Good afternoon, all.

I'm looking for a vendor in the US that can supply an odor control seal for an aerated grit removal channel. That channel has a traveling bridge grit removal system and the plant (understandably) wants odor control on these tanks. This is fine except where the traveling bridge equipment needs to pass through the odor control covers. This results in an ~2' wide gap that extends the length of the channel (~110'). The traveling bridge equipment (pipes and supports) is ~12" wide. The objective of this odor control seal is to seal the gap between the covers but allow the traveling bridge equipment to pass through with limited friction and seal again once the equipment has passed.

Options I've found range from bristles (which bend and aren't best at inhibiting air transmission), rubber flaps, and inflated rubber tubes. The latter seems most robust, and the latter two concepts have only been demonstrated in Europe and do not have manufacturers/designers in the good ol' U S of A.

So, any recommendations for a vendor in the US who could supply equipment to do this job? To entice vendors, this is a pretty big job (there are 12 of these 110' long tanks). Please reply promptly as we're wrapping up design soon.

Much appreciated.