Which type of rubber makes up the expansion joints?

EPDM is the most commonly used rubber material for expansion joints due to its weather resistance, good gas tightness, thermal stability, low friction, and resistance to corrosive fluids, chemicals, abrasion, and erosion. It is also highly durable and can withstand extreme temperatures, making it an ideal choice for various applications. It is also relatively easy to install and maintain, making it a cost-effective solution for many projects.

What does a rubber expansion joint do?

Rubber expansion joints are flexible connectors that absorb noise, shock, pressure, vibration, physical force, and thermal energy while reducing system strain by relieving stress, vibration, temperature, and noise. They also provide all directional movement, and the control rods reduce wind, shock loading, and seismic signals caused by thermal change, load stress, pumping surges, or construction settlement movement.

How long do rubber expansion joints last?

Rubber expansion joints have an average life span of seven to 10 years.

What is the difference between metal and rubber expansion joints?

Metal expansion joints are more susceptible to fatigue failure due to excessive body movement forces. In contrast, rubber expansion joints are constructed of resilient elastomers that act as a vibration dampener, making them less likely to fail with more significant body movements. Rubber joints also tend to cost more than metal joints.

What are rubber joints used for?

Rubber joints are used in pumps and piping installations to absorb thermal growth, reduce stress during operation and decrease vibration and noise from rotating pumps and equipment. They are also commonly used in HVAC applications to transmit flue gasses and exhaust.

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