Hydraulic hose fittings are essential components in hydraulic systems, enabling the safe and efficient transmission of hydraulic fluid by connecting hoses to key system elements such as valves, pumps, and cylinders. Far from being simple connectors, these fittings play a critical role in maintaining system integrity through leak prevention, pressure retention, vibration absorption, and overall system reliability.
Hydraulic fittings are manufactured in a variety of shapes and materials to meet the demands of different applications and operating environments. Typically, they are made from high-strength steel alloys with excellent corrosion and pressure resistance. Among them, the GU-type fitting is widely used and features a BSP 60° female cone structure, which mates with a male flare counterpart. This threaded connection method is one of the most commonly used worldwide, offering both high sealing performance and mechanical stability.
The assembly method for these fittings is generally crimp-type, where the fitting and hose are joined by selecting an appropriately sized crimping dies and using a hydraulic crimping machine (crimper) to securely fasten the connection. Precision in torque application and alignment is essential to ensure proper sealing and prevent disconnection or fluid leakage under high pressure.
GU-type fittings are available in various configurations—including straight, 45-degree, and 90-degree elbow designs—and are manufactured to comply with BSP (British Standard Pipe) international thread standards, ensuring broad compatibility and standardization.
These high-performance hydraulic fittings are extensively used across industries such as construction machinery, industrial plants, agricultural equipment, port facilities, offshore platforms, and specialty vehicles. Given the potential for significant productivity loss and safety risks in the event of failure or leakage, the selection of accurate specifications and the assurance of product reliability are of paramount importance.