Description

SAE flanges are a standardized method of connecting hydraulic pipes, hoses, and components, particularly in high-pressure hydraulic systems. Here's a breakdown of their characteristics and applications: SAE Flange Standards: SAE (Society of Automotive Engineers) J518 and ISO 6162 are the primary standards that govern these flanges. These standards define the dimensions, pressure ratings, and bolting patterns for SAE flanges. They provide a reliable and consistent method for connecting hydraulic components. Key Features: Pressure Ratings: SAE flanges are designed for high-pressure applications. They are classified by pressure series: Code 61: Primarily for low-pressure applications (up to approximately 3,000 to 5,000 psi, depending on size). Code 62: Primarily for high-pressure applications (up to approximately 6,000 psi). There are also the SAE J518 code high pressure 4 bolt flange series, that can go to 10,000 PSI. Construction: They consist of a flanged head with bolt holes and an O-ring groove. The connection is made by bolting the flanged head to a mating flange, compressing an O-ring to create a leak-proof seal. Types: One-piece flanges: The flange is integrated into the component (e.g., a pump port). Two-piece flanges: The flange is separate and bolted to the component, allowing for easier installation and maintenance. Materials: Typically made from steel for high strength and durability. Sizes: SAE flanges come in various sizes to accommodate different pipe and hose diameters. Applications: Hydraulic Pumps and Motors: SAE flanges are commonly used to connect hydraulic pumps and motors to hydraulic systems. Hydraulic Valves: They are used to connect valves to pipes and hoses. Hydraulic Cylinders: They are used to connect cylinders to hydraulic lines. Heavy Equipment: Construction equipment, agricultural machinery, and mining equipment rely heavily on SAE flange connections. Industrial Hydraulics: They are used in various industrial hydraulic systems, such as presses and machine tools. Advantages: High-Pressure Capability: They can handle high pressures, making them suitable for demanding hydraulic applications. Leak-Proof Seal: The O-ring seal provides a reliable and leak-free connection. Standardization: SAE standards ensure interchangeability and compatibility between components from different manufacturers. Robustness: They are designed to withstand heavy loads and harsh environments.