Boss Products Fire and Dust explosion protection No Return Valve

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Boss Products fire protection equipment for dust collection systems Call for price and availability No Return Valve with locking mechanism, flanged ends, co-flanges, inspection/acc ess door, grounding lug, and ATEX EN 16447 certification. Designed for clean/return air only. NFPA 652 and 654 compliant when activated by the spark detection system. Installation must respect the minimum distance requirement. Square to round transitions are available. Many different sizes are available up to 75,000 CFM, 60" diameter/square Show more