How often does the carbon molecular sieve (CMS) need to be replaced?
The carbon molecular sieve material is extruded from carbonized coconut shells and represents a very hard and durable form of carbon with an exceptionally high propensity for separating compressed air into pure nitrogen product. The CMS material literally has an indefinite life. And like membrane fibers, it too requires protection from compressor oil carry-over. The filtration system in both the PSA and membrane unit is designed to prevent hydrocarbons (especially water vapor) from coming in contact with the CMS material and membrane fibers. Following the recommended filter changes as prescribed in the Owner’s Manual is very important to a long and productive life for both nitrogen generation systems.
