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Rubber Expansion Joints

Our rubber joints provide time-tested ways to accommodate pressure loads, relieve movement stresses, reduce noise, isolate vibration, compensate for misalignment after plants go on stream, and prolong the life of motive equipment.  Hand-crafted rubber expansion joints are available in single – and multi-arch designs and are custom-engineered to fit your application requirements.  Available options include PTFE-lined, eccentric reducing, concentric reducing, filled arch, lightweight and off-set configurations.  They can be designed to operate up to 200 psi and withstand temperatures up to 500º F.  Sizes available from 1/2″ to 144″.

Rubber Expansion Joints

Benefits of rubber expansion joints:

  • Economy of minimal face-to-face dimensions
  • Lightweight construction requires no special handling equipment
  • Insulates against the transfer of noise and vibration
  • Compensates for misalignment
  • No electrolysis
  • Greater recovery from movement
  • Ease of Installation
  • Small space requirements
  • Low movement forces required
  • Reduced fatigue factor
  • Reduced heat loss
  • Corrosion and erosion resistant
  • No gaskets required

Superior Performance Characteristics

  • Twice the capabilities of a standard arch
  • Lower spring rates required for movement
  • Fabric and steel reinforced
  • Suitable for pressures up to 200 PSI and vacuum service
  • Available in muti-arch, offset and special constructions

DuPont Kevlar® Reinforced Non-Metallic Expansion Joint

  • Hand wrapped custom built construction to allow for design variations, while still offering wide arch movement
  • Single, double, concentric and eccentric construction available
  • Available in Viton®, EPDM, Butyl, Pure Gum and Nitrile
  • Flanges are laser cut from carbon steel and other available alloys

Spooltype Standard Arch
Style 150spooltype standard arch

  • The heavy duty proven “industry work horse”
  • Time tested performer
  • Fabric and steel reinforced
  • Constructed for maximum strength and reliability
  • Available in multi-arch,taper, offset and special constrictions

Supreme Lightweight Application Design
Style 189supreme lightweight

 

  • Lightweight construction
  • Low spring rate forces
  • Can be built to handle temperatures up to 350ºF
  • Less force to move; allows maximum movements
  • Available in multi-arch, taper, offset and for high temperature applications

High Pressure Capable Supreme
Style 200 (XL)

  • Extra – reinforced carcass
  • For pressures to 300 PSI
  • Available in constructions suitable for temperatures to 400ºF
  • Available in multiple arch, taper, offset and special constructions
  • Available in wide arch for increased movement

Combined Technology PTFE and
Rubber – Dura Perm 

 

  • The excellent chemical resistance of PTFE
  • The flexibility of rubber expansion joints
  • Thermal stability
  • Anti-stick properties
  • Available in multiple arch, taper, offset and special constructions

Mighty-Span Rubber
Flue Duct Compatible

Style 600


Absorb thermal movements and vibration in duct work and aid in the elimination of noises caused by scrubber equipment and mechanical dust collectors.

“Radi-Flex” Elbow
Expansion Joint


  • Designed to reduce noise and vibration
  • Protects against thermal expansion over angles
  • Spiraled steel wire embedded adds strength.
  • Available in 45 deg and 90 deg configurations
  • Flexibility prevents damage

Vibration Absorbing
Styles 2150 & 2250

 

 

 

  • Specially designed lengths of rubber pipe with factory attached ferrules for pipes and other connections involving standard IPT
  • Eliminate vibration between pump and pipe line either for suction or discharge

Vibration and Sound Absorbers
Styles 3150 & 3250

  • Designed with moulded rubber flanged ends with bolt holes that accommodate standard steel flanges
  • Furnished with or without helical wire reinforcement. Special tubes can be compounded to meet unique service conditions in either suction or discharge applications

Unasphere 
Style 800

Maximum deflection, elongation and compression.

  • Minimizes water hammer and hydraulic shock
  • Less force to move; allows maximum movements
  • “All-in-one” design eliminates the need for retaining rings
  • Available in Twin Sphere design for greater movement capabilities
  • Floating flange design provides easy installation

Twin-Sphere Design
Style 802

Allows for greater movement.

  • Available to 20″ Diameter
  • The twin-sphere 802 comes with steel 150lb
  • ASA drilled flanges
  • Floating flanges to provide easy installation
  • Center root ring to meet PSI shown

Spherical Design
Style 803

Designed for smaller pipes

  • Highly capable
  • Low cost
  • Power plants
  • Chemical plants, water works and sewage treatment facilities