Von Duprin 8847F-4FT Fire Rated Wide Stile Concealed Vertical Rod Exit Device, Less Dogging

Von Duprin 8847F-4FT Fire Rated Wide Stile Concealed Vertical Rod Exit Device, Less Dogging

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

The Von Duprin 8847F-4FT is a fire-rated concealed vertical rod exit device engineered for 8' x 8' (2438 mm x 2438 mm) double metal doors in demanding commercial environments. Designed as a wide stile device within the trusted 88 Series, it accommodates door stiles as narrow as 4-3/4" (121 mm) and is available in a 4 ft (48") length that is field sizeable for single and double door applications. UL listed for 3-hour fire rating and certified to ANSI/BHMA A156.3, 2008 Grade 1, this device delivers the reliability and code compliance required for high-traffic commercial facilities.

Professional Features & Benefits

• Wide Stile Compatibility: Designed for wide stile doors with stiles as narrow as 4-3/4" (121 mm), providing versatile installation options across a broad range of commercial door configurations.
• Fire-Rated Performance: UL listed for 3-hour fire rating per ANSI/UL 10C and CAN/ULC-S104, ensuring code-compliant protection in fire-rated door assemblies on double metal doors up to 8' x 8' (2438 mm x 2438 mm).
• Grade 1 Certified Construction: ANSI/BHMA A156.3, 2008 Grade 1 certified for the highest level of commercial durability and performance, meeting the most stringent industry standards.
• Field-Sizeable 4 ft Length: The 48" crossbar is field sizeable to accommodate both single and double door applications, reducing the need for special-order sizing and simplifying installation logistics.
• Concealed Vertical Rod Design: The 47-series concealed vertical rod configuration provides a clean, professional appearance while delivering reliable top and bottom latching for double door applications.
• Less Dogging Configuration: Supplied without dogging hardware, suitable for fire-rated applications where dogging is not permitted per code requirements.
• Comprehensive Certification Compliance: Meets ANSI/BHMA A156.3 (2008 Grade 1), ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132 for broad code acceptance across jurisdictions.
• Expandable with Options: Compatible with E8875 electrified option for access control or fire alarm integration, RX monitoring switch, and KN knurling option for tactile hazard-area identification.

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: 48"
• 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
• Government and Municipal Buildings
• Multi-Tenant Residential Properties

Why Choose Von Duprin Quality?

Von Duprin concealed vertical rod exit devices are built to the highest commercial standards, with the 8847F-4FT earning ANSI/BHMA A156.3, 2008 Grade 1 certification and a 3-hour UL fire rating for dependable performance in life-safety applications. The 88 Series wide stile design accommodates stiles as narrow as 4-3/4" (121 mm) and includes all necessary mounting fasteners, simplifying installation on double metal doors. Engineered for demanding commercial environments where fire-rated code compliance and long-term reliability are essential, Von Duprin delivers the professional-grade performance that facility managers and security professionals trust.