Rubber Expansion Joints

Non-metallic expansion joints have been used in place of the traditional all-metal expansion joints to solve problems caused by the thermal and mechanical stresses generated in complex systems. Even though the power generation industry is a main user of rubber expansion joints, the product was found acceptable in many other industries.

​

Three reasons to use rubber expansion joints:

1. To prevent stresses due to expansion and contraction

2. To insulate against the transfer of noise

3. To compensate for misalignment

​

Features:

• Large movement potential: the non-metallic expansion joint offers multi-plane movements in a shorter face-to-face dimension.

• Corrosion resistance: the ability of various rubbers and plastics to stand up to corrosive chemicals can extend the life of an expansion joint.

• Sound and vibration elimination: the outstanding vibration and sound attenuation characteristics of elastomers help prevent premature system degradation.

• Ability to stand up to high temperatures: with the use of special materials, non-metallic expansion joints can withstand over 1000°F operating temperatures.

 

Benefits:

• Lower systems design costs

• Low material costs

• No gaskets required

• Lower replacement costs

​

Rubber expansion joints also effectively confront these problems:

• Vibration

• Noise

• Shock

• Corrosion

• Electrolysis

• Induced Forces

​

Warning:
Expansion joints may operate in pipelines or equipment carrying fluids and/or gases at elevated temperatures and pressures. Precaution should be taken to insure proper installation and regular inspection. Care is required to protect personnel in the event of leakage or splash.