Coal Prep Plant Components Sieve Screen Hold Down Bar More Info? Sieve Hold Down Bar (left) used to secure curved metal sieve screens, made of 1 inch thick Polyurethane, usually ordered with 2″ X 6″ wedges (below) Coal Filter Segment Seals Peterson Filter Large Bell Cup (9805-U) Eimco Filter Segment Seal Coal Spiral Parts 225965 Hopper 220212 Male Female Ell 220257 Female Ell 220597 Female Ell 230365 Male-Female Ell 230183 Male Female Ell