Does your air conditioning system malfunction specially during a hot summer's day? Your car probably has a broken vacuum element. Vacuum elements play a special part in maintaining the function of your A/C system. Its job is to regulate the fresh air recirculator flap that lets fresh air into the A/C system for better and cleaner interior ventilation. Vacuum elements usually malfunction once the diaphragms break due to pressurized air. Once the rubber diaphragms leak, the central air ventilation won't work rendering the entire A/C system useless. Choosing the best vacuum element replacement is easy, as long as you know the 5 must-have features for vacuum elements.
Durable rubber diaphragms
Because the rubber diaphragms are usually the ones that get broken first, it would be reasonable to look for durable and leak-resistant rubber diaphragms. One of the most durable rubber materials available in the market is polymer-based rubber. Polymer-based composite rubber diaphragms do not easily break, and can contain pressurized air without leaking. This kind of rubber can last from 5 to 7 years until it leaks due to constant pressure.
Critical sealing tolerance
An important aspect of vacuum elements is its sealing tolerance which determines its ability to control fresh air circulation for your car's A/C system. Aside from being durable, rubber diaphragms should also have thin walls made from Viton, Nitrile, EDPM or Silicone material. Aside from added sealing tolerance, thin-walled rubber diaphragms make it easy for the spring mechanism to work as well.
The best vacuum element manufacturers are confident on the quality of their product, so a longer warranty would not be a problem to them. When choosing the right vacuum element for your car, look for brands that give you the longest warranty deals usually ranging from 9 to 12 months of limited warranty.