Design and Function:
The MPT044 Back-Up Ring is designed as a static seal used in conjunction with O-rings or other sealing elements.
It acts as a supporting ring to prevent extrusion and maintain the integrity of the primary sealing element under high-pressure conditions. The back-up ring ensures a tight seal, prevents leakage, and enhances the overall performance and lifespan of hydraulic pumps.
Tonkee® manufactures the MPT044 Back-Up Ring using high-quality materials to ensure excellent performance and resistance to wear. It is commonly constructed from high-grade elastomers, such as nitrile rubber (NBR) or fluorocarbon rubber (FKM), which offer superior chemical resistance, temperature stability, and compatibility with hydraulic fluids.
The MPT044 Back-Up Ring is available in various sizes to accommodate different hydraulic pump applications. The precise dimensions may vary depending on specific requirements, but typically, it features an inner diameter (ID), outer diameter (OD), and cross-sectional thickness (CS). These dimensions are carefully designed to provide a proper fit within the hydraulic system, ensuring optimal sealing performance.
Pressure and Temperature Ratings:
The MPT044 Back-Up Ring is engineered to withstand high-pressure environments commonly encountered in hydraulic systems. It has excellent resistance to extrusion and can effectively maintain its sealing capabilities under extreme pressures. The specific pressure rating may vary depending on the material and design considerations. Similarly, the back-up ring exhibits temperature stability within a specified range, ensuring reliable performance in both low and high-temperature conditions.
Installation and Application Considerations:
Installing the MPT044 Back-Up Ring requires careful attention to detail to ensure proper sealing performance.
It is typically placed in the groove between the primary sealing element (such as an O-ring) and the gland surface. The back-up ring's dimensions and material should be selected based on the hydraulic system's operating parameters, including pressure, temperature, and fluid compatibility. It is essential to follow manufacturer guidelines and best practices during installation.
Compatibility and Maintenance:
The MPT044 Back-Up Ring is compatible with various hydraulic fluids, including mineral oils, synthetic oils, and water-based fluids. However, compatibility with specific fluids should be verified based on the material selection. Routine maintenance of hydraulic pumps should include inspection and replacement of back-up rings if signs of wear, damage, or degradation are observed. Regular maintenance helps ensure optimal performance and prolongs the service life of the hydraulic system.