Product Overview The Middle Atlantic VBK-BGR is a magnetized vent blocker kit designed for BGR Series enclosures to prevent hot air recirculation in active thermal management setups. When top-mounted exhaust fans are in use, unblocked vent openings allow heated air to re-enter the enclosure rather than exhaust properly — the VBK-BGR eliminates this short-circuit effect. Each kit is sized specifically for BGR enclosures, covering upper front vents, side vents, and rear door vents as needed without trimming. This BGR vent blocker is an essential accessory for rack cooling optimization in any installation relying on active fan-based airflow. Product Description Proper thermal management in AV rack enclosures depends on controlled airflow — exhaust fans must draw air through the equipment and out the top, not pull it back in through nearby vents. The Middle Atlantic VBK-BGR vent blocker kit is engineered specifically for BGR Series rack enclosures, using a magnetized design that attaches securely to the enclosure's steel panels without tools or fasteners. Placement at the upper front vents, upper side openings, and upper rear door seals off recirculation paths, forcing heated air through the top-mounted fans as intended. This improves the efficiency of any active cooling system in the BGR enclosure, protecting sensitive AV components from heat-related failures. The kits ship ready to install with all necessary pieces included, sized to fit BGR Series vent openings precisely. No field trimming is required, making the installation fast and repeatable across multiple enclosure deployments. The magnetized attachment also allows the vent blockers to be repositioned or removed when accessing the enclosure for maintenance. For integrators specifying BGR Series racks in permanent installations, the VBK-BGR is a low-cost measure that significantly improves thermal performance and equipment longevity. Key Features Magnetized Attachment — Attaches securely to BGR enclosure steel panels without tools, fasteners, or adhesive for quick and clean installation. BGR-Specific Sizing — Pre-sized for BGR Series enclosure vent openings, eliminating the need for field trimming during installation. Prevents Hot Air Recirculation — Blocks airflow short circuits that occur when exhaust fan draw pulls heated air back in through nearby vent openings. Supports Active Thermal Management — Works in conjunction with top-mounted exhaust fans to maintain proper directional airflow through the enclosure. Complete Kit — Includes all pieces needed to block upper front, upper side, and upper rear door vents as required by the installation. Repositionable — Magnetic design allows vent blockers to be moved or removed for maintenance access without damage to the enclosure. Technical Specifications Specification Value Model VBK-BGR Compatible Enclosure Series BGR Series Attachment Method Magnetic Installation Tool-free, no trimming required Application Hot air recirculation prevention Brand Middle Atlantic
