Custom-designed 18" diameter positive & negative pressure relief dampers
Custom-designed 18" diameter positive & negative pressure relief dampers sit atop aeration tank covers at Bay Park Waste Water Treatment facility in Long Island, NY. The 316-grade stainless steel counterweight assembly allows the damper blade to open, thereby relieving any build-up of pressure or vacuum in the tanks. The extended length of the damper spool piece ensures that moderate snow accumulation will not affect the counterweight mechanism from operating properly.
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