Large Bore Full Face Rubber Expansion Joint

• Full-width rubber sealing face creates even contact pressure for reliable low-pressure large-bore sealing
• All-rubber lightweight construction reduces installation and replacement costs vs. metal bellows
• Smooth full-bore flow path minimizes head loss for high-volume gravity flow applications
• Designed for municipal sewage, water supply and flood drainage large-bore pipelines

This expansion joint serves large-diameter sewage intake mains at municipal wastewater treatment facilities, accommodating ground settlement and thermally driven pipe dimensional shift while sustaining reliable interface sealing during high-volume sewage transport. It also deploys on large-size inlet and outlet piping for water conservancy hubs and urban flood discharge pump stations, absorbing assembly misalignment and reducing joint leakage hazards during peak flow flood discharge events.

Henan Fuwei Pipeline Equipment Manufacturing Co., Ltd. modifies bore dimensions and full-face sealing widths to match existing field pipeline geometry. Rubber compound formulations adjust for improved abrasion resistance and sewage medium compatibility, and designs adapt to different large-bore flange standards. Custom samples need 15–20 day development cycles with an MOQ of 10 units, and dimension drawings of sealing faces are sent for customer confirmation.

Testing procedures use low-pressure sealing benches to verify full-face flange contact performance. Test suites also run rubber abrasion trials plus tensile strength characterization to validate long-term operational reliability under large-flow low-pressure working circumstances. Every finished unit completes full sealing inspection pre-shipment, third-party inspection is permitted, and all goods carry a 24-month warranty.

Large-bore finished goods go into purpose-built solid wooden crates. Thick protective boards shield full rubber sealing surfaces from compressive deformation, and internal reinforcing frameworks stabilise crate contents. Outer crate markings identify lifting points plus centre-of-gravity information simplifying loading-unloading operations. Standard 20-foot container orders finish within a 30-day lead time, custom large-bore items take 40–50 day production cycles, and phased delivery solutions adapt to project construction timelines.

• Maximum achievable bore dimensions require project-specific consultation with sales personnel
• Volume-adjusted pricing applies for large-scale infrastructure project procurements
• Not recommended for negative pressure lines; reinforced models are available for vacuum service

Provide your pipeline nominal diameter, working pressure value and medium type so sales staff can confirm feasible product configuration options.

Hot Tags: large bore full face rubber expansion joint, China large bore full face rubber expansion joint suppliers, factory, chilled water expansion joint, rubber expansion joints dn100 size specification, rubber expansion joints internal sleeve liner, rubber flexible coupling 2 inch diameter, Rubber Shaft Coupling Joint, single sphere expansion joint 20 inch diameter