Von Duprin 5547F-4ft Fire Rate...
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Von Duprin 5547F-4ft Fire Rated Narrow Stile Concealed Vertical Rod Exit Device, Less Dogging

Von Duprin 5547F-4ft Fire Rated Narrow Stile Concealed Vertical Rod Exit Device, Less Dogging

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Model: 5547 EO-F US26D-4
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Von Duprin 5547F-4ft Fire Rated Narrow Stile Concealed Vertical Rod Exit Device, Less Dogging

Commercial-Grade Concealed Vertical Rod Exit Device for Narrow Stile Metal Doors

The Von Duprin 5547F-4ft is a fire rated concealed vertical rod exit device from the trusted 55 Series, engineered for single or double metal doors with narrow stile profiles as slim as 1-3/4" (44 mm). Specified for 2-1/4" door applications, this 4-foot (48") device accommodates door heights from 6'8" to 8'0" and is field reversible for flexible handing. Certified to ANSI/BHMA A156.3, 2008 Grade 1 and listed under ANSI/UL 10C for fire-rated installations, the 5547F-4ft delivers dependable life-safety performance in demanding commercial environments. The Less Dogging configuration ensures the latch remains active at all times, supporting fire-rated door compliance.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits door stiles as narrow as 1-3/4" (44 mm), specified for 2-1/4" doors, making it ideal for narrow stile metal door applications where space is at a premium.
  • 4-Foot (48") Device Size: Available in a 48" length that is field sizeable for single and double door applications, providing installation flexibility across a range of opening widths.
  • Door Height Range: Standard device accommodates door heights from 6'8" to 8'0", covering the most common commercial door height specifications.
  • Fire Rated Construction: Certified to ANSI/UL 10C and CAN/ULC-S104 for fire-rated installations, ensuring compliance with life-safety codes on fire-rated door assemblies.
  • Grade 1 Certification: ANSI/BHMA A156.3, 2008 Grade 1 certified along with ANSI/UL 305 and CAN/ULC-S132 listings, confirming the highest level of commercial hardware performance and reliability.
  • Field Reversible Handing: Door hand direction is field reversible, simplifying installation and reducing the need for special-order configurations on-site.
  • Less Dogging Configuration: Supplied without dogging capability to maintain active latch engagement at all times, a requirement for fire-rated door assemblies.
  • Concealed Vertical Rod Design: The 47-series concealed vertical rod mechanism provides a clean aesthetic while delivering secure top and bottom latching for single or double metal doors.
  • Versatile Options Available: Compatible with E8875 electrified option for access control or fire alarm integration, RX door monitoring switch, and KN knurling on crossbars for tactile hazard warning on doors leading to stairs, loading platforms, boiler rooms, and similar areas.
  • Fastener Inclusion: Includes screw pack for 1-1/4" and 2-1/4" thick metal/wood doors for straightforward installation across common door constructions.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 55 Series
  • Grade: Grade 1
  • Fasteners: Screw pack for 1-1/4" and 2-1/4" thick medal/wood doors.
  • Product Subgroup: Exit Devices - Vertical Rod
  • Product Type: Exit Devices - Concealed Vertical Rod
  • Subcategory: Concealed Vertical Rod Exit Devices
  • Latch Throw: 1/2"
  • Commercial/Residential: Commercial
  • Stile Type: Narrow Stile
  • Door Hand Direction: Field Reversible
  • Door Thickness Range: 1-3/4"
  • Product Size: 48"
  • Dogging Configuration: Less Dogging
  • Product Dimension: 7-1/4" x 1-1/4" x 2-1/4" (Hinge Stile Case), 7-1/4" x 1-1/4" x 2-1/4" (Lock Stile Case)
  • Fire Rating: Yes
  • Product Projection: 3-3/4"
  • 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
  • Historical and Retro-Inspired Architecture

Why Choose Von Duprin Quality?

Von Duprin 55 Series concealed vertical rod exit devices are built to the highest commercial standards, earning ANSI/BHMA A156.3, 2008 Grade 1 certification and UL listings under ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132. The 5547F-4ft features a field-reversible design, a 48" field-sizeable crossbar, and case dimensions of 7-1/4" x 1-1/4" x 2-1/4" engineered for narrow stile metal doors in demanding commercial applications. Trusted by architects, contractors, and facility managers, Von Duprin exit devices deliver the dependable life-safety performance required in high-traffic commercial environments.

Manufacturer Resources

Von Duprin 55 Series Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
55 Series
Grade:
Grade 1
Fasteners:
Screw pack for 1-1/4" and 2-1/4" thick medal/wood doors.
Product Subgroup:
Exit Devices - Vertical Rod
Product Type:
Exit Devices - Concealed Vertical Rod
Subcategory:
Concealed Vertical Rod Exit Devices
Latch Throw:
1/2"
Commercial/Residential:
Commercial
Stile Type:
Narrow Stile
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Size:
48"
Dogging Configuration:
Less Dogging
Product Dimension:
7-1/4" x 1-1/4" x 2-1/4" (Hinge Stile Case), 7-1/4" x 1-1/4" x 2-1/4" (Lock Stile Case)
Fire Rating:
Yes
Product Projection:
3-3/4"
Product Style:
Cross Bars
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Parts & Accessories

    Von Duprin 5547 EO-F US26D-4 – Frequently Asked Questions

    1) Will the Von Duprin 5547F fit a narrow stile aluminum or metal door?
    The 5547F is a narrow stile concealed vertical rod device, built for metal doors with stiles as slim as 1-3/4 inches and specified for 2-1/4 inch door applications. If your stile is wider than that you are not limited to a narrow stile device, but a narrow stile unit still mounts fine. Where it will not work is anything thinner than the 1-3/4 inch stile it needs. Door thickness on record is 1-3/4 inches, and the screw pack shipped with it covers 1-1/4 inch and 2-1/4 inch thick metal or wood doors.
    2) Can the Von Duprin 5547F be dogged down to keep a door push-pull during business hours?
    No. The 5547F-4ft ships less dogging, so the latches stay active at all times. That is deliberate on a fire rated device, since a dogged exit device would defeat the latching a fire rated assembly depends on. If you need a door that can be held in a push-pull state during open hours, you need a non-fire-rated device on a non-rated opening, not this one.
    3) Do I have to order the Von Duprin 5547F handed, or can it be flipped in the field?
    Handing is field reversible on the 5547F, so a unit can be swapped between hands on site. You still pick LHR or RHR when ordering, and the center case and lever arm service parts are hand specific once you are into repairs (for example the 050193 left hand reverse 5547-F center case, or the 050137 and 050139 left and right hand 5547-F lever arm kits). For a new install, the field reversibility means a job with mixed hands does not need two different device orders.
    4) Is the Von Duprin 5547F fire rated and what standards does it carry?
    Fire rated, and listed to ANSI/UL 10C and CAN/ULC-S104 for fire door assemblies. It is also ANSI/BHMA A156.3, 2008 Grade 1 certified with ANSI/UL 305 and CAN/ULC-S132 panic listings. That combination is what a facility spec usually asks for on a rated stair or corridor opening: Grade 1 for the cycle and strength duty, UL 10C for the fire assembly, UL 305 for the panic function.
    5) What narrow stile concealed vertical rod devices are alternatives to the Von Duprin 5547F if I do not need a fire rating?
    On a non-rated narrow stile opening you have more choices. The Corbin Russwin ED4800 and ED7800 are Grade 1 narrow stile concealed vertical rod devices for 1-3/4 inch doors, the ED7800 with a crossbar like the 5547F. Falcon offers the 24-C Series, 1690EO and 1990EO, all Grade 1 narrow stile exit only for 1-3/4 inch doors. The Adams Rite 8600 Series is a Grade 1 narrow stile unit for aluminum doors, and the DORMA 9600BB is a Grade 1 narrow stile pushpad. The Adams Rite 8600, DORMA 9600BB and the Adams Rite 8500 are not fire rated, so none of them substitute on a rated assembly.
    6) What is the closest fire rated narrow stile concealed vertical rod exit device to the Von Duprin 5547F?
    The Corbin Russwin ED7800 is the nearest match in form and application. It is a Grade 1 narrow stile crossbar concealed vertical rod exit device for 1-3/4 inch doors, so it shares the 5547F's crossbar actuation, narrow stile profile and 1-3/4 inch door thickness. The Corbin Russwin ED4800 is also a Grade 1 narrow stile concealed vertical rod device for 1-3/4 inch doors, but it is an exit only device that accepts trim rather than a crossbar-styled unit. The 5547F itself is Grade 1, narrow stile, fire rated, with a 48 inch crossbar and trim functions ranging from exit only to lever and thumb turn.
    7) The opening is a wide stile hollow metal fire door - what concealed vertical rod device fits instead of a narrow stile one?
    The Von Duprin 5547F is built for narrow stile doors, so a wide stile opening calls for a wide stile device. The Adams Rite 3600 Series is a fire rated Grade 1 concealed vertical rod exit device for hollow metal doors in wide stile, and the Adams Rite 3900 Series is a fire rated Grade 1 concealed vertical rod device with a 1-1/2 hour rating, also wide stile. On the crossbar side, the Corbin Russwin ED5800 is a Grade 1 wide stile concealed vertical rod device for 1-3/4 inch doors.
    8) The door needs dogging so it can stay push-pull during business hours - what concealed vertical rod device should I use instead of the 5547F?
    The Von Duprin 5547F is supplied less dogging, which keeps the latch engaged at all times. The Sargent MD8613F-LTRIM is a Grade 1 heavy duty concealed vertical rod exit device for 36 inch by 84 inch metal doors with hex dogging, so it is the unit to look at when the opening is meant to be held unlatched during occupied hours. Confirm the fire rating requirement of the assembly before specifying a dogging device.
    9) Should I use a concealed vertical rod exit device or a rim device on my opening?
    A concealed vertical rod device like the 5547F latches at the head and the threshold with the rods hidden inside the door, so it secures a pair of doors with no center mullion and leaves nothing exposed on the door face. That takes a door prepped for concealed rods, which usually means specifying it with the door. A rim device latches into a strike on the frame or on a mullion and is far easier to retrofit onto an existing door, but on a pair it needs a mullion or a second leaf with a vertical rod. Choose concealed rods when the door is already prepped or being ordered new and appearance matters; choose rim when you are retrofitting a door that has no rod prep.
    10) What trim functions can I get on the Von Duprin 5547F, and which one do I need for outside key access?
    Six trim functions are offered on the 5547F: EO exit only, L lever, L-BE lever with blank escutcheon, TL thumb turn, TL-BE thumb turn with blank escutcheon, and DT dummy trim. Exit only gives no outside operation at all. The lever trims are the ones to specify when someone has to get back in from the outside, and the lever style is chosen separately from 06 (the default on L trims), 03, 07 and 17. The BE versions carry a blank escutcheon where the cylinder is being handled another way.
    11) How far does the Von Duprin 5547F stick out from the door face?
    Projection on the 5547F is 3-3/4 inches, with hinge stile and lock stile cases each measuring 7-1/4 x 1-1/4 x 2-1/4 inches. That projection is what decides clearance in a tight vestibule, against a return wall, or where two door leaves swing past each other, so check it against the swing path before you commit. It is a crossbar style device, not a push pad.
    12) Can I tie the Von Duprin 5547F into an access control system or door monitoring?
    Yes. The RX request to exit switch is an orderable option on the 5547F for monitoring when the crossbar has been pushed, and the device is compatible with the E8875 electrified option for access control or fire alarm integration. Order the RX at time of purchase rather than adding it later, since it is a device level option.
    13) Will the 1/2 inch latch throw on the Von Duprin 5547F engage my existing top and bottom strikes?
    Latch throw on the 5547F is 1/2 inch at the top and bottom latch points. On a concealed rod device the throw only matters against the strike pocket depth at the head and the floor or threshold strike, and 1/2 inch is what the Von Duprin strikes for this device are cut for. If you are reusing strikes from another manufacturer's rod device, measure the pocket depth and the rod alignment before reusing them, because a shallower or misaligned pocket will leave the latch riding the strike instead of dropping in.
    14) I need a matching inactive or pull-side leaf on a pair of doors. What goes on the other leaf?
    Where you want the appearance to match but no exit function on that leaf, the 5547F is offered with DT dummy trim. Across brands, the Falcon 1491DT is a dummy trim narrow stile concealed vertical rod device supplied with a 9970 pull, for 1-3/4 inch doors. Either way, on a rated pair confirm the opening is allowed to have an inactive leaf before specifying dummy trim, since many rated pairs require both leaves to latch.
    15) I only need push to exit with no outside trim on a narrow stile door - is there a simpler concealed vertical rod device than the 5547F?
    Yes. The Falcon 1690EO is a 3 foot Grade 1 narrow stile concealed vertical rod exit device in exit only function for 1-3/4 inch doors, the Falcon 1990EO is the same idea at 44 inches, and the Falcon 24-C Series is a 36 inch Grade 1 narrow stile exit only concealed vertical rod device for 1-3/4 inch doors. The BEST Precision 2601 Series is a non-handed narrow stile concealed vertical rod device in exit only. The 5547F covers exit only as one of its trim functions alongside lever, thumb turn and dummy trim, so it is the choice when outside trim is part of the opening.
    16) What concealed vertical rod exit device replaces the 5547F when the door is wood rather than metal?
    The BEST Precision 2701 Series is a wide stile reversible concealed vertical rod exit device for wood doors, and the BEST Precision 2801 Series is a wide stile concealed vertical rod device. The Von Duprin 5547F is a narrow stile device whose screw pack covers 1-1/4 inch and 2-1/4 inch thick metal and wood doors, so confirm the stile width of the wood door before choosing between them.
    17) I need a fire rated concealed vertical rod device in classroom function - what are my options next to the 5547F?
    The Sargent 12-MD8613 is a fire rated Grade 1 concealed vertical rod exit device in classroom function on a wide stile door. The Von Duprin 5547F is fire rated and Grade 1 as well, but its outside trim choices are lever, lever with blank escutcheon, thumb turn, thumb turn with blank escutcheon, dummy trim and exit only, on a narrow stile door. If the specification calls out classroom function by name, the Sargent unit is the one written to it.
    18) Is a push pad concealed vertical rod device an equivalent swap for the crossbar 5547F?
    They latch the same way but they are not the same product. The Von Duprin 5547F uses a crossbar and projects 3-3/4 inch from the door face. The CRL Jackson 1285 is a push pad concealed vertical rod panic exit device that suits narrow, medium or wide stile doors, the CRL Jackson 1085 Series is a 48 inch non-handed exit only concealed vertical rod panic device for wide stile, and the DORMA 9100 Series is a Grade 1 wide stile pushpad concealed vertical rod device for 1-3/4 inch to 2-1/4 inch doors. Where a facility is standardizing on one look across its openings, the crossbar and push pad styles will not match each other.
    19) What finishes does the Von Duprin 5547F come in for matching the rest of a building's hardware?
    Eight finishes are offered on the 5547F: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, 643E aged bronze, and 693 black. For a property manager standardizing across a building, 626 satin chrome and 613 oil rubbed bronze are the two that most commonly show up alongside existing commercial lever and closer hardware, so match to the BHMA number already on your other openings rather than to the name.
    20) What is the KN knurled crossbar option on an exit device for?
    KN puts knurling on the crossbar as a tactile hazard warning, which is what code asks for on doors leading to stairs, loading platforms, boiler rooms and similar hazardous areas. Someone who cannot see the sign feels the texture and knows the door is not a normal exit. The 5547F crossbar is also offered standard or as RCB reinforced, which is what to specify on high abuse openings like a school corridor or a loading area.
    21) Can I convert a Von Duprin 5547F to night latch function later, or does it have to be ordered that way?
    Night latch is not one of the trim functions on the 5547F itself, but the 55 Series NL conversion kit, part 050105, exists for converting exit devices in this family, along with the 050184 55NL center case kit and the 050355 and 050356 right and left hand NL cams. That is the path if a door later needs outside key retraction rather than a lever. For a new order, specify the L or L-BE lever trim up front instead, since it is fewer parts and one purchase.
    22) Are replacement parts available for the Von Duprin 5547F, or do I replace the whole device when something fails?
    The 55 Series is fully serviceable at the part level, which matters for an MRO shop standardizing on it. Rods and connectors, latch bolts and springs, center and end cases by hand, the lift member assembly for the 5547-F, crossbar hardware and the 103866 special hex key for maintenance are all available separately. Common wear items include the 050352 rim latch bolt with axle and spring, the 050368 and 050369 top and bottom rod connectors, and the 050370 bottom bracket guide for the 5547. That means a damaged crossbar or a worn rod connector is a parts order, not a device replacement.
    23) Do I have to order handing on a narrow stile concealed vertical rod device, or are there non-handed options?
    The Von Duprin 5547F is field reversible for hand direction, and handing is selected as LHR or RHR when ordering. Among comparable devices, the BEST Precision 2601 Series is non-handed and the CRL Jackson 1085 Series is a 48 inch non-handed device, while the BEST Precision 2701 Series is described as reversible. For a property manager stocking spares across a building, a field reversible or non-handed device cuts the number of part numbers to hold.
    How fast can I get the Von Duprin 5547 EO-F US26D-4 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 5547 EO-F US26D-4 come with a warranty?
    Absolutely. The Von Duprin 5547 EO-F US26D-4 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 5547 EO-F US26D-4?
    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
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