Von Duprin 3327AF-4ft Fire Rated Surface Vertical Rod Exit Device, Grooved Case Narrow Stile, Less Dogging

Von Duprin 3327AF-4ft Fire Rated Surface Vertical Rod Exit Device, Grooved Case Narrow Stile, Less Dogging

Commercial-Grade Fire Rated Surface Vertical Rod Exit Device for Narrow Stile Doors

The Von Duprin 3327AF-4ft is a fire rated, surface-mounted vertical rod exit device from the 33A/35A Series, engineered for demanding institutional applications including schools, hospitals, and government buildings. Featuring a distinctive grooved mechanism case and narrow stile compatibility down to 1-3/4" (44mm), this device is ANSI/BHMA A156.3 2014 Grade 1 certified and UL listed under ANSI/UL 10C for fire-rated panic exit hardware. The 4 ft (48") unit is non-handed for flexible installation on single and double doors, and is supplied with 1-3/4" and 2-1/4" wood/metal door fasteners including SNB.

Professional Features & Benefits

• Narrow Stile Compatibility: Fits door stiles as narrow as 1-3/4" (44mm), making it ideal for aluminum-framed and narrow stile commercial door applications.
• Fire Rated Construction: ANSI/UL 10C and CAN/ULC-S104 fire-rated certification ensures compliance with fire egress code requirements for rated openings.
• Grade 1 Certified Performance: ANSI/BHMA A156.3 2014 Grade 1 certified for the highest level of commercial durability and reliability in high-traffic institutional environments.
• Grooved Mechanism Case Design: The 3327A features a grooved case profile, providing a distinctive architectural aesthetic that differentiates it from the smooth-case 3527A Series.
• One-Piece Center Case Cover: Newly designed one-piece center case cover simplifies the device profile and contributes to long-term structural integrity.
• Non-Handed Configuration: Surface vertical rod device is non-handed (except when SS signal switch option is used), reducing inventory requirements and simplifying installation logistics.
• Comprehensive Fastener Package Included: Ships with 1-3/4" and 2-1/4" wood/metal door fasteners and SNB for straightforward installation on a variety of door constructions.
• Field-Configurable & Retrofit-Ready: A variety of field-configurable options and retrofit kits are available, including CDSI/HDSI security dogging indicators, QEL electronic latch retraction, and RX/LX electronic switches for access control integration.
• ADA & Delayed Egress Upgrade Paths: AX option meets 5 lb. force ADA requirements (2010 ADA Chapters 404.2.7 and 30934; 2013 California Building Code Chapter 11B-309.4); CX/CHEXIT option meets NFPA and IBC delayed egress requirements with 15-second hold 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: Surface Vertical Rod Exit Devices
• Latch Throw: 3/4"
• Product Type: Exit Devices - Surface 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 Compliance

Why Choose Von Duprin Quality?

Von Duprin surface vertical rod exit devices are engineered to the highest industry standards, with the 3327A Series earning ANSI/BHMA A156.3 2014 Grade 1 certification and dual fire-rated listings under ANSI/UL 10C and CAN/ULC-S104 for dependable performance on rated openings. The 33A/35A Series has been trusted in schools, hospitals, and government facilities where heavy-duty, institutional-grade hardware is essential. With a broad range of field-configurable options, retrofit kits, and compatible trim, Von Duprin delivers the flexibility and long-term reliability that demanding commercial applications require.