Product Info: Product Presentations Product Literature Locate Distributors About McKeon Fire & Smoke Rated Doors and Shutters with emergency egress: Vertical Coiling Vertical Acting Side Coiling Side Acting Accordion Doors without emergency egress: Horizontal Shutters Side Coiling Overhead Coiling Insulated Acoustical Counter Shutters The Retrofit Option for Rolling Fire Doors McKeon has UL Classification and FM Approval to retrofit most existing rolling fire doors, regardless of original manufacturer... MORE INFORMATION Non Fire-Rated Service Doors & Grilles Self-Opening Vertical Self-Opening, Side Coil Side Coil Doors & Grilles Service Doors Perforated Doors Insulated Doors Hurricane Doors Security Grilles Counter Shutters Horizontal Coiling Doors Self-Opening Security Grilles with Emergency Egress Side Coiling Models G4000 & G4500 Overview • Photos • G4000 Series Downloads (PDF, Specs & Details - DWG - CAD files) System Description: Self-Opening Security Grilles with Emergency Egress models G4000 & G4500 are side coiling. These units are intended for use where both security and egress are issues. In the event of an emergency, power failure, activation of a facility's fire alarm system or smoke detection system, the security grilles move to the fully open position. This is accomplished without the use of electricity or battery back up systems. In the emergency mode these units provide for the clear egress path which is required. In the non-emergency mode, these units provide for the required security. For higher occupancy loads the G4500 is recommended due to the use of integral swinging egress doors. System Advantages: Self-Opening Grilles provide designers the flexibility of securing large openings while still providing emergency egress. Design Alternatives: The Self-Opening Grille eliminates the illegal use of security gates. It also eliminates the need for unsightly swinging door frames. Applications: These units provide a safe, efficient and economical means to solve the emergency egress versus security problem. They are ideal for schools, hospitals, office buildings and airport applications. G4500 in the closing position... G4500 in the fully closed position while still allowing for Emergency Egress  G4000 in the fully closed and secure position This product is covered under US Patents: 5,203,392 - 5,245,879 - 5,386,891 - 5,542,460 - 5,605,185 - 5,673,514 - 5,893,234 - 5,355,741 - 5,743,320