How does the impactor work when there is a build-up of particulates (in a conical shaped pyramid)?
When the build-up of particulates form a shaped pyramid, it will not measure appropriately. This is the indicator to clean the impactor. The reason: As with any impactor-type filter, this filter relies on the larger particles being unable to “turn the corner”, striking the greased-plate and being filtered out of the stream. As the pyramid builds up more and more, particles will begin to gently slide on past the impactor plate. We provide a fourth inlet which can be connected to a cyclone if extreme environments and/or longer run-times are needed. NOTE: the impactors are designed to work correctly ONLY at 1.67 lpm.
