Von Duprin 3347A-3ft Grooved Case Narrow Stile Concealed Vertical Rod Exit Device, 36" Grade 1

Von Duprin 3347A-3ft Grooved Case Narrow Stile Concealed Vertical Rod Exit Device, 36" Grade 1

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

The Von Duprin 3347A-3ft is a 36" grooved case, narrow stile concealed vertical rod exit device engineered for demanding commercial and institutional environments. Designed to fit door stiles as narrow as 2-1/8" (44 mm) for aluminum frames and as narrow as 4" (102 mm) for wood door stiles, this device delivers reliable panic exit performance across single and double door configurations. Certified to ANSI/BHMA A156.3 2014 Grade 1 standards and UL listed for panic exit hardware, the 3347A features a distinctive grooved mechanism case, a one-piece center case cover, and a non-handed design for versatile installation. With a 3/4" latch throw, hex key dogging, and a device centerline height of 39-13/16" from finished floor, this exit device is built to meet the rigorous demands of schools, hospitals, and government facilities.

Professional Features & Benefits

• Narrow Stile Compatibility: Fits door stiles as narrow as 2-1/8" (44 mm) for aluminum frames and 4" (102 mm) for wood door stiles, accommodating a wide range of commercial door configurations.
• 36" Door Coverage: Sized for 36" doors with a product dimension of 8-3/16" x 1-9/16" x 2-13/32" and a product projection of 3-13/16" for precise, low-profile installation.
• ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3 2014 Grade 1 standards, ANSI/UL 305, and CAN/ULC-S132, ensuring compliance with the highest industry performance benchmarks.
• Grooved Mechanism Case Design: The 3347A features a grooved case (versus the smooth case of the 3547A) with a newly designed one-piece center case cover for a refined architectural appearance and structural integrity.
• 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 & Retrofit Kits: Supports a broad range of field-configurable options including CDSI/HDSI security dogging indicators, QEL electronic latch retraction, and electronic switches (RX request-to-exit, LX latchbolt monitoring) for access control integration.
• ADA & 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.
• Comprehensive Fastener Package: Includes 1-3/4" and 2-1/4" wood/metal door fasteners with SNB included for straightforward installation on both wood and metal doors.
• Door Thickness: Designed for 1-3/4" door thickness for standard commercial door applications.

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: 36"
• 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 (Schools and Universities)
• Healthcare Institutions (Hospitals and Clinics)
• Government and Municipal Buildings
• Commercial Office Buildings
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Retail Establishments

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are certified to ANSI/BHMA A156.3 2014 Grade 1 standards and listed under ANSI/UL 305 and CAN/ULC-S132, reflecting a commitment to the highest levels of panic hardware performance and code compliance. The 3347A series is purpose-built for high-use and high-abuse institutional environments — including schools, hospitals, and government facilities — with a robust grooved case construction, one-piece center case cover, and a comprehensive suite of field-configurable retrofit options to keep pace with evolving facility needs. When dependable, code-compliant egress performance is essential, Von Duprin delivers the professional-grade reliability that commercial door hardware professionals trust.