Von Duprin 9975EOF26D4 Mortise Exit Device Fire Rated

Product Description

The VON DUPRIN 9975EOF26D4 is a fire-rated mortise exit device designed for commercial and institutional door applications requiring code-compliant egress hardware. Built on a grooved case profile in a 4-foot (48-inch) bar length, this device integrates with mortise locksets to provide a complete door security and life-safety function in a single trim package. The 626 satin chrome finish resists corrosion in high-traffic environments. At 17.1 pounds, the unit is engineered for heavy-duty door frames found in schools, hospitals, government buildings, and commercial office facilities. Licensed locksmiths, door hardware specialists, and security contractors typically handle installation and commissioning of this type of hardware.

This exit device is suited for single-door commercial installations where fire-rated egress hardware is required by code. The mortise case design accommodates standard mortise lock prep doors and is appropriate for corridors, stairwells, and other exit paths governed by NFPA 101 life safety requirements. The EOF designation indicates an end of frame application configuration. The 626 satin chrome finish coordinates with common commercial door hardware standards and is specified in many institutional and public building projects.

Key Features

• Fire-rated construction for code-compliant egress applications
• Mortise grooved case integrates with standard mortise lockset prep doors
• 4-foot bar length (48.8 inches) spans standard commercial door widths
• 626 satin chrome finish for durability in high-traffic environments
• End of frame (EOF) configuration for specific door frame conditions
• Sold individually; case quantity of 3 available for project orders

Compatibility

Designed as an OEM-style replacement or new-installation exit device for commercial doors with standard mortise lockset preparation requiring a fire-rated, 4-foot grooved case exit device in a 626 satin chrome finish.

Installation Notes

Installation should be performed by a licensed door hardware specialist or locksmith familiar with NFPA 80 fire door assembly requirements and local building codes. Disengage all electrical connections and verify the door assembly is clear before beginning work. Do not modify the fire label or alter the door assembly in any way that would void the fire rating. Confirm mortise pocket dimensions and door thickness are compatible with this device before mounting.