Rubber expansion joints are flexible connectors primarily used in piping systems to absorb movement, reduce vibration, and compensate for misalignment or thermal expansion. Constructed from layers of high-quality elastomers and reinforced with synthetic fabrics or metal wires, they offer excellent resistance to corrosion, abrasion, and chemicals. These joints effectively dampen noise and relieve stress on pipe flanges, making them essential components in industries such as HVAC, marine, power generation, and water treatment.