Von Duprin 3347A-4ft Concealed...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,111.00
$2,053.26
Von Duprin 3347A-4ft Concealed Vertical Rod Exit Device 4 ft Smooth Case Narrow Stile Grade 1

Von Duprin 3347A-4ft Concealed Vertical Rod Exit Device 4 ft Smooth Case Narrow Stile Grade 1

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Model: 3347AEO 4 US28
$3,111.00
$2,053.26
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,111.00
$2,053.26
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Von Duprin 3347A-4ft Concealed Vertical Rod Exit Device 4 ft Smooth Case Narrow Stile Grade 1

Heavy-Duty Narrow Stile Concealed Vertical Rod Solution for Commercial and Institutional Applications

The Von Duprin 3347A-4ft is a professional-grade, 4-foot smooth case concealed vertical rod exit device engineered for demanding institutional environments including schools, hospitals, and government buildings. Designed to fit door stiles as narrow as 2-1/8" (44 mm) for metal doors and as narrow as 4" (102 mm) for wood door stiles, this narrow stile device delivers reliable panic exit performance across all types of single and double doors. Certified to ANSI/BHMA A156.3 2014 Grade 1 standards and UL listed for panic exit hardware, the 3347A-4ft features a one-piece center case cover and a non-handed design for versatile installation flexibility.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits door stiles as narrow as 2-1/8" (44 mm) for metal doors and 4" (102 mm) for wood door stiles, accommodating a wide range of commercial door configurations.
  • Concealed Vertical Rod Design (47 Series): Features a 5/8" bottom bolt concealed vertical rod mechanism, maintaining a clean architectural appearance while delivering dependable latching performance.
  • ANSI/BHMA Grade 1 Certified: Certified to ANSI/BHMA A156.3 2014 Grade 1, the highest industry standard, ensuring long-term reliability in high-traffic institutional applications.
  • Comprehensive Certifications: Meets ANSI/UL 10C (fire-rated configurations), ANSI/UL 305, CAN/ULC-S104 (fire-rated configurations), and CAN/ULC-S132 for broad code compliance.
  • Non-Handed Configuration: Non-handed design simplifies specification and installation across a variety of door applications, except when the SS (signal switch) option is selected.
  • Hex Key Dogging: Equipped with hex key dogging for convenient hold-open functionality in appropriate applications.
  • Field-Configurable Options: A variety of field-configurable options and retrofit kits are available, including CDSI/HDSI security dogging indicators, QEL electronic latch retraction, and electronic switches (RX request-to-exit and LX latchbolt monitoring) for access control integration.
  • ADA and Delayed Egress Upgrades Available: AX option certified to meet 5 lb. force requirements per 2010 ADA (Chapters 404.2.7 and 30934) and 2013 California Building Code (Chapter 11B-309.4); CX CHEXIT option meets NFPA and IBC requirements for 15-second delayed egress.
  • Broad Trim and Function Compatibility: Compatible with 360 lever/thumbpiece trim (Classroom, Passage, Dummy functions), 386 pull trim (Storeroom, Dummy), and 388 optional pull trim (Storeroom), providing extensive configuration flexibility.

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"
  • Dogging Configuration: Hex Key Dogging
  • Product Dimension: 8-3/16" x 1-9/16" x 2-13/32"
  • Fire Rating: No
  • Product Projection: 3-13/16"
  • Product Style: Push Pads
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

  • Educational Facilities and Schools
  • Healthcare Institutions and Hospitals
  • Government and Municipal Buildings
  • Commercial Office Buildings
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties

Delayed Egress Compliance

The Von Duprin 3347A-4ft supports the optional CX CHEXIT upgrade, which meets NFPA and IBC requirements for delayed egress applications. This configuration keeps doors secure for 15 seconds after a request to exit while a nuisance alarm sounds, providing code-compliant delayed egress control for facilities requiring enhanced security at exit points.

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are engineered to the highest industry standards, with the 3347A-4ft certified to ANSI/BHMA A156.3 2014 Grade 1 and listed under ANSI/UL 305 for dependable panic exit performance. The 33A/35A Series has been purpose-built for high-use and high-abuse institutional environments including schools, hospitals, and government facilities, with a breadth of field-configurable options and retrofit kits to keep pace with evolving technology. When reliable, code-compliant egress performance is essential, Von Duprin delivers the professional-grade quality that commercial and institutional applications demand.

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"
Dogging Configuration:
Hex Key Dogging
Product Dimension:
8-3/16" x 1-9/16" x 2-13/32"
Fire Rating:
No
Product Projection:
3-13/16"
Product Style:
Push Pads
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 3347AEO 4 US28 – Frequently Asked Questions

1) What is the Von Duprin 3347A Series exit device designed for?
The 3347A Series is a concealed vertical rod exit device designed for narrow stile aluminum storefront doors. It provides secure egress control while maintaining a clean appearance with the vertical rods concealed within the door frame.
2) What door widths and weights are compatible with this device?
This device typically accommodates doors up to 4 feet wide. Always verify door weight capacity with manufacturer specifications and ensure proper door preparation. Check Von Duprin installation templates for exact compatibility requirements.
3) How do I determine the correct handing for installation?
Handing is determined from the secure side of the door. Right hand (RH) means hinges are on the right when viewed from the secure side. Left hand (LH) means hinges are on the left. Specify handing when ordering to ensure proper operation.
4) What finishes are available for the 3347A Series?
Von Duprin exit devices are available in multiple finishes including aluminum, dark bronze, and painted options. Verify specific finish availability for your model number. Choose finishes that match your door hardware and building aesthetic.
5) What grade rating does this exit device carry?
Von Duprin exit devices typically meet Grade 1 commercial requirements per ANSI/BHMA standards. This ensures heavy-duty performance suitable for high-traffic commercial applications. Verify specific grade ratings on your model's documentation.
6) Does this device meet fire and building code requirements?
Von Duprin exit devices are designed to meet IBC and life safety codes. Fire rating depends on door assembly and installation. Always verify local code requirements and consult with your authority having jurisdiction for specific applications.
7) What additional components might I need for installation?
You may need strikes, cylinders, pull handles, and door position switches depending on your application. Check the Von Duprin catalog for compatible accessories. Consider weatherstripping and threshold coordination for exterior doors.
8) What are the basic installation requirements?
Installation requires proper door preparation using Von Duprin templates. Door must be square and properly hung. Vertical rods require precise alignment with top and bottom strikes. Follow manufacturer installation instructions exactly for proper operation.
9) How do I maintain and adjust this exit device?
Regular maintenance includes cleaning pushpads and lubricating moving parts with manufacturer-approved lubricants. Check rod alignment and strike engagement periodically. Adjust latch projection and verify proper retraction during operation.
10) Are there similar Von Duprin models available?
Von Duprin offers various concealed vertical rod models in the 33 Series family. Models vary by door width capacity, case length, and special functions. Browse our Von Duprin collection for compatible alternatives.
11) What field conditions affect installation and operation?
Temperature extremes, humidity, and wind pressure can affect operation. Exterior applications require weather-resistant components and proper sealing. Ensure adequate clearances for thermal expansion and check operation under all expected field conditions.
12) What are the key measurements I need before ordering?
Measure door width, thickness, and height. Note stile width and glass line dimensions. Verify header and floor conditions for rod installation. Check for obstructions in the vertical rod path. Confirm door swing direction and handing requirements.
How fast can I get the Von Duprin 3347AEO 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 4 US28 come with a warranty?
Absolutely. The Von Duprin 3347AEO 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 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 4 US28 from ZenSupply?
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