Von Duprin 9875-3FT 3 ft Smoot...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,445.02
Von Duprin 9875 Series - 3 ft Smooth Case Wide Stile Mortise Exit Device

Von Duprin 9875-3FT 3 ft Smooth Case Wide Stile Mortise Exit Device, Grade 1, Non-Handed

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Model: 9875EO 3 US26D
$3,445.02
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Von Duprin 9875-3FT 3 ft Smooth Case Wide Stile Mortise Exit Device, Grade 1, Non-Handed

Heavy-Duty Commercial Mortise Exit Device for Institutional and High-Traffic Applications

The Von Duprin 9875-3FT is a 3-foot (36") smooth case, wide stile mortise exit device engineered for demanding institutional environments including schools, hospitals, and government buildings. As part of the renowned 98/99 Series, this device features a smooth mechanism case and wide stile heavy-duty push pad design, certified to ANSI/BHMA A156.3 2014 Grade 1 standards and listed to ANSI/UL 10C (fire-rated configurations) and ANSI/UL 305. The device accommodates doors 1-3/4" thick, delivers a 3/4" latch throw, and is non-handed for flexible installation on single and double doors with mullion. Fasteners are included for wood or metal doors 1-3/4" and 2-1/4" thick.

Professional Features & Benefits

  • Wide Stile, Smooth Case Design: The 98 Series smooth mechanism case paired with a wide stile heavy-duty push pad delivers an architectural aesthetic suited for high-profile commercial and institutional facilities.
  • ANSI/BHMA Grade 1 Certified: Certified to ANSI/BHMA A156.3 2014 Grade 1, the highest industry standard, ensuring long-term reliability in high-use applications such as schools, hospitals, and government buildings.
  • Multi-Standard Compliance: Listed to ANSI/UL 10C (fire-rated configurations), ANSI/UL 305, CAN/ULC-S104 (fire-rated configurations), and CAN/ULC-S132 for broad code compliance across commercial applications.
  • Door Size & Thickness Compatibility: Designed for 36" (3 ft) wide stile doors with a door thickness of 1-3/4", with a 3/4" latch throw and center case dimensions of 8" x 2-3/4" x 2-3/8" for precise fit.
  • Non-Handed Configuration: Non-handed design simplifies specification and installation on single and double doors with mullion; handing is only required when specific options such as SD, -2 (Double Cylinder), or SS (signal switch) are selected.
  • Hex Key Dogging: Equipped with hex key dogging for convenient hold-open functionality in appropriate applications, supporting operational flexibility across facility types.
  • Field-Configurable Options & Retrofit Kits: A broad range of field-configurable options and retrofit kits — including CDSI/HDSI security dogging indicators, QEL electronic latch retraction, and electronic switches (RX request-to-exit, LX latchbolt monitoring) — allow the device to evolve with changing facility technology needs.
  • Upgrade Options Available: Compatible with AX (ADA-compliant, certified to 5 lb. force per 2010 ADA Chapters 404.2.7 and 30934 and 2013 California Building Code Chapter 11B-309.4), CX (CHEXIT delayed egress meeting NFPA and IBC requirements with 15-second delay and nuisance alarm), and XP (patented 2-piece latchbolt design) upgrade configurations.
  • Fasteners Included: Includes fasteners for wood or metal doors 1-3/4" and 2-1/4" thick, reducing additional hardware requirements at installation.
  • Covers Standard Door Cutouts: Covers stock hollow metal doors with 86 or 161 cutouts on single doors and may cover cutouts on pairs (consult template for pairs applications).

Technical Specifications

  • Series: 98 & 99 Series
  • Grade: Grade 1
  • Fasteners: Included for wood or metal doors 1-3/4" and 2-1/4" thick
  • Product Group: Exit Devices and Trim
  • Product Subgroup: Exit Devices - Mortise
  • Product Type: Exit Devices - Mortise
  • Subcategory: Mortise Exit Devices
  • Latch Throw: 3/4"
  • Commercial/Residential: Commercial
  • Stile Type: Wide Stile
  • Center Case Dimensions: 8" x 2-3/4" x 2-3/8"
  • Wood Door Compatible: No
  • MAP Policy: Yes
  • Product Model: 9875-3ft
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/4"
  • Product Size: 36"
  • Dogging Configuration: Hex Key Dogging
  • Fire Rating: No
  • Product Projection: 3-13/16"
  • Product Style: Push Pads
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Professional Applications

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

Delayed Egress Compliance

The 9875-3FT is compatible with the CX (CHEXIT) upgrade option, which meets NFPA and IBC requirements for delayed egress applications. When configured with CHEXIT, a standard device keeps doors secure for 15 seconds after a request to exit while a nuisance alarm sounds, providing code-compliant delayed egress functionality for facilities requiring controlled exit management.

Why Choose Von Duprin Quality?

Von Duprin mortise exit devices are engineered to the highest industry standards, with the 98/99 Series certified to ANSI/BHMA A156.3 2014 Grade 1 and listed to ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132 for comprehensive code compliance. The 9875-3FT smooth case wide stile design is purpose-built for high-use and high-abuse institutional environments including schools, hospitals, and government facilities. With a broad ecosystem of field-configurable options, retrofit kits, and upgrade paths, Von Duprin delivers a future-ready exit device solution for demanding commercial applications where dependable performance is essential.

Manufacturer Resources

Von Duprin 98/99 Series Catalog

Product Specs

Series:
98 & 99 Series
Grade:
Grade 1
Fasteners:
Included for wood or metal doors 1-3/4" and 2-1/4" thick
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Devices - Mortise
Product Type:
Exit Devices - Mortise
Subcategory:
Mortise Exit Devices
Latch Throw:
3/4"
Commercial/Residential:
Commercial
Stile Type:
Wide Stile
Center Case Dimensions:
8" x 2-3/4" x 2-3/8"
Wood Door Compatible:
No
MAP Policy:
Yes
Product Model:
9875-3ft
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/4"
Product Size:
36"
Dogging Configuration:
Hex Key Dogging
Fire Rating:
No
Product Projection:
3-13/16"
Product Style:
Push Pads
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 9875EO 3 US26D – Frequently Asked Questions

1) Do I need to specify handing for a 9875 mortise exit device?
The 9875-3FT is non-handed as a base device, so it goes on either a single door or a pair with a mullion without picking a hand up front. Handing does become a factor once you add certain options: SD special center case dogging, double cylinder, or an SS signal switch. Ordering does ask you to pick RHR or LHR, so establish the swing before you build the part number even if the mechanism itself is reversible.
2) Should I use a mortise exit device or a rim device on my opening?
A mortise device like the 9875-3FT latches into a mortise pocket prepped in the door edge, so the door has to be prepped (or already prepped) for a mortise lock case, and the stile has to be wide enough to take it. That's why it's a wide stile device. In exchange you get a concealed lock body and a 3/4 inch latch throw into a standard mortise strike. If your doors are narrow stile aluminum, a mortise device of this type won't fit and you want a narrow stile alternative such as the Adams Rite 8400 Series. For a pair of doors without a mullion, a mortise device latches at the edge only, so you'd be looking at a vertical rod device instead, like the Sargent 1256NB-8710G surface vertical rod.
3) Will the 9875 latch into the mortise strike already in my frame?
The 9875-3FT throws its latchbolt 3/4 inch, which is the standard mortise exit device throw, so an existing mortise strike with the right lip projection and prep normally takes it. What matters more on a retrofit is the door prep: this is a mortise device, so the edge pocket and face prep have to line up with the 8 x 2-3/4 x 2-3/8 inch center case. On stock hollow metal doors it covers 86 or 161 cutouts on single doors, and it may cover cutouts on pairs, though pairs should be checked against the template.
4) What trim do I order with a Von Duprin 9875 exit device, and can I get it as exit only?
Trim is a separate choice on the 9875-3FT and it sets what happens on the outside of the door. EO is exit only with no outside operation. NL night latch gives key retraction from outside. Beyond that you can order knob (K), lever (L), or thumbpiece (TP) trim, each with blank escutcheon, dummy trim, or night latch variants, plus straight dummy trim (DT). If you pick an L lever function, you also pick the lever design: 06 is the default, with 01, 02, 03, 05, 07, 17, and 18 available.
5) Can the 9875 mortise exit device be tied into an access control system?
Yes, and the electrification is ordered on the device rather than added later. QEL quiet electric latch retraction (or EL, or PN pneumatic) pulls the latch back on a signal so the door free-swings on a schedule or a card read. For monitoring, RX reports request-to-exit, LX monitors the latchbolt, and LX-RX does both, with WP-RX for wet locations, RX-LC low current, and RX-2 for a double request-to-exit. ALK alarm exit kits are available less switch or bundled with RX or with LX and RX. For delayed egress, the CX CHEXIT option holds the door 15 seconds after a request to exit with a nuisance alarm sounding.
6) Does the Von Duprin 9875 meet ADA operating force requirements?
Not as standard, but the AX accessible option is what gets you there. AX is certified to 5 lb. operating force per 2010 ADA Chapters 404.2.7 and 30934 and 2013 California Building Code Chapter 11B-309.4. It's a yes/no choice at time of order on the 9875-3FT, so if the opening is on an accessible route, specify AX rather than planning to adjust it in the field.
7) What is the closest wide stile mortise exit device to the Von Duprin 9875-3FT for a 36 inch door?
The Falcon 25-M-EO is a Grade 1 wide stile mortise exit device built for a 36 inch door with a 1-3/4 inch door thickness, which matches the 9875-3FT on stile type, grade, size and door thickness. The difference is function: the Falcon 25-M-EO is exit only, while the 9875-3FT is ordered with a trim function across a range that includes exit only, lever, knob, thumbpiece and night latch. If the opening needs outside trim, the 9875-3FT covers it in one part number; if the opening is egress only, the Falcon 25-M-EO does the same job.
8) The 9875-3FT is not fire rated. What mortise exit device works on a fire rated opening?
Two options carry a fire rating that the 9875-3FT does not. The Adams Rite 3300 Series is a Grade 1 fire rated wide stile mortise exit device for wood and hollow metal doors. The Corbin Russwin ED5600AL is a Grade 1 3 hour fire rated mortise exit device, wide stile, for 1-3/4 inch doors, supplied exit only or for use with classroom or passage lever trim ordered separately. Both stay at Grade 1, so the change is the label on the opening, not the duty rating.
9) Will the 9875-3FT fit a narrow stile aluminum storefront door?
No. The 9875-3FT is a wide stile device with a center case of 8 inches by 2-3/4 inches by 2-3/8 inches, which a narrow aluminum stile will not carry. For aluminum storefront, the Adams Rite 8400 Series is a Grade 1 narrow stile mortise exit device made for aluminum doors. The Sargent 8304 is another narrow stile mortise device, Grade 1, in night latch function.
10) How do I hold a Von Duprin 9875 door open during business hours?
Hex key dogging is standard on the 9875-3FT: drop the pushpad with a hex key and the latch stays retracted for push-pull operation. If you'd rather not hand out hex keys, cylinder dogging (CD) uses a keyed cylinder instead. For schools and facilities that want to see at a glance whether a door is secured, CDSI adds a security indicator to cylinder dogging and HDSI adds it to hex dogging, with DI and CI dogging indicator options as well. LD orders the device less dogging, which is what you specify when facility policy or the opening doesn't allow the latch to be held back.
11) Is the Von Duprin 9875 tough enough for a school or hospital corridor?
It's certified to ANSI/BHMA A156.3 2014 Grade 1, the top commercial durability tier for exit devices, on a wide stile heavy-duty pushpad with a smooth mechanism case. That's the specification level normally written for schools, hospitals, and government buildings. If noise in a corridor or patient area is a concern, the QM quiet mechanical option is orderable on the device, and QEL is the quiet version of electric latch retraction.
12) What are the alternatives to a Von Duprin 9875 wide stile mortise exit device?
Staying wide stile and Grade 1, the closest equivalents are the Falcon 25-M-EO in a 36 inch 3 ft size for 1-3/4 inch doors, though it's exit only rather than trim-configurable, the Detex 30 Series Advantex, also device-only exit only and not for wood doors, and the BEST Precision 2301 Series, an exit only mortise device. If you specifically need a night latch function device, the Sargent 8904 is a wide stile mortise night latch with 24VAC/DC operation. The difference that usually decides it: the 9875-3FT is ordered with the trim function you want (EO, night latch, knob, lever, or thumbpiece), while several of those peers are exit only.
13) If the opening only needs egress with no outside trim, what is a simpler alternative to the 9875-3FT?
Devices supplied exit only skip the trim decision entirely. The Falcon 25-M-EO is a Grade 1 wide stile mortise exit device in exit only function for 1-3/4 inch doors. The Detex 30 Series Advantex is a Grade 1 wide stile mortise device supplied as device only, exit only, and is not wood door compatible, the same door material limit the 9875-3FT carries. The BEST Precision 2301 is a mortise exit device in exit only form with heavy wrought construction. The 9875-3FT also has an EO exit only trim function if the rest of the 98/99 option set is wanted on the opening.
14) What is the difference between the Von Duprin 9875-3FT and the Sargent 8904 for a night latch opening?
Both are Grade 1 wide stile mortise exit devices and both can serve a night latch opening: the Sargent 8904 is built in night latch function with 24VAC/DC operation, and the 9875-3FT reaches night latch through its NL, K-NL and L-NL trim functions plus electric latch retraction options EL, QEL or PN ordered on the device. The 8904 arrives as one fixed function; the 9875-3FT is configured to it.
15) Can a Sargent 1256NB-8710G replace a Von Duprin 9875-3FT?
No, they are different device types. The 9875-3FT is a mortise device latching into the frame at the strike, with a 3/4 inch latch throw. The Sargent 1256NB-8710G is a Grade 1 surface mount vertical rod exit device, 84 inches, narrow stile, fire rated with electric latch retraction. Vertical rod hardware secures at the head and sill, so it needs different door prep and different strikes, and it is narrow stile rather than the wide stile prep the 9875-3FT uses. It is the right device for a fire rated vertical rod opening, not a swap for a mortise one.
16) Which mortise exit device should I standardize on across a school if some doors are wood and some are hollow metal?
The 9875-3FT is Grade 1 and not wood door compatible, so it covers the hollow metal side of the building. To hold one line across both door materials, the Adams Rite 8300 Series is a Grade 1 wide stile mortise exit device for wood and hollow metal doors, with the Adams Rite 3300 Series as the fire rated Grade 1 version for the rated openings in the same building. All three are Grade 1 wide stile, so the push pad duty rating stays level across the standard.
17) Can I match the Von Duprin 9875 to the finishes on the rest of my doors?
Twelve finishes are offered on the 9875-3FT: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 625 bright chrome, 626 satin chrome, 628 aluminum, 630 satin stainless steel, 643E aged bronze, 710 dark bronze anodized, and 711 flat black. If you're standardizing a building, 626 and 630 are the usual institutional pair, and 628 aluminum reads with clear anodized storefront.
18) Can I get a Von Duprin exit device with a braille or glow-in-the-dark pushbar?
Yes. The 9875-3FT pushbar is a choice at order: standard bar, BR braille pushbar, KN knurled bar (knurling is the tactile warning texture used on doors to hazardous areas), RSS emergency exit push bar, or SG safety glow pushbar for egress paths where you want the bar visible in a power loss or smoke condition.
19) Is the Sargent 810 an alternative to the Von Duprin 9875-3FT on an inactive leaf?
They are not the same class of part. The Sargent 810 is exit device trim in dummy function, a pull only, with no latching mechanism behind it. The 9875-3FT is the exit device itself and reaches a dummy appearance through its DT, K-DT and L-DT trim functions while still being a latching mortise device. On an inactive leaf that needs a pull and nothing more, the 810 trim is the part; where the leaf must latch and release, it is the 9875-3FT.
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Does the Von Duprin 9875EO 3 US26D come with a warranty?
Absolutely. The Von Duprin 9875EO 3 US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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