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9875/9975 Mortise Exit Device9875/9975 Mortise Lock device for all types of single or double doors, UL listed for panic exit hardware. Devices are certified to ANSI/BHMA A156.3 2014, Grade 1. Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3⁄4" (121mm). The 9875 device has a smooth mechanism case and the 9975 device has a grooved case. The Mortise Lock device is non-handed except when the following device options are used: -2 (Double Cylinder) or SS (signal switch).The 7500 Mortise Lock is equipped with a 3⁄4" (19mm) anti-friction latch bolt which is field reversible without removing the lock from the door. It has a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel. 98/99 Series
Von Duprin Template Directory
The 98/99 Series devices are wide stile heavy-duty push pads. Architectural design elements differ between the 98 and the 99.
The 98 Series device has a smooth mechanism case, while the 99 Series has a grooved mechanism case. The 98/99 Series have all been certified to the highest industry standards and are used in schools, hospitals and government buildings.
Features and Benefits
- The breadth of available options allows for tailoring to any facility’s needs.
- Designed for high use and abuse in institutional applications like schools, hospitals and government facilities.
- A variety of field-configurable options available.
- Retrofit kits available to keep up with changing technology.
Specifications
Specifications and certifications are specific to each configuration. See the 98/99 Series catalogs for more information.
- ANSI/BHMA A156.3 2014 Grade 1 certified
- ANSI/UL 10C (fire-rated only)
- ANSI/UL 305
- CAN/ULC-S104 (fire-rated only)
- CAN/ULC-S132
Device Type
The 98/99 Series offers a solution for any single, double and double egress door. All devices can be ordered by adding the “-F” suffix.
- No suffix: rim devices
- 27: surface-mounted vertical rod
- 47: concealed vertical rod (5/8” bottom bolt)
- 47WDC: wood door concealed vertical rod
- 48: concealed vertical rod (1-1/2” bottom bolt)
- 49: concealed vertical cable
- 50WDC: Wood Door Concealed Vertical Cable
- 52: 1-point concealed vertical cable
- 57: 3-point latching
- 75: Mortise Lock devices
FUNCTIONS & TRIM
A variety of functions and trim options are available, but only the standard options are listed below. Refer to the 98/99 Series catalog for more information.
Functions
- Classroom: the key locks and unlocks the lever or knob
- Dummy: the rigid mechanical trim for pull operation
- Exit only: no outside trim
- Passage: the lever or knob is always active
- Storeroom: the key retracts the latchbolt, the lever or knob is rigid
98/99 Series popular trims
- 990: pull trim, 5 standard functions:
- Classroom (TP)
- Storeroom (NL)
- Dummy trim (DT)
- Passage (TP-BE)
- Exit only (EO)
- 996: lever or knob trim, 4 standard functions:
- Classroom (L, K)
- Storeroom (L-NL, K-NL)
- Dummy (L-DT, K-DT)
- Passage (L-BE, K-BE)
Levers and Finishes
The 98/99 Series offers many choices for levers and finishes. Refer to the 98/99 Series catalog for more information.
OPTIONS
With the 98/99 Series, the devices can be retrofitted to keep up with evolving technology with various retrofit kits. Refer to the 98/99 Series catalog for more information.
Retrofitting an existing device
- CDSI/HDSI: security dogging indicators provide at-a-glance verification of the panic device status
- QEL: electronic latch retraction with limited operational noise
- Electronic switches: can be used as part of an access control system or in a standalone application
- Request to exit (RX)
- Latchbolt monitoring (LX)
Upgrading to a new device
- AX: an accessible device that is certified to meet the 5 lb. force requirements for the 2010 American Disabilities Act (ADA) (Chapters 404.2.7 and 30934) and 2013 California Building Code (Chapter 11B-309.4)
- CX: CHEXIT meets NFPA and IBC requirements for delayed egress; a standard device keeps doors secure for 15 seconds after a request to exit while a nuisance alarm sounds
- XP: patented 2-piece latchbolt design, available for 98/99 Series panic and fire applications
Accessories
From mullions to powers transfers and strikes, the 98/99 Series offers a range of accessories to meet the evolving needs of any facility. Refer to the 98/99 Series catalog for more information.
RESOURCES & DOWNLOADS
98/99 Series Catalog Document Library Mechanical pool exit hardware data sheetVon Duprin Template Directory
Manufacturer Resources
Installation Instructions
Product Specs
- Product Group:
- Exit Devices and Trim
- Series:
- 98 & 99 Series
- Grade:
- Grade 1
- Fasteners:
- Included for wood or metal doors 1-3/4" and 2-1/4" thick
- Product Subgroup:
- Exit Devices - Mortise
- Subcategory:
- Mortise Exit Devices
- Latch Throw:
- 3/4"
- Product Type:
- Exit Devices - Mortise
- Commercial/Residential:
- Commercial
- Lock Type:
- Mortise
- Stile Type:
- Wide Stile
- Center Case Dimensions:
- 8" x 2-3/4" x 2-3/8"
- MAP Policy:
- Yes
- Product Function:
- EO/DT/NL (field selectable). For TP, K or L remove NL drive screw from device.
- 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 9875-3-628 – Frequently Asked Questions
1) Is the Von Duprin 9875/9975 fire rated?
No. The 9875/9975 as configured here is a panic device, not a fire exit device, and it comes with hex key dogging as standard, which fire-rated devices cannot have. It is UL listed for panic exit hardware, certified to ANSI/BHMA A156.3 2014 Grade 1. If your opening is in a fire-rated assembly, you need a fire-rated mortise device, such as the Adams Rite 3300 Series or the Corbin Russwin ED5600AL, which is a Grade 1 3-hour fire rated mortise exit device.
2) Do I have to specify handing when I order a 9875 or 9975 mortise exit device?
The mortise device itself is non-handed, and the 3/4 inch anti-friction latchbolt is field reversible without pulling the lock out of the door. Two things do force a hand: the -2 double cylinder option and the SS signal switch. Trim is a separate matter, night latch and lever trims are ordered as left hand reverse or right hand reverse, so know which way the door swings before you pick the trim.
3) Should I use a mortise exit device or a rim device on my door?
A mortise exit device puts the lock body inside a mortise pocket in the door edge, so it needs the 86 cutout prep. That gets you a concealed lock case, a 3/4 inch latch throw into the frame strike, and a deadlocking auxiliary bolt. A rim device (the 98/99 with no device type suffix) surface mounts on the door face and needs no mortise prep, which is why it is the usual retrofit on doors that were never prepped. For a pair with no mullion you want a vertical rod device instead: 27 surface vertical rod, 47 or 48 concealed rod, or 49 concealed cable.
4) Which trim do I order with a Von Duprin 9875 for a classroom door where the key locks and unlocks the lever?
Classroom function on lever trim is the 996L-M, ordered as L, in left hand reverse or right hand reverse. The key locks and unlocks the lever. If you want the lever to always be free, order L-BE (996L-BE-M, passage with blank escutcheon). For storeroom, where the lever stays rigid and the key retracts the latch, order L-NL (996L-NL-M). Levers come in 06 (standard), 03, 07, 17, or LAT Latitude. Knob versions are the 996K-M family, and 990 pull trims cover thumbpiece and night latch.
5) Will the 9875 latch into the strike I already have in my frame?
The mortise lock carries a 3/4 inch (19mm) anti-friction latchbolt plus a separate non-handed auxiliary bolt that deadlocks it. The faceplate has an adjustable bevel, which is what lets it sit right in a beveled door edge. If your existing frame prep was cut for a different mortise lock, the strike location and the 86 cutout in the door are the two things to verify, a 3/4 inch throw only helps if the strike is set for it.
6) Does the Von Duprin 9875 meet the 5 pound ADA operating force requirement?
Only if you order the AX option. AX is the accessible version certified to the 5 lb force requirements of the 2010 ADA (chapters 404.2.7 and 309.4) and the 2013 California Building Code chapter 11B-309.4. A standard device is not ordered as AX, so if the opening is on an accessible route, specify it. Two other upgrade options worth knowing: CX CHEXIT for delayed egress meeting NFPA and IBC (15 second delay with nuisance alarm), and XP, the two-piece latchbolt.
7) I need the outside of the door to stay locked with no lever, just a key. What do I order?
Night latch is the function. On a 9875/9975 order NL for the 990NL-M pull trim, specified LHR or RHR, and the key retracts the latch while the pull stays fixed. Lever or knob versions are L-NL (996L-NL-M) and K-NL (996K-NL-M). If you want no outside trim at all, order EO exit only. The device ships EO/DT/NL field selectable, so those three are set at the door, but for thumbpiece, knob or lever functions you remove the NL drive screw from the device.
8) What is the closest wide stile mortise exit device to the Von Duprin 9875/9975 if the opening is fire rated?
The Von Duprin 9875/9975 mortise exit device is a Grade 1 wide stile device that is not fire rated. For a fire rated opening, the Adams Rite 3300 Series is a fire rated Grade 1 wide stile mortise exit device for wood and hollow metal doors, and the Corbin Russwin ED5600AL is a Grade 1 3 hour fire rated mortise exit device for 1-3/4 inch doors that can be ordered exit only or with classroom or passage lever trim. Both keep the mortise lock case format and the wide stile mounting the 9875/9975 uses.
9) What is the difference between the Von Duprin 98 and 99 mortise exit device?
Mechanically nothing. The 9875 has a smooth mechanism case and the 9975 has a grooved case, and that is the whole difference. Same mortise lock, same functions, same options. Pick whichever matches the look of the other devices in the building. Both are offered in twelve finishes, from 605 bright brass and 626 satin chrome through 630 satin stainless, 710 dark bronze anodized and 711 flat black.
10) How much does the Von Duprin 9875/9975 exit device stick out into the corridor?
Projection is 3-13/16 inches off the door face, and the center case measures 8 x 2-3/4 x 2-3/8 inches. That projection is what matters when the door swings into a corridor with a clear-width requirement or when there is a wall return or another leaf close by. Device length is 36 inches, sized for a 3-foot door.
11) Can I get the Von Duprin 9875 exit device wired for access control with electric latch retraction?
Yes, and there is a choice. EL is standard electric latch retraction, QEL is the quiet version (worth it on a hospital or a library where solenoid noise carries), and PN is pneumatic. Switch options include RX request to exit, LX latchbolt monitoring, LX-RX combined, RX-2 double RX, and WP-RX waterproof. Alarm kits are ALK, RX-ALK and LXRX-ALK. Note that the SS signal switch option makes the device handed, so specify the door swing when you add it.
12) Can the push pad on the 9875 be held down so the door stays unlocked during business hours?
Hex key dogging is standard on the 9875/9975, so a maintenance person can dog the pad down with a hex wrench and leave the latch retracted. If you want staff to do it with a key instead, order CD cylinder dogging. CDSI and HDSI add a security indicator that shows at a glance whether the device is dogged or secure, CI is the cylinder dogging indicator, DI the dogging indicator, and LD is less dogging where you do not want the door dogged at all.
13) Are mounting screws included with the Von Duprin 9875/9975, and will they work on a wood door?
Fasteners ship with the device for wood or metal doors at 1-3/4 inch and 2-1/4 inch thickness, so a standard hollow metal or wood door is covered out of the box. If the install is exposed or high-abuse, SNB sex bolts and SEC security screws are orderable options, and WH weep holes are available for wet locations. Trim is ordered separately, the device itself does not include outside trim unless you specify it.
14) What else could I buy instead of a Von Duprin 9875 wide stile mortise exit device?
Among comparable wide stile Grade 1 mortise devices, the Falcon 25-M-EO is the closest straightforward equivalent for a 36 inch, 1-3/4 inch door in exit only. The Adams Rite 8300 Series is another non-fire-rated wide stile Grade 1 mortise device for wood and hollow metal. The Detex 30 Series Advantex is Grade 1 wide stile but is not wood door compatible, so it is metal doors only. For a night latch function already built in rather than added by trim, the Sargent 8904 is a wide stile Grade 1 mortise device.
15) Can I add security dogging indicators or electric latch retraction to Von Duprin 98/99 devices already installed in my building?
Yes, retrofit kits exist for the 98/99 Series specifically so existing devices can be brought up to current technology. CDSI and HDSI security dogging indicators give at-a-glance verification of whether the device is dogged. QEL adds electronic latch retraction with limited operational noise. RX request to exit and LX latchbolt monitoring switches can go in as part of an access control system or standalone. For a property manager standardizing a building, this is how you avoid replacing every device.
16) Is there a simpler exit only mortise device than the Von Duprin 9875/9975 for a door with no outside trim?
The 9875/9975 ships EO, DT and NL field selectable, so it can be set exit only but still carries the full trim option range. If the opening will never take outside trim, the Falcon 25-M-EO is a Grade 1 wide stile mortise exit device fixed in exit only function for 1-3/4 inch doors in a 36 inch size, and the BEST Precision 2301 is an exit only mortise exit device with heavy wrought construction. The Detex 30 Series Advantex is also a Grade 1 wide stile mortise device supplied device only, exit only.
17) What is the difference between the Von Duprin 9875/9975 and the Adams Rite 8300 Series mortise exit device?
Both are Grade 1 wide stile mortise exit devices for non fire rated openings. The Von Duprin 9875/9975 is a push pad device with a 3/4 inch latch throw, hex key dogging standard, an 8 x 2-3/4 x 2-3/8 inch center case and a 3-13/16 inch projection, and it is non-handed except with the -2 double cylinder or SS signal switch option. The Adams Rite 8300 Series is a life-safety mortise exit device for wood and hollow metal doors.
18) I need electric latch retraction on a wide stile mortise exit device - what are my options besides the Von Duprin 9875/9975?
The Von Duprin 9875/9975 takes EL, QEL or PN latch retraction as an ordering option on the mortise device itself. If the opening needs a factory night latch device with power built in, the Sargent 8904 is a Grade 1 wide stile mortise exit device in night latch function with 24VAC/DC operation. For a vertical rod opening rather than a mortise one, the Sargent 1256NB-8710G is a Grade 1 84 inch fire rated surface mount vertical rod device with electric latch retraction.
19) Is the Sargent 810 dummy pull a substitute for a Von Duprin 9875/9975 mortise exit device?
No. The Sargent 810 is Grade 1 exit device trim in dummy function - a pull for the outside face, not a latching device. The Von Duprin 9875/9975 is the mortise exit device itself, with the 7500 mortise lock and a 3/4 inch anti-friction latch bolt. Its own dummy trim is ordered as the 990DT or 996K-DT and 996L-DT options on the device, so the outside pull and the device are two separate parts.
20) If I need a night latch mortise exit device, do I order a Von Duprin 9875/9975 or a Sargent 8904?
The Von Duprin 9875/9975 is field selectable for EO, DT and NL, so night latch is set on the device and paired with 990NL-M, 996K-NL-M or 996L-NL-M trim, with the NL trim handed left hand reverse or right hand reverse. The Sargent 8904 is a Grade 1 wide stile mortise exit device supplied in night latch function with 24VAC/DC operation, and the Sargent 8304 is the Grade 1 night latch mortise device in a narrow stile body.
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