8-12 Inch Double Sphere Rubber Expansion Joint with Axial Noise Reduction for Industrial Pipelines
Price:
Price Negotiable
MOQ:
1 set
Delivery Time:
After payment 15-30 working days
Brand:
Liwei
Product Description
Product Overview
The hand-wound double sphere rubber expansion joint features adjustable height and thickness with selectable wave configurations (single, double, or multiple). Designed for axial noise reduction and vibration dampening, this flexible joint compensates for thermal expansion and contraction in pipeline systems.
Product Structure
Rubber Bellows
Inner Layer: EPDM, NBR, Neoprene, Viton, Butyl, CSM
Outer Layer: EPDM, NBR, Neoprene, Viton, Butyl, CSM
Frame Layer: Cord fabric cloth reinforcement
Components
Flange/Retaining Ring: Carbon steel, galvanized/coated, stainless steel
Control Plate: Carbon steel, galvanized/coated, stainless steel (4.8-8.8 grade)
Tie Rods & Nuts: Carbon steel, galvanized/coated, stainless steel (4.8-8.8 grade)
Technical Specifications
| Diameter (DN) | Length (mm) | Axial Displacement (mm) | Radial Displacement (mm) | Deflection Displacement |
|---|---|---|---|---|
| 32-80 | 165-175 | 30-50 | 45 | ±7.5° |
| 100-150 | 225 | 35-50 | 45 | ±7.5° |
| 200-350 | 325 | 35-60 | - | - |
| 400-800 | 400-450 | 40-75 | 70-75 | ±12° |
| 900-3000 | 450-550 | 70-85 | 65-70 | ±10° |
Special sizes and lengths available upon request for custom applications.
Applications
Ideal for heating and cooling systems, industrial processing plants, water and wastewater treatment facilities, and other environments with temperature fluctuations. Working temperature range: -15°C to 80°C (special variants available for -30°C to 150°C).
Quality Advantages
Smooth external surface free of defects, burrs, rust, and mechanical damage
Precision welding with flat seams, no porosity or inclusions
Anti-corrosion treatment with pickling and rust removal
Comprehensive packaging with rainproof, moisture-proof, and shockproof protection
After-Sales Service
1-year warranty with repair, replacement, and return guarantees
Lifetime warranty after initial period with cost-only replacement parts
On-site installation support and technical assistance
24/7 support with 2-hour response time and 48-hour on-site resolution
Frequently Asked Questions
What is the brand name and manufacturing location?
Brand: Liwei | Manufacturing: Henan, China
What size range is available?
Available in DN15 to DN4000 models to accommodate various piping requirements.
What certifications does Liwei hold?
Certifications include ISO9001, TUV, WRAS, CO, MTC, PL, IV, and other international quality standards.
What are packaging and delivery details?
Packaged with inner plastic film and outer wooden case. Delivery time: 15-30 working days after payment.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Henan Liwei Industry Co., Ltd.
Location
179 Zhongxin Road, Zhengzhou, Henan，China
Contact Person
Carey Liu