In the field of ultra-high pressure hydraulic systems, connections between pipes and components such as valves, vessels and various equipment are inevitable. However, due to the inherently delicate nature of these pipes, fittings must withstand extreme pressure shocks, mechanical vibrations, corrosion and thermal shock. Therefore, the design, manufacture and installation of these ultra-high pressure fittings require meticulous attention to avoid leaks, fatigue-induced explosions and potential accidents.
The main goal of UHP systems is to minimize the number of fittings, thereby reducing the potential leak points in the system. For small pipes between 3 and 15 mm in diameter, intermediate joint structural fittings are generally used. Conversely, for pipes with a diameter of more than 15 mm, flange structural fittings are preferred because they are strong and durable and can maintain excellent sealing integrity. The seals of these ultra-high pressure fittings require considerable strength. For pressures below 100 MPa, seals can be made of materials such as rubber or fluoroplastics. However, when pressures exceed 100 MPa, the seals of the fittings must be made of steel.
Under these extreme pressures, geometric contact seals (such as spherical or conical angle surfaces) come into play. These seals rely on the compression force of the nut or flange to cause slight deformation on the contact surface, ensuring a uniform and effective line contact seal. Advances in materials science and precision engineering have significantly improved the reliability and safety of UHP systems. Despite this, new standards and technologies must continue to be developed to meet the growing demands of modern hydraulic applications. As the industry continues to push the boundaries of pressure capabilities, research and innovation remain critical to ensure safety and efficiency remain at the forefront. The future looks bright as industries invest heavily in engineering solutions to mitigate the challenges of UHP situations. This move will not only improve system integrity but also pave the way for breakthrough applications in a variety of fields, further highlighting the importance of rugged accessories in UHP hydraulic systems.
Post time: Jan-21-2025