The Liwei hand-wound EPDM double ball rubber expansion joint is engineered to accommodate axial, horizontal, and angular movement in pipeline systems. This flexibility makes it ideal for applications involving thermal expansion, ground settlement, or seismic activity, helping prevent system failures and extend piping infrastructure lifespan.

Special sizes and lengths available upon request for custom applications.

• Adjustable ball height and thickness for customized performance
• Multiple ball corrugation options (single, double, or more)
• Cost-effective manual wound construction for non-pressure bearing applications
• EPDM rubber material for excellent durability and chemical resistance

• Comprehensive delivery inspection including pressure testing and material verification
• 12-month quality guarantee with third-party testing support
• Free technical solutions and engineering drawings provided
• Professional packaging team ensuring secure transport
• 24/7 online customer support for pre and post-sales assistance
• Factory inspection support available
• Guaranteed on-time delivery
• Free samples available for evaluation

Our products are exported to over 150 countries worldwide. We maintain long-term cooperative relationships with global customers and have extensive export experience. Each joint is carefully packaged with inner plastic film and outer wooden cases, with steel frames used for multiple units to ensure secure transport.

A: Available in sizes from DN15 to DN4000 to accommodate various piping requirements.

A: Certified by ISO9001, TUV, WRAS, CO, MTC, PL, IV, and other international standards.

A: Minimum order is one set, suitable for both small and large-scale projects.

A: Each joint features inner plastic film and outer wooden case packaging, with steel frames for multiple units.

A: We accept T/T, Western Union, L/C, D/A, and MoneyGram with negotiable pricing.