Rubber Expansion Joint

Clamp Type Rubber Expansion Ball Joint

1"-64".
Clamp Type Rubber Expansion Ball Joint is a spherical flexible compensator adopting clamp connection instead of traditional flange connection. The rubber body is reinforced with multi-layer nylon cord fabric, featuring high elasticity, reliable sealing and good medium resistance. It compensates thermal expansion, pipe misalignment and multi-directional movement, isolates vibration from pumps and equipment, and reduces transmitted noise. Stainless steel clamps enable quick assembly and disassembly without flange welding or bolt alignment. Multiple rubber compounds are optional to fit fresh water, sewage, seawater, oil and weak corrosive fluid. It is ideal for limited-space piping, HVAC, water treatment, marine and temporary pipeline projects.
Delivery
EXW,CIF,CFR,DAP.FOB
minimum order
1 piece
Supply Ability
100piece / Day
Country of Origin
China
Stock Time
10-15Day
Quantity:
US $1.00 - US $999.00 / piece
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Clamp Type Rubber Expansion Ball Joint, also called clamp-on rubber flexible joint, is a flangeless spherical rubber compensator connected by high-strength stainless steel clamps. It serves as an ideal substitute for traditional flanged rubber expansion joints, especially for piping systems with limited installation space or frequent disassembly demands.

The rubber sphere is reinforced with multi-layer high-tensile nylon cord fabric and compounded with rubber layers. Available rubber materials include EPDM, NBR, Neoprene (CR), NR and Hypalon, which are compatible with water, sewage, seawater, oil and mildly corrosive liquids. The rubber body boasts great elasticity, reliable sealing, outstanding aging resistance and superior vibration damping performance.

This joint can absorb axial extension and compression, lateral offset as well as angular deflection caused by thermal expansion, foundation settlement and installation misalignment. It efficiently isolates vibration transferred from pumps, fans and other rotating equipment to pipelines and reduces fluid noise inside pipes, protecting valves, meters and pipe fittings against vibration damage.

Different from flanged rubber joints, this clamp type design removes flanges and bolt holes. No flange welding, bolt hole alignment or extra gaskets are needed during installation. Stainless steel clamps allow fast on-site assembly and disassembly, cutting construction time and simplifying inspection and replacement. Light weight and compact dimension make it perfect for narrow pipe compartments and temporary pipeline connections.

Manufactured in compliance with EJMA standards and relevant piping specifications. Every joint passes air tightness and pressure tests before shipment. It is widely used in water supply and drainage, HVAC, water treatment, marine piping, mining, food processing and industrial circulating water systems.


Main Technical Features

  • Flangeless clamp connection for quick installation and easy maintenance
  • Capable of multi-directional displacement compensation: axial, lateral, angular
  • Excellent vibration isolation and noise reduction performance
  • Various rubber material options for different media
  • Compact structure, suitable for confined installation space
  • Reliable sealing, good anti-aging and weather resistance
  • No welding required on pipe ends

Application Scope

Water supply and drainage systems, HVAC chilled and hot water pipelines, pump inlet & outlet connections, sewage treatment, marine service piping, industrial circulating water, fire protection pipelines and temporary pipeline projects.