Von Duprin 35AF-3ft Fire Rated...
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$3,702.91
Von Duprin 35AF-3ft Fire Rated Narrow Stile Rim Exit Device, Less Dogging, 36" Smooth Case

Von Duprin 35AF-3ft Fire Rated Narrow Stile Rim Exit Device, Less Dogging, 36" Smooth Case

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Model: 35AEO-F 3 315
$3,702.91
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Von Duprin 35AF-3ft Fire Rated Narrow Stile Rim Exit Device, Less Dogging, 36" Smooth Case

Commercial-Grade Fire Rated Panic Exit Hardware for Narrow Stile Doors

The Von Duprin 35AF-3ft is a fire rated, narrow stile rim exit device from the renowned 33A/35A Series, engineered for demanding institutional applications including schools, hospitals, and government buildings. Featuring a smooth mechanism case and a 36" product size, this device accommodates door stiles as narrow as 1-3/4" (44mm) and is certified to ANSI/BHMA A156.3 2014 Grade 1 standards. UL listed for panic exit hardware under ANSI/UL 10C (fire-rated) and ANSI/UL 305, this non-handed rim device delivers reliable, code-compliant egress performance across single and double door applications with mullion.

Professional Features & Benefits

  • Narrow Stile Compatibility: Fits door stiles as narrow as 1-3/4" (44mm), making it ideal for aluminum storefront and narrow stile door configurations in commercial settings.
  • Fire Rated Construction: Certified to ANSI/UL 10C and CAN/ULC-S104 for fire-rated applications, ensuring code-compliant performance in fire-rated door assemblies.
  • ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.3 2014 Grade 1 standards—the highest industry certification—for heavy-duty use in institutional environments.
  • Smooth Mechanism Case: The 35A Series features a smooth mechanism case with a one-piece center case cover, distinguishing it from the grooved case of the 33A Series for a refined architectural appearance.
  • Non-Handed Design: The rim device is non-handed (except when the SS signal switch option is used), simplifying specification and installation across varied door configurations.
  • Field-Configurable Options: A broad range of field-configurable options and retrofit kits—including CDSI/HDSI security dogging indicators, QEL electronic latch retraction, and electronic switches (RX, LX)—allow the device to adapt to evolving facility needs.
  • Versatile Device Type Options: Available in rim, surface-mounted vertical rod (27), concealed vertical rod with 5/8" bottom bolt (47), concealed vertical rod with 1-1/2" bottom bolt (48), concealed vertical cable (49), and Wood Door Concealed Vertical Cable (50WDC) configurations.
  • 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.

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 - Rim
  • Subcategory: Rim Exit Devices
  • Latch Throw: 3/4"
  • Product Type: Exit Devices - Rim
  • Commercial/Residential: Commercial
  • Device Centerline from Finished Floor: 39-13/16"
  • Stile Type: Narrow Stile
  • Wood Door Compatible: No
  • MAP Policy: Yes
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4"
  • Product Size: 36"
  • 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

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

Delayed Egress Compliance

The 35A Series supports the CX (CHEXIT) upgrade option, which meets NFPA and IBC requirements for delayed egress. This configuration keeps doors secure for 15 seconds after a request to exit while a nuisance alarm sounds, providing an added layer of security for controlled-access environments requiring code-compliant delayed egress solutions.

Why Choose Von Duprin Quality?

Von Duprin rim exit devices are engineered to the highest industry standards, with the 35A Series certified to ANSI/BHMA A156.3 2014 Grade 1 and listed under ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132 for comprehensive code compliance. The smooth mechanism case, one-piece center case cover, and broad range of field-configurable and retrofit options make this device a trusted choice for institutional applications where dependable, long-term performance is essential. Engineered for demanding commercial environments including schools, hospitals, and government facilities.

Product Specs

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 - Rim
Subcategory:
Rim Exit Devices
Latch Throw:
3/4"
Product Type:
Exit Devices - Rim
Commercial/Residential:
Commercial
Device Centerline from Finished Floor:
39-13/16"
Stile Type:
Narrow Stile
Wood Door Compatible:
No
MAP Policy:
Yes
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4"
Product Size:
36"
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

Von Duprin 35AEO-F 3 315 – Frequently Asked Questions

1) Will the Von Duprin 35AF fit an aluminum storefront door with a narrow stile?
Yes. The 35AF is a narrow stile rim device and mounts on stiles as narrow as 1-3/4 inches (44mm), which is what puts it on aluminum storefront and other narrow stile doors. Door thickness is 1-3/4 inches. It projects 3-13/16 inches off the door face, so check that against any adjacent wall, return, or door in the swing path.
2) Is the Von Duprin 35AF fire rated, and what standards does it carry?
Fire rated, yes. The 35A Series is listed under ANSI/UL 10C and CAN/ULC-S104 for fire door assemblies, plus ANSI/UL 305 and CAN/ULC-S132 for panic hardware, and it is certified to ANSI/BHMA A156.3 2014 Grade 1. Because it is a fire device it is supplied less dogging: fire-rated exit hardware cannot be held in a dogged-down state.
3) Do I need to order a handed version of the 35AF, and what mounting height does it go at?
Handing is not a concern here. The 35A rim device is non-handed, so one part covers left and right hand openings. The one exception is the SS signal switch option, which does need handing called out. Mount to a device centerline of 39-13/16 inches from finished floor. Wood and metal door fasteners in 1-3/4 inch and 2-1/4 inch lengths come in the box, along with SNB (sex nut and bolt) fasteners.
4) Will the 35AF rim device latch into the strike I already have on the frame?
The 35A latch throws 3/4 inch, so the existing strike has to have a lip and pocket that accepts a 3/4 inch rim latch at the 39-13/16 inch device centerline. A rim strike from another rim panic at the same height will usually take it; a mortise or vertical rod strike will not, since a rim device latches into a surface strike on the frame stop rather than into the door edge.
5) Can a rim exit device like the Von Duprin 35A be used on a pair of doors?
On a pair, a rim device needs a removable mullion between the leaves to give each latch something to catch. That is the standard way the 35A is applied to double doors. If you cannot have a mullion in the opening (moving equipment, gurneys, wide loads), you want a vertical rod instead of a rim device: the same family covers surface vertical rod (27), concealed vertical rod with a 5/8 inch bottom bolt (47) or a 1-1/2 inch bottom bolt (48), concealed vertical cable (49), and wood door concealed vertical cable (50WDC).
6) Can I dog down the Von Duprin 35AF to hold the door in a push-open state during business hours?
No. The 35AF ships less dogging because it is a fire rated device, and fire exit hardware is not permitted to be mechanically held retracted. If you need the latch held back on a schedule, use the electric latch retraction options (EL or QEL) on an access control time schedule instead, which releases on alarm. On a non-rated opening, a device with hex key dogging such as the Design Hardware 1000R is the simpler route.
7) My door has a wide stile. Is the Von Duprin 35AF the right device?
The Von Duprin 35AF-3ft is built for narrow stile doors as thin as 1-3/4 inch, so a wide stile opening is better served by a device specified for it. Fire rated wide stile options include the Sargent 12-8810-LTRIM, a fire rated Grade 1 wide stile rim device. Non fire rated wide stile Grade 1 choices at 36 inches include the Corbin Russwin ED2200 exit only, the Corbin Russwin ED5200 which is exit only or accepts trim on 1-3/4 inch doors, the TownSteel ED1100 heavy duty, and the Detex Advantex 10 Series, an extra heavy duty wide stile device. A narrow stile device mounted on a wide stile door leaves the case sitting where the trim and cylinder prep will not line up.
8) Which fire rated rim exit devices come in a 36 inch size besides the Von Duprin 35A?
Three fire rated rim devices are offered at 36 inches. The Von Duprin 35AF-3ft is a 36 inch narrow stile device carrying a fire rating and Grade 1. The Marks USA M9900F-36 is a 36 inch fire rated rim exit device in exit only function with a panic protector end cap. The Orca Hardware OED85 is a 36 inch fire rated rim exit device, also exit only. The Von Duprin is the one of the three specified as narrow stile, so on an aluminum storefront stile the 35AF is the fit; on a hollow metal door where exit only is all the opening needs, the M9900F-36 or OED85 cover the same 36 inch width.
9) Is an SDC pressure sense bar or switch bar a substitute for a Von Duprin 35AF rim exit device?
No. The SDC MSB550 is a mechanical switch bar that releases an electromagnetic lock, and the SDC SureExit PSB560 is a pressure sense bar; both are 36 inch bars for narrow or wide stile doors and neither carries a fire rating. They signal a lock to release rather than throwing a latch of their own. The Von Duprin 35AF-3ft is a mechanical rim exit device with a 3/4 inch latch throw, Grade 1, and a fire rating, which is what a fire rated opening requires. Substituting a switch bar for the 35AF changes the opening from a latching fire exit into a mag lock release.
10) Are Adams Rite interlocking rim devices interchangeable with the Von Duprin 35AF?
Not directly. The Adams Rite EX88 and the 8700 and 8800 Series are narrow stile rim devices built around starwheel interlocking, a different latching arrangement from the standard rim strike the Von Duprin 35AF-3ft works with at a 3/4 inch latch throw. The EX88, 8700 and 8800 are all Grade 1 narrow stile but none is fire rated, while the 35AF-3ft carries a fire rating. If you are replacing an existing Adams Rite device, the frame prep is likely set up for the interlocking strike, which is worth checking before swapping in a rim device.
11) What outside trim function do I have to specify with the Von Duprin 35A rim device?
Trim is a separate call-out and it decides how the door works from the pull side. Choices are EO (exit only, no outside operation), NL (night latch) and NL-OP (night latch with optional pull), L (lever) and L-BE (lever with blank escutcheon), T (thumbturn) and T-BE, TL (thumbturn and unlocks) and TL-BE, and DT (dummy trim). If you pick an L trim you also pick the lever design: 06 is the default, with 01, 02, 03, 05, 07, 17 and 18 also available.
12) What finishes does the Von Duprin 35A series come in for matching existing hardware?
Ten finishes across the 35A: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, 628 aluminum, 643E aged bronze, 710 dark bronze anodized, and 711 flat black. On storefront work 628 aluminum and 710 dark bronze anodized are the two that typically follow the frame color; 626 satin chrome is the usual match for institutional openings running satin hardware.
13) Does the 35A exit device come with electric latch retraction or a request to exit switch?
Both are options you add when ordering, not standard. Latch retraction: EL (electric latch retraction), QEL (quiet electric latch retraction), or PN (pneumatic). Switch options: RX request to exit, LX latchbolt monitor, LX-RX combination, RX2 double request to exit, WP-RX waterproof request to exit, ALK alarm exit kit less switch, RX-ALK, and LXRX-ALK. QEL and the RX/LX switch kits are also offered as field-installable retrofits, so an access control tie-in can be added later without swapping the device.
14) How do I get delayed egress on a narrow stile storefront door?
Order the 35A with the CX (CHEXIT) option. It holds the door secure for 15 seconds after someone pushes the pad, with a nuisance alarm sounding during the delay, and meets the NFPA and IBC requirements for delayed egress. It builds into the device rather than adding a separate box on the frame.
15) What narrow stile rim exit device should I use if the opening is not fire rated?
Several Grade 1 narrow stile rim devices are specified as non fire rated. The Adams Rite 8700 Series 30 inch and 8800 Series 30 inch are both Grade 1 narrow stile with fire rating listed as no; the 8800 takes a door thickness range of 1-3/4 to 2-1/4 inch and is not wood door compatible, while the 8700 is wood door compatible. The Corbin Russwin ED4200 is a Grade 1 narrow stile rim device at 36 inches on 1-3/4 inch doors, exit only or accepting trim. The Falcon 1790EO is a Grade 1 narrow stile exit only device at 42 inches on 1-3/4 inch doors. The Von Duprin 35AF-3ft carries a fire rating, which the fire rated openings in the same building will still require.
16) What is a simpler alternative to the Von Duprin 35AF if I only need exit only with no trim?
The Von Duprin 35A range covers ten trim functions from exit only through lever, night latch and thumbturn variants, so if the opening only ever needs push to exit, a dedicated exit only device is a shorter spec. The Marks USA M9900F-36 is a 36 inch fire rated rim device in exit only function, and the Orca Hardware OED85 is a 36 inch fire rated rim device, also exit only. For non fire rated exit only work, the Dexter ED1000 Series 3FT is a Grade 1 rim exit device at the same 3 foot size, and the Arrow 4800 Series is a 36 inch narrow stile exit only rim device for 1-3/4 inch doors.
17) Is a crossbar exit device an alternative to the Von Duprin 35AF push pad?
They are different bar styles. The Von Duprin 35AF-3ft uses a push pad, which is the flush touchpad form. Crossbar devices such as the CRL Jackson 1095 Series 48 inch and the Corbin Russwin ED3200 project a horizontal bar across the door; both are wide stile devices and neither is fire rated, and the ED3200 is specified for 1-3/4 inch doors. Crossbars are often chosen to match existing hardware on a building, but on a narrow stile aluminum door with a fire rated assembly, a fire rated narrow stile push pad device like the 35AF is what fits the stile and the rating.
18) Which narrow stile rim exit devices are rated for the heaviest traffic?
For a high traffic institutional opening, the Detex 40 Advantex Series is a Grade 1 narrow stile rim device rated extra heavy duty. The Dormakaba QED200 and the Stanley Security QED200 are both Grade 1 heavy duty narrow stile rim devices, the Dormakaba listed as a 36 inch device with a 7 foot rod. The Von Duprin 35AF-3ft is Grade 1 and commercial rated with a fire rating; among these, it is the one specified as fire rated, so on a fire rated opening the duty comparison is settled before it starts.
19) Which rim exit devices are Grade 2 rather than Grade 1 like the Von Duprin 35AF?
The Cal-Royal 5000 36 inch touch bar device and the Cal-Royal 5500 48 inch push bar device both carry Grade 2 and are heavy duty, and neither is fire rated. The Cal-Royal A9800 36 inch and A9820 48 inch are also Grade 2 heavy duty and not fire rated. The Von Duprin 35AF-3ft is Grade 1 with a fire rating. Where a specification calls out ANSI/BHMA Grade 1 or the opening is in a fire rated assembly, the Cal-Royal devices will not satisfy it.
20) I need a night latch function on a narrow stile door. What are my options?
The Von Duprin 35A range includes night latch and night latch with optional pull among its trim functions, alongside lever, thumbturn and blank escutcheon versions, on a non handed device. The Sargent 8504 is the dedicated alternative: a Grade 1 narrow stile rim exit device supplied in night latch function. If the opening also needs a fire rating, the 35AF is the one of the two specified as fire rated.
21) Is a concealed vertical rod device an alternative to the 35AF rim device?
They latch differently. The Von Duprin 35AF-3ft is a rim device, latching into a strike on the frame head. The Hager 4601 Series is a Grade 1 concealed vertical rod narrow stile exit device at 36 inches, and the Hager 4501 is the Grade 1 wide stile pushpad concealed vertical rod version at the same size; both latch top and bottom through rods inside the door and neither is fire rated. Concealed vertical rod suits a pair of doors without a mullion; a rim device on a pair generally needs a mullion between the leaves.
22) Which narrow stile rim devices offer electric latch retraction like the Von Duprin QEL option?
The Von Duprin 35A takes EL electric latch retraction, QEL quiet electric latch retraction, or PN pneumatic as a latch retraction option, plus RX, LX and combination switches. For an electrified alternative, the Dormakaba E2103 with 4908A trim is a 36 inch electrified rim exit device in classroom function. The SDC S6136 Spectra is a 36 inch electrified architectural rim exit device, but it is a 4 inch wide stile device for 1-3/4 to 2 inch doors and is not fire rated, so it will not drop into the narrow stile fire rated opening the 35AF is built for.
23) What is the difference between the Von Duprin 35AF and the Arrow FS1250 fire rated rim device?
Both are fire rated rim exit devices for 1-3/4 inch doors and neither is wood door compatible. The Arrow FS1250 is a 32 inch device from the S1250 Series. The Von Duprin 35AF-3ft is a 36 inch device carrying ANSI/BHMA Grade 1 with a 3/4 inch latch throw and a 39-13/16 inch centerline from finished floor. Size is the first cut here: match the bar to the door width you are covering.
24) What is the difference between the Von Duprin 33A and 35A series?
Mechanically they are the same family; the difference is the case. The 35A carries a smooth mechanism case with a one-piece center case cover, while the 33A uses a grooved case. Pick on how you want the device to read architecturally, not on performance.
25) I need a dummy exit device to match the active leaf. What matches a Von Duprin 35A?
The Von Duprin 35A range includes DT dummy trim among its trim functions, so the inactive leaf can be ordered in the same narrow stile family and the same finish range that runs from 605 bright brass through 626 satin chrome, 628 aluminum and 711 flat black. If the pair is wide stile, the Detex Advantex 00 Series is a Grade 1 wide stile dummy exit device. The Sargent 12-8810-LTRIM is also supplied in dummy function and is fire rated Grade 1 wide stile.
26) Which narrow stile rim devices work as a standardized choice across a mixed facility?
For standardizing narrow stile openings across a building, the Von Duprin 35A is non handed and covers ten trim functions and ten finishes on a Grade 1 fire rated platform, so one family covers both fire rated and non fire rated narrow stile leaves. Among the alternatives, the BEST Precision 2401 Series is a non handed narrow stile rim device in exit only, and the BEST Precision 5101 Series is a non handed universal design rim device. Non handed devices reduce the number of part numbers a facility has to stock, since the same device serves left and right hand openings.
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Does the Von Duprin 35AEO-F 3 315 come with a warranty?
Absolutely. The Von Duprin 35AEO-F 3 315 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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