Continuously bleeds off excess internal gas to maintain a safe positive pressure inside glove boxes
Variable release mechanism automatically discharges any sudden surge of incoming gas
Protects against accidental negative pressure by functioning as a check valve
Extends life of doors and gaskets
100% reliable, noncontaminating and maintenance-free! The Automatic RB® Valve ensures a safe, continuous positive pressure in Terra Universal glove boxes, desiccators, and other purged enclosures.