Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Dampers - Round Industrial Dampers: Model:ICBL-R Round Blast Damper APPLICATION The ICBL-R is designed for protection against sudden blasts and instantaneous pressure changes. ICBL-R DOCUMENTS - Submittal Sheet - ICBL-R (Arrangement 1) BIM (REVIT) - ICBL-R (Arrangement 2) BIM (REVIT) - Bearing Chart - Actuator Sizing Chart Drop Plenum Diffusers Balancing / Regulating Dampers UV Products Iris Dampers Louvers Dampers UL Listed Dampers Roof Curbs and Rails Sunshades Architectural Grilles Ventilators Doors Actuators Fans Air Measuring Products VAV Terminals Security Bars & Grilles Plenums Duct Take-Offs Custom Work Manufacturer Cross Referencing System View Now Previous Next