Von Duprin 8847F-3FT Fire Rated Concealed Vertical Rod Exit Device Wide Stile 36" Less Dogging

Von Duprin 8847F-3FT Fire Rated Concealed Vertical Rod Exit Device Wide Stile 36" Less Dogging

Commercial-Grade Fire-Rated Concealed Vertical Rod Exit Solution for Wide Stile Double Metal Doors

The Von Duprin 8847F-3FT is a fire-rated concealed vertical rod exit device engineered for 8'x8' (2438 mm x 2438 mm) double metal doors requiring dependable, code-compliant egress. Designed for wide stile applications, this 36" crossbar device accommodates door stiles as narrow as 4-3/4" (121 mm) and features a 3/4" latch throw with a 1-3/4" door thickness compatibility. Certified to ANSI/BHMA A156.3 2008 Grade 1 and UL listed for 3-hour fire rating under ANSI/UL 10C, this device delivers the reliability and compliance demanded by commercial facilities. The Less Dogging configuration and non-handed design simplify specification and installation across a wide range of openings.

Professional Features & Benefits

• Fire-Rated Performance: UL listed for 3-hour fire rating per ANSI/UL 10C and CAN/ULC-S104, ensuring compliance with fire egress requirements on double metal door applications.
• Wide Stile Compatibility: Fits door stiles as narrow as 4-3/4" (121 mm), making it suitable for a broad range of wide stile commercial door configurations.
• 36" Crossbar Size: Available in 3' length and field sizeable for single and double door applications, providing installation flexibility across varying opening widths.
• 3/4" Latch Throw: Provides secure latching engagement with a 3/4" latch throw for reliable door retention in high-traffic commercial environments.
• 1-3/4" Door Thickness: Engineered for standard commercial door thickness of 1-3/4", ensuring proper fit and function without additional modification.
• ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3 2008 Grade 1 standards as well as ANSI/UL 305 and CAN/ULC-S132 for verified commercial-grade performance and durability.
• Non-Handed Design: Non-handed configuration eliminates handing concerns during specification and installation, reducing errors and simplifying inventory management.
• Less Dogging Configuration: Supplied without dogging hardware, appropriate for fire-rated openings where dogging is not permitted per code requirements.
• Concealed Vertical Rod (47 Series) Device Type: Concealed rod design provides a clean aesthetic while delivering reliable top and bottom latching for double door applications.
• Expandable Options: Compatible with E8875 electrified option for access control or fire alarm integration, RX monitoring switch, and KN knurling for tactile hazard indication on crossbars.
• All Mounting Fasteners Included: Ships complete with all necessary mounting fasteners for straightforward installation.

Technical Specifications

• Product Group: Exit Devices and Trim
• Series: 88 Series
• Grade: Grade 1
• Device Centerline: 39-13/16"
• Fasteners: All necessary mounting fasteners are 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
• Stile Type: Wide Stile
• Wood Door Compatible: No
• Door Hand Direction: Non-Handed
• Door Thickness Range: 1-3/4"
• Product Size: 36"
• Dogging Configuration: Less Dogging
• Fire Rating: Yes
• Product Style: Cross Bars
• Product Category: Exit Devices and Trim
• Department: Door Hardware

Professional Applications

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

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are engineered to meet the most demanding commercial egress requirements, with ANSI/BHMA A156.3 2008 Grade 1 certification and UL listing for 3-hour fire-rated performance under ANSI/UL 10C and CAN/ULC-S104. The 88 Series wide stile crossbar design accommodates door stiles as narrow as 4-3/4" (121 mm) and ships complete with all necessary mounting fasteners for professional installation. Trusted across commercial, institutional, and industrial applications, Von Duprin exit devices deliver the code compliance and long-term reliability that facility managers and security professionals depend on.