A Rubber Expansion Joint is flexible connector fabricated of natural or synthetic elastomers, fluoroplastics and fabrics and, if necessary, with metallic reinforcements used to absorb movements in a piping system while containing pressure and a medium running through it. Macroflex Inc. fabricates custom-made expansion joints for industrial, marine, diesel engine cooling and HVAC markets.

FEATURES OF RUBBER EXPANSION JOINTS

• Absorption of Axial Movements (extension and compression)
  Axial movement is the change in dimensional length of the bellows from its free length in a direction parallel to its longitudinal axis.
• Absorption of Lateral Movements
  Lateral movement is the relative displacement of one end of the bellows to the other end in a direction perpendicular to its longitudinal axis.
• Absorption of Angular and Torsional Movements
  Angular movement is the rotational displacement of the longitudinal axis of the bellows toward a point of rotation. Torsion refers to twisting one end of the bellows with respect to the other end, about the bellows centerline.
• Reduction of Vibration
  Rubber expansion joints isolate or reduce vibration caused by equipment. The transmission of vibration is reduced and they protect equipment from these adverse effects.
• Dampening of Sound Transmission
  Rubber expansion joints tend to dampen transmission of sound because of the steel-rubber interface of joints and mating flanges.

TYPES

• Standard Molded or Custom-Made Molded Expansion Joints
  consisting of high-quality rubber body incorporating floating flanges.
• Spool Type, Flat Rubber Face Custom-Made Expansion joints
  High quality custom-made expansion joints supplied with split or fixed steel backing flanges. The full-face flanges are integral with the body of the joint and drilled to conform the bolt pattern of the companion flanges of the pipe line.
• PTFE Lined Rubber Expansion Joints
  Fluoroplastics possesses unusual and unique characteristics of thermal stability, non-sticking surface, extremely low co-efficient of friction and resistance to practically all corrosive fluids and forms of chemical attack.
• Rubber Pipe and Fittings