Polyurethane E4 Y-ring seal is a high-performance sealing solution designed for severe cylinder applications. This seal adopts an advanced Y-shaped cross-sectional structure and is made of high-quality polyurethane, providing excellent wear resistance, long service life, and reliable sealing performance under extreme working conditions.

Main Features and Advantages

• Excellent Abrasion Resistance - Polyurethane material has a service life 5-10 times longer than standard NBR seals in grinding environments

• Advanced Y-shaped Cross-section Design - Dual-lip structure ensures reliable sealing in both directions

• Temperature Resistance - Stable and reliable performance within the range of -30°C to +80°C

• Easy Installation - Self-lubricating design simplifies assembly and maintenance

Polyurethane E4 seals, leveraging the wear-resistant, oil-resistant, and high-elastic properties of polyurethane materials, are widely applied in hydraulic and pneumatic systems, automotive industry, industrial machinery, hydraulic engineering machinery, medical equipment, and household appliance consumer products. They are used for dynamic or static sealing to prevent leakage, dustproofing, and waterproofing.

• Abrasion Resistance - Outstanding wear resistance in contaminated environments

• Tear Resistance - Excellent mechanical properties prevent damage during installation

• Chemical Resistance - Compatible with most hydraulic fluids and lubricants

• Dual-Lip Configuration - Provides effective two-way sealing

• Optimized Geometry - Ensures low friction while maintaining sealing force

• Extrusion Resistance - Robust design prevents failure under high pressure

• Batch Consistency - Strict quality control ensures reliable performance

• Material Traceability - Full documentation for quality assurance

• Performance Testing - Validated under simulated operating conditions

• Installation Guidelines

  1. Clean Components - Ensure all surfaces are free from contaminants

  2. Lubricate Properly - Use compatible lubricant for easy installation

  3. Avoid Sharp Edges - Use installation sleeves to prevent damage

  4. Correct Orientation - Install with lips facing the correct direction