Henan Liwei Industry Co., Ltd.
                                                                                                           
Verified Supplier
38 Years
Since 1988
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Tools & Hardware Pipe Fittings

Double Sphere Rubber Expansion Joint DN15-DN4000 with 30-85mm Displacement Range for Pipeline Vibration Control

Price Negotiable
Price: Price Negotiable
MOQ: 1 set
Delivery Time: After payment 15-30 working days
Brand: liwei
Product Description
Product Overview
Double sphere rubber expansion joint with seal full face hand wrap limited tie rod. This flexible rubber bellow joint consists of outer rubber, inner rubber, framework layer, reinforcing bar, and flange. Utilizing rubber's special properties including long-range elasticity, air impermeability, medium resistance, climate resistance, and radiation resistance, these expansion couplings effectively reduce pipeline vibration and noise while providing thermal expansion and contraction compensation.
Twin sphere rubber expansion joint installation example Double sphere rubber expansion joint close-up view
Customization Options
Product Structure
  • Inner and outer rubber layers
  • Nylon cord fabric reinforcement
  • Steel wire framework
  • Flange connections
Material Specifications
  • Rubber materials: NR, NBR, SBR, EPDM, FKM (customizable)
  • Flange materials: SS304, SS316, carbon steel, ductile iron (customizable)
Size & Standards
  • Diameter range: DN15 to DN4000
  • Length: Fully customizable
  • Flange color: Customizable
  • Flange standards: DIN, BS, ANSI, JIS, ISO
Custom rubber expansion joint manufacturing process
Technical Parameters
Diameter DN Length Axis Displacement Radial Displacement Deflection Displacement
32-150 mm 165-225 mm 30-50 mm 45 mm ±7.5°
200-400 mm 325-400 mm 35-60 mm Varies Varies
450-3000 mm 400-550 mm 65-85 mm 65-70 mm ±10-12°
Special sizes and lengths available upon request for custom applications.
Key Advantages
  • 36 years of industry experience with expert technical personnel
  • High-quality finishing flange with bright, smooth spherical appearance
  • Professional rubber mixing center with visible real materials
  • Galvanized steel wire and multi-layer nylon cord fabric construction
  • Participated in drafting national standard GB/T26121-2010 for Flexible Rubber Joints
  • Utility model patent for flexible rubber joint (Patent number: 032418558)
Rubber expansion joint quality inspection Double sphere rubber joint industrial application
Frequently Asked Questions
Q1: Are you a trading company or manufacturer?
A: We are a professional manufacturer with direct production capabilities.
Q2: How can you guarantee the quality or any warranty?
A2: If any quality problems occur during use, all products can be returned or handled according to consumer requests.
Q3: Can I visit your factory before placing an order?
A3: Yes, we welcome customers to visit our factory to verify product quality.
Q4: Do you have a product catalog?
A: Yes, we maintain a comprehensive product catalog. Please provide your email or instant messenger details for delivery.
Q5: What are the packaging details for the Double Sphere Flexible Rubber Joint?
A5: Each double sphere flexible rubber joint is carefully packaged with an inner plastic film and outer wooden case to ensure protection during shipping. For multiple compensators in one case, a steel frame secures them.

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

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