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Von Duprin KR4954 - Keyed Removable Steel Mullion
Mullions
Removable steel mullions provide single door performance in double door openings with rim devices. Mullions are easily removed by loosening bottom set screw and removing top fitting cover. The top mullion fitting is attached to the frame and is concealed by the fitting cover. Steel mullions are 2" (51mm) wide and 3" (76mm) deep, with a wall thickness of 1 /8" (3mm).
Mullions are shipped with mounting screws and prepared for strikes. Strikes are not included except where indicated. Steel mullions are available in SP28 and SP313 finishes.
KR – Keyed removable steel mullions makes removal faster and easier by a single operation of the Mortise cylinder. Once mullion is removed, large equipment or furniture can freely pass through the opening. The unit will self lock when re-installed, without use of the cylinder key. Uses a 1 1/4" Mortise cylinder with a straight cam (Schlage cam reference B502-191). Cylinders are sold separately. Prefix mullion model with “KR”
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 1 unit
- Maximum Purchase:
- 5 units
- Product Group:
- Exit Devices and Trim
- Series:
- KR4954
- Grade:
- Grade 1
- Product Subgroup:
- Parts and Accessories
- Subcategory:
- Parts and Accessories
- Product Type:
- Exit Devices Parts
- Commercial/Residential:
- Commercial
- Parts and Accessories Type:
- Installation Accessories
- Product Attribute:
- Parts and Accessories
- Fire Rating:
- No
- Product Category:
- Exit Devices and Trim
Von Duprin KR4594 7 FT 6 IN SP28 – Frequently Asked Questions
1) What is the Von Duprin KR4954 keyed removable mullion used for?
The KR4954 is a steel mullion that provides structural support between double doors while allowing authorized removal with a key. It's commonly used in commercial applications where occasional wide opening access is needed while maintaining security.
2) Which Von Duprin exit devices is this mullion compatible with?
This mullion works with Von Duprin exit devices designed for double door applications. Verify compatibility with your specific exit device model and door configuration before ordering.
3) How is the keyed removal feature operated?
The mullion can be unlocked and removed using the provided key mechanism. This allows the mullion to be taken out when full width access is needed, then reinstalled when standard operation is required.
4) What finish options are available for the KR4954?
Contact us to confirm available finishes for this steel mullion. Von Duprin typically offers finishes to match their exit device hardware lines.
5) What are the structural requirements for this mullion?
Steel construction provides robust structural support. Verify door weight capacity and frame requirements with manufacturer specifications. Proper installation requires adequate floor and header attachment points.
6) Does this mullion meet fire and building code requirements?
Von Duprin mullions are designed to work with code-compliant exit systems. Confirm specific fire rating and ADA compliance requirements with local code officials for your installation.
7) What hardware components are included with the KR4954?
The mullion includes the steel post, keyed removal mechanism, and necessary mounting hardware. Check specification sheet for complete component list and any required field-supplied items.
8) What are the basic installation requirements?
Installation requires secure mounting to floor and header. Follow Von Duprin installation templates for proper positioning. Coordinate with door frame preparation and exit device installation.
9) How do I maintain the keyed removal mechanism?
Keep the key mechanism clean and lubricated per Von Duprin maintenance guidelines. Test removal and reinstallation periodically to ensure smooth operation. Inspect mounting points for secure attachment.
10) Are there other Von Duprin mullion options available?
Von Duprin offers various mullion configurations including fixed, removable, and surface-mounted options. Browse our Von Duprin collection for alternative models that may suit your application.
11) What field conditions affect mullion installation?
Consider floor conditions, header structure, and door alignment. Uneven floors may require shimming. Ensure adequate clearance for mullion removal path when key operation is needed.
How fast can I get the Von Duprin KR4594 7 FT 6 IN SP28 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Von Duprin KR4594 7 FT 6 IN SP28 come with a warranty?
Absolutely. The Von Duprin KR4594 7 FT 6 IN SP28 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Von Duprin KR4594 7 FT 6 IN SP28?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
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Why buy the Von Duprin KR4594 7 FT 6 IN SP28 from ZenSupply?
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and
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