The Brownell High-flow Relief Valve protects containers and sealed enclosures from rapid pressure variations, allowing for movement of large amounts of air in a short period of time.
Made from aluminium alloy with a black anodised protected finish, this double differential relief valve opens by 0.5 PSI (inward and outward) and has a recommended wall thickness of 3-50mm and wall bore of 111.0-112.0mm in diameter.
The included HEPA filter exceeds ISO 8 cleanliness requirements and provides allergen, virus and aerosol filtration at 99.9% and particle filtration at 99.5% at 0.003µm.