In fact, there are some specific reasons why these filters fail prematurely. Improper Preload - When preloading a new filter, it is important to restrict the air flow of the collector.
Restriction reduces the air velocity and thus the impact and penetration of the preload dust.
This prevents back-pause clearing of the contaminant. Restriction Of Air During Preload - Provide a blast gate, fan damper or other means of restriction. The in-plant processes must be monitored and maintained to assure that the air stream to the collector is free of oil ands moisture.