Von Duprin KR5428 Keyed Removable Kit 1654 4954 Mullions

Product Description

The VON DUPRIN KR5428 is a keyed removable kit designed for use with 1654 and 4954 mullion assemblies in commercial door hardware applications. This kit allows the mullion to be removed with a key, providing controlled access to double-door openings while maintaining the structural integrity of the exit device system. The KR5428 measures 8.7 inches in length, 3.6 inches wide, and 2.8 inches in height, and ships as a single-unit assembly. It is installed by licensed locksmiths, door hardware specialists, or commercial door contractors working on commercial facilities.

This keyed removable mullion kit is suited for commercial and institutional buildings where double-door openings require a removable center post. Typical applications include schools, hospitals, office buildings, and other public facilities that use Von Duprin 1654 or 4954 series mullions. The 689 aluminum finish provides a clean, corrosion-resistant appearance consistent with standard commercial door hardware aesthetics. It is sold as a single kit assembly.

Key Features

• Keyed removable design allows controlled mullion removal without disassembling the door hardware
• Compatible with 1654 and 4954 series Von Duprin mullions
• 689 aluminum finish for corrosion resistance and a consistent commercial appearance
• Compact unit dimensions: 8.7 inches long, 3.6 inches wide, 2.8 inches tall
• Sold as a complete single-unit kit

Compatibility

Designed for use with Von Duprin 1654 and 4954 series mullions in commercial double-door applications.

Installation Notes

Installation should be performed by a qualified locksmith or commercial door hardware technician familiar with exit device systems. Ensure all door hardware and connected access control circuits are de-energized before beginning installation. Follow applicable local building codes and ANSI/BHMA standards for exit device hardware. Do not modify the mullion assembly or keyed components during installation.