U-Cups

U-cup seals are designed with a flexible lip profile that allows them to seal effectively in both directions, making them ideal for dynamic hydraulic and pneumatic applications. The U-shaped cross-section enables excellent sealing performance under high pressures, while materials like polyurethane or PTFE blends provide outstanding wear resistance and long service life. As pressure increases, the U-cup’s lips expand outward to enhance the sealing force, ensuring a tighter seal without the need for additional energizers or complex assemblies.