Should Pressure Rating for Suspension Enhancement Air Bag Increase When Load is Put on Trailer

Question:

On your QandA, someone asked if the maximum 100 psi was before or after applying a load. Your response was: Actually 100 psi in the Air Lift kit part # AL88299 will be the same amount of air pressure regardless if the truck is loaded or unloaded. It may seem counter-intuitive but air pressure does not change in the bags when a load is put in the truck. If the air pressure did change that would indicate that the bags are being overloaded. I dont understand this response, because I put 10 psi in my air lift 5000s and when I hook up my trailer, the psi increases to about 28 lbs. This is not due to being overloaded. Its just a matter of physics. If you increase the load, you have to increase the pressure. Like squeezing a balloon. The more pressure you apply, the higher the pressure. Please explain your response. Maybe I just dont get it. Thank you.

asked by: Tom M

Expert Reply:

I spoke with my contact at Air Lift and this is the what they told me:

Yes, think of it as a balloon. If you were to sit on it the psi would spike. Always measure the loaded psi while sitting at rest. the pressure will fluctuate as you travel down the road.

expert reply by: Jameson C