, including high yield strength and suitable elongation at fracture, which are essential for withstanding operational stresses. These properties are verified through advanced testing methods to ensure compliance with international standards.

The O-ring seals used in our flanges comply with strict quality standards, often made from materials such as nitrile rubber (NBR) or fluorocarbon (FKM/Viton), which provide chemical resistance and temperature tolerance. These seals are carefully selected to match specific hydraulic fluid types and operating conditions, ensuring long service life and leak-free performance.

SAE flanges are designed to operate safely within specified pressure ranges: Code 61 flanges handle pressures up to 3,000 psi, while Code 62 flanges can tolerate pressures up to 4,000 psi. Understanding these limits is crucial for system design to avoid overpressure risks.

Temperature also impacts flange performance. Typically, SAE flanges accommodate operating temperatures ranging from -40°C up to +120°C, depending on the seal material used. At JeteFittings, we advise adjusting flange and O-ring selections based on the application's temperature demands to maintain optimal sealing and mechanical integrity.

JeteFittings stands out in the hydraulic components market due to our strategic advantages. With 18 years of industry experience and a production facility certified to ISO 9001, we provide a unique combination of quality, customization, and competitive pricing. Our facility, located just four hours from Shanghai port, ensures efficient logistics and timely delivery worldwide.

We offer extensive stock and tailored solutions for the European and US markets, supporting customers with high standards for hydraulic system components. Our commitment to quality and service is reflected in every SAE flange we produce, making JeteFittings a trusted partner for your hydraulic system needs.

SAE flanges are fundamental components in hydraulic systems, providing secure, leak-proof connections that withstand high pressures and challenging operating conditions. Adhering to standards such as SAE J518 and ISO 6162, these flanges ensure system reliability and safety. JeteFittings offers premium SAE flanges crafted from high-quality materials, with precise design features and strict quality control, making them ideal for diverse hydraulic applications.

Explore our comprehensive range of SAE flanges and benefit from expert manufacturing backed by nearly two decades of experience. For more information, visit our PRODUCTS page or learn more about our company on the ABOUT US page.

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