FEECO’s leaf seals are designed to minimize air leakage into a rotary dryer or rotary kiln. We offer both single and double leaf seals.
The single leaf seal consists of a series of overlapping spring steel plates that are mounted to the housing and ride on a wear ring on the drum shell. They are the seal of choice when it comes to minimizing air leakage into the drum, and have a relative leakage of 1.0.
The double leaf seal, also known as purged leaf seal, is a variation of the single leaf seal. It is reserved for situations where even less leakage can be tolerated than what the single leaf seal allows. The double leaf seal is comprised of two single leaf seals with a ceramic fiber blanket packed in between the two leaves. Leakage consists of about 25% of a single leaf.
Quality leaf seals are important to a dryer or kiln’s design, as limiting leakage can help reduce fuel consumption and result in capacity increase.
If your seals are in need of replacing, contact FEECO’s Customer Service Engineering team today. We look forward to quoting your needs.