Von Duprin 3347AF-4ft Fire Rat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,310.00
$2,539.89
Copy of Von Duprin 3347A-F Series - Fire Rated 3 ft Grooved Case Narrow Stile Concealed Vertical Rod Exit Device, Less Dogging

Von Duprin 3347AF-4ft Fire Rated Concealed Vertical Rod Exit Device, Narrow Stile Grooved Case, Less Dogging

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Model: 3347AEO-F 4 US28
$3,310.00
$2,539.89
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,310.00
$2,539.89
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Von Duprin 3347AF-4ft Fire Rated Concealed Vertical Rod Exit Device, Narrow Stile Grooved Case, Less Dogging

Commercial-Grade Concealed Vertical Rod Exit Device for Narrow Stile Doors

The Von Duprin 3347AF-4ft is a fire-rated, 4-foot concealed vertical rod exit device engineered for narrow stile single and double doors in demanding institutional environments. Featuring a distinctive grooved mechanism case, this device accommodates door stiles as narrow as 2-1/8" (44 mm) for aluminum stiles and as narrow as 4" (102 mm) for wood door stiles, with a 5/8" bottom bolt concealed vertical rod configuration. Certified to ANSI/BHMA A156.3 2014 Grade 1 and UL listed under ANSI/UL 10C for fire-rated applications, the 3347A-F delivers the reliability required for schools, hospitals, and government facilities. The device is non-handed (except when the SS signal switch option is used) and features a one-piece center case cover for streamlined installation and maintenance.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits aluminum door stiles as narrow as 2-1/8" (44 mm) and wood door stiles as narrow as 4" (102 mm), making it ideal for a wide range of commercial door configurations.
  • Concealed Vertical Rod Design: 47-series concealed vertical rod with 5/8" bottom bolt provides a clean, architectural appearance while delivering reliable top and bottom latching for single and double doors.
  • Fire-Rated Construction: Certified to ANSI/UL 10C and CAN/ULC-S104 for fire-rated applications, ensuring compliance with fire and life safety codes where "-F" rated hardware is required.
  • Grade 1 Certified Performance: ANSI/BHMA A156.3 2014 Grade 1 certification and ANSI/UL 305 and CAN/ULC-S132 listings confirm heavy-duty performance for high-traffic institutional applications.
  • Grooved Mechanism Case: The 3347A features a grooved case design (versus the smooth case of the 3547A), providing an architectural distinction suited to specific facility aesthetics and specifications.
  • Non-Handed Configuration: Non-handed design (except when SS signal switch option is used) simplifies inventory management and reduces installation errors across multi-door projects.
  • One-Piece Center Case Cover: Newly designed one-piece center case cover streamlines installation and provides a clean, finished appearance on the door.
  • Field-Configurable Retrofit Options: Compatible with CDSI/HDSI security dogging indicators, QEL electronic latch retraction, and electronic switches (RX request-to-exit, LX latchbolt monitoring) for integration with access control systems.
  • ADA and Delayed Egress Upgrade Paths: AX option available for ADA-compliant 5 lb. force operation per 2010 ADA Chapters 404.2.7 and 30934; CX/CHEXIT option available for NFPA and IBC delayed egress compliance with 15-second delay and nuisance alarm.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 33 & 35 Series
  • Grade: Grade 1
  • Fasteners: Includes 1-3/4" and 2-1/4" wood/metal door fasteners, SNB included
  • Product Subgroup: Exit Devices - Vertical Rod
  • Subcategory: Concealed Vertical Rod Exit Devices
  • Latch Throw: 3/4"
  • Product Type: Exit Devices - Concealed Vertical Rod
  • Commercial/Residential: Commercial
  • Device Centerline from Finished Floor: 39-13/16"
  • Stile Type: Narrow Stile
  • MAP Policy: Yes
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4"
  • Product Size: 48"
  • Product Dimension: 8-3/16" x 1-9/16" x 2-13/32"
  • Fire Rating: Yes
  • Product Projection: 3-13/16"
  • Product Style: Push Pads
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

  • Public and Private Educational Facilities (Schools and Universities)
  • Healthcare Institutions and Hospitals
  • Government and Municipal Buildings
  • Commercial Office Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential and Mixed-Use Properties
  • Retail Establishments Requiring Fire-Rated Egress Hardware

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are engineered to the highest industry standards, with ANSI/BHMA A156.3 2014 Grade 1 certification and UL listings under ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132 confirming performance in the most demanding institutional applications. The 3347A-F Series is purpose-built for high-use and high-abuse environments including schools, hospitals, and government facilities, with field-configurable options and retrofit kit compatibility to keep pace with evolving facility technology needs. When dependable, code-compliant fire-rated egress performance is essential, Von Duprin delivers the professional-grade reliability that commercial door hardware professionals trust.

Manufacturer Resources

Product Specs

Product Group:
Exit Devices and Trim
Series:
33 & 35 Series
Grade:
Grade 1
Fasteners:
Includes 1-3/4" and 2-1/4" wood/metal door fasteners, SNB included
Product Subgroup:
Exit Devices - Vertical Rod
Subcategory:
Concealed Vertical Rod Exit Devices
Latch Throw:
3/4"
Product Type:
Exit Devices - Concealed Vertical Rod
Commercial/Residential:
Commercial
Device Centerline from Finished Floor:
39-13/16"
Stile Type:
Narrow Stile
MAP Policy:
Yes
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4"
Product Size:
48"
Product Dimension:
8-3/16" x 1-9/16" x 2-13/32"
Fire Rating:
Yes
Product Projection:
3-13/16"
Product Style:
Push Pads
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 3347AEO-F 4 US28 – Frequently Asked Questions

1) What is the Von Duprin 3347A F-Series exit device designed for?
The 3347A is a fire-rated concealed vertical rod exit device for narrow stile doors. It provides code-compliant egress while maintaining the door's appearance with concealed vertical rods.
2) What door types and sizes work with the 3347A?
Compatible with narrow stile doors up to 4 feet wide. Designed for aluminum storefront and curtain wall applications. Verify door weight capacity and frame preparation requirements before installation.
3) How do you determine proper door handing for this device?
Handing is determined from the egress side of the door. Right hand has hinges on right, left hand has hinges on left. The 3347A can be field adjusted for most handing configurations.
4) What finishes are available for the F-Series 3347A?
Standard finishes include aluminum, dark bronze, and black. Custom finishes may be available through special order. Consult Von Duprin specifications for complete finish options.
5) What grade rating does this exit device carry?
The 3347A F-Series carries Grade 1 certification per ANSI/BHMA standards. It meets heavy-duty commercial application requirements and provides reliable long-term performance.
6) Which building codes does the 3347A satisfy?
Fire-rated for use in fire door assemblies. Meets IBC, NFPA 101, and ADA accessibility requirements. UL listed for fire door applications. Verify local code requirements with your AHJ.
7) What trim and accessories work with the 3347A?
Compatible with Von Duprin rim cylinder pulls, lever trim, and key override cylinders. Electrical latch retraction options available. Check our Von Duprin section for compatible accessories.
8) What are the basic installation requirements?
Requires precise door preparation and frame coordination. Use manufacturer templates for drilling. Professional installation recommended due to fire rating requirements and narrow stile complexity.
9) How do you maintain and adjust the 3347A device?
Regular cleaning of push pad and lubrication of moving parts extends life. Vertical rod tension is field adjustable. Monitor latch engagement and strike alignment during routine maintenance.
10) What other F-Series models are available?
The F-Series includes surface vertical rod, concealed vertical rod, and mortise versions. Browse our complete exit device collection for similar models and configurations.
11) Can this device be used in high-traffic locations?
Yes, the Grade 1 rating makes it suitable for high-frequency use. The concealed vertical rod design reduces wear points. Consider electric latch retraction for heavy traffic applications.
12) What field conditions affect 3347A performance?
Door alignment is critical for proper vertical rod engagement. Temperature changes can affect narrow stile door fit. Ensure adequate clearances and proper weathersealing to prevent binding.
How fast can I get the Von Duprin 3347AEO-F 4 US28 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 3347AEO-F 4 US28 come with a warranty?
Absolutely. The Von Duprin 3347AEO-F 4 US28 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 3347AEO-F 4 US28?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Von Duprin 3347AEO-F 4 US28 from ZenSupply?
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