How does temperature affect the life and performance of a Lift Support or Damper?
Temperature affects Lift Supports in two ways, output force change and increased susceptibility to gas loss.
As the temperature of the Lift Support changes, the internal pressure changes according to the relationship P1/T1 = P2/T2. Therefore, as the temperature increases, so does the internal pressure. As the internal pressure increases, so does the output force. For every 10C (18F) change in temperature, the output force changes 3.5 percent.
Very high or very low temperatures can adversely affect the Lift Support's ability to retain its gas charge. At very high temperatures, the permeability of rubber increases and the gas molecules may diffuse through the seal more quickly. Additionally, rubber compounds may begin to soften at elevated temperatures and lose their ability to seal properly. At very low temperatures, rubber compounds may stiffen and also lose their ability to seal properly. AVM's patented multi-lobe seal design and proprietary rubber compound help to minimize problems at temperature extremes.
Within their specified range, Dampers are unaffected by temperature except for an increase or decrease in damping forces as the temperature rises and falls.