They are ideal wherever cross ventilation is needed to satisfy IAQ requirements, and are highly effective for facilities with metal finishing, steel processing and similar operations.
Dampers are custom-fabricated from polypropylene, a resilient sustainable polymer with high flexural strength, and high moisture and chemical resistance.
Dampers are flanged, and can be mounted to a wall, allowing entry and exit, or flanged to a duct system.
Dampers can be set-up for manual activation, or fitted with electronic or pneumatic actuators to control the blade positions. Units mount easily to exhaust blowers.
Because Tri-Mer ventilation dampers are constructed of homogeneous, high-strength polypropylene, they resist mechanical damage. Unlike coated steel dampers, these dampers are corrosive-free. In contrast with fiberglass units, they will not delaminate, even after decades of service.