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Von Duprin 33A-3ft Grooved Case Narrow Stile Rim Exit Device
The Von Duprin 33A-3ft is a grooved case narrow stile rim exit device for 36" single and double doors. Certified to ANSI/BHMA A156.3 2014 Grade 1 and UL listed for panic exit hardware (ANSI/UL 305, ANSI/UL 10C for fire-rated configurations, CAN/ULC-S104 for fire-rated configurations, CAN/ULC-S132). Non-handed. Fits door stiles as narrow as 1-3/4". The grooved case distinguishes the 33A from the smooth-case 35A; both share the same push pad platform.
Key Specifications
- Series: 33/35 Series
- Grade: Grade 1 (ANSI/BHMA A156.3 2014)
- Product Size: 36"
- Door Thickness Range: 1-3/4"
- Stile Type: Narrow Stile (fits stiles as narrow as 1-3/4")
- Door Hand Direction: Non-Handed
- Dogging Configuration: Hex Key Dogging
- Latch Throw: 3/4"
- Product Dimension: 8-3/16" x 1-9/16" x 2-13/32"
- Product Projection: 3-13/16"
- Device Centerline from Finished Floor: 39-13/16"
- Product Style: Push Pads
- Fasteners: Includes 1-3/4" and 2-1/4" wood/metal door fasteners, SNB included
- Commercial/Residential: Commercial
Certifications
- ANSI/BHMA A156.3 2014 Grade 1
- ANSI/UL 305 (panic exit hardware)
- ANSI/UL 10C (fire-rated configurations)
- CAN/ULC-S104 (fire-rated configurations)
- CAN/ULC-S132
Field-Configurable Options
- CDSI/HDSI security dogging indicators
- QEL electronic latch retraction
- RX request-to-exit and LX latchbolt monitoring switches
- AX option: ADA-compliant low-force actuation
- CX CHEXIT delayed egress: meets NFPA and IBC requirements, 15-second hold with nuisance alarm
Typical Applications
- Commercial office buildings
- Schools and educational facilities
- Hospitals and healthcare institutions
- Government and municipal buildings
- Retail establishments
- Industrial and warehouse facilities
- Multi-tenant residential properties
Manufacturer Resources
Von Duprin 98/99 Series Catalog
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
- Tags:
- von duprin 33, von duprin 33a, von duprin 33a series, von duprin 33a nl op, von duprin 33 rim panic, 33a von duprin, von duprin 33 exit device, von duprin 33a eo, von duprin series 33, vonduprin 33
- Product Model:
- 33A/35A-3'
- Collection:
- 33 & 35 Series
- Door Hand Direction:
- Non-Handed
- Door Thickness Range:
- 1-3/4"
- Product Size:
- 36"
- Dogging Configuration:
- Hex Key Dogging
- Product Dimension:
- 8-3/16" x 1-9/16" x 2-13/32"
- Fire Rating:
- No
- Product Projection:
- 3-13/16"
- Product Style:
- Push Pads
- Product Category:
- Exit Devices and Trim
- Department:
- Door Hardware
Parts & Accessories
Von Duprin 33AEO 3 US26D – Frequently Asked Questions
1) Will a Von Duprin 33A-3ft rim exit device fit a narrow stile aluminum storefront door?
Narrow stile is exactly what the 33A is built for. It mounts on stiles as narrow as 1-3/4 inches, and the 3ft device is sized for a 36 inch door. It is non-handed, so one device covers a left or right hand opening. Allow for the push pad projecting 3-13/16 inches off the face of the door when you are checking clear egress width in a corridor or vestibule. Door thickness has to be 1-3/4 inches.
2) Can the Von Duprin 33A exit device go on a 2 inch or 2-1/4 inch thick door?
No. The 33A is a single thickness device, rated for 1-3/4 inch doors only, and the fastener pack it ships with covers 1-3/4 inch and 2-1/4 inch wood/metal door applications rather than extending the device rating. For a thicker leaf, look at a narrow stile device with a published range: the Adams Rite 8800 Series covers 1-3/4 to 2-1/4 inches, and on the wide stile side the SDC S6136 covers 1-3/4 to 2 inches and the DORMA 9300 Series covers 1-3/4 to 2-1/4 inches.
3) I have a pair of doors with no mullion. Will a Von Duprin 33A work?
Only with something for the latch to catch. The 33A is a rim device: its latchbolt throws 3/4 inch into a strike at the lock stile, which means a pair needs either a removable mullion or a strike mounted on the inactive leaf. On a pair where both leaves have to swing free and there is nothing in the middle, a vertical rod device is the right type instead, since it latches at the head and the sill. The Hager 4601 Series is a narrow stile concealed vertical rod device in 36 inch if you want to stay narrow stile.
4) What trim do I order with a Von Duprin 33A to get back in from outside?
The trim function is picked with the device. Exit only (EO) gives you push to exit with no outside operation at all. NL is night latch, key retracts the latch, and NL-OP adds the outside pull. L is lever trim, with L-BE (blank escutcheon) and L-DT (dummy trim) variations. Thumbturn trims cover T, T-BE, TL and TL-BE, and DT is straight dummy trim. Pick EO for a stair or exit-only door, NL or NL-OP for a service door someone needs to key back into, and lever trim where the door is used in both directions.
5) Can the Von Duprin 33A be tied into a card reader or access control system?
It can. QEL quiet electric latch retraction lets the access control system pull the latch back so the door pushes open with no key or trim operation, and it is the quieter option where the door is in an occupied space. For monitoring, RX is a request-to-exit switch that signals the panel when someone pushes the pad, and LX is a latchbolt monitor that reports the actual bolt position. RX and LX are commonly ordered together when the security integrator needs both the egress signal and door secure status.
6) The leaf is a wood door. Which rim exit device works there instead of the Von Duprin 33A?
Go to Adams Rite. The 8700 Series at 30 inches is a Grade 1 narrow stile rim exit device with starwheel interlocking that lists wood door compatible, and the 3700 Series at 30 inches is the fire rated Grade 1 narrow stile device with the same wood door compatibility. The Von Duprin 33A-3ft is a commercial device for a 1-3/4 inch leaf and its wood door compatibility is No, so a wood leaf sends you to the Adams Rite pair.
7) Which narrow stile rim exit device should I use on a fire rated opening?
The Adams Rite 3700 Series is the narrow stile answer: a Grade 1 fire rated rim exit device at 30 inches with starwheel interlocking, and it is listed wood door compatible. If the opening is a 36 inch leaf, the Orca OED85 Series is a 36 inch fire rated rim device in exit only, and the Marks USA M9900F is a 36 inch fire rated rim device, exit only, with a panic protector end cap. The Dexter ED1000-R-F is a Grade 1 fire rated rim device as well. The Von Duprin 33A-3ft is UL listed for panic exit hardware under ANSI/UL 305.
8) What narrow stile rim exit device from another brand matches the Von Duprin 33A-3ft on a 36 inch door?
Three come closest. The Corbin Russwin ED4200 is a Grade 1 narrow stile rim exit device at 36 inches for a 1-3/4 inch door, offered exit only or set up to accept trim. The Falcon 19-R is Grade 1 narrow stile at 36 inches on a 1-3/4 inch door in an exit only build. The Arrow 4800 is a 36 inch narrow stile rim device for 1-3/4 inch doors, also exit only. All three land on the same 1-3/4 inch door leaf the 33A-3ft is built for, and the 33A-3ft itself is non-handed with hex key dogging as its standard dogging configuration.
9) Is an SDC MSB550 or PSB560 bar a substitute for a Von Duprin 33A rim device?
No, they solve a different problem. The 33A-3ft is a mechanical rim device with a 3/4 inch latch throw that throws into a strike and holds the door. The SDC MSB550 is a 36 inch mechanical switch bar that releases an electromagnetic lock, and the SDC PSB560 SureExit is a 36 inch pressure sense bar with tri-failsafe technology; both are offered for narrow or wide stile doors. The Securitron EMB is an electromechanical exit bar. Those bars signal a lock to release rather than latching the opening themselves, so they belong on a door already secured by the lock they control.
10) Can a Von Duprin 33A be dogged down so the door pushes open freely during business hours?
Yes. Hex key dogging is the standard configuration, so a hex wrench holds the pad depressed and the latch retracted for open hours. If you need to see at a glance whether a door is dogged, the CDSI and HDSI security dogging indicator options add a visual indicator. Dogging is a fair option here because the 33A is not a fire rated device; fire exit hardware cannot be mechanically dogged.
11) Does Von Duprin make a 33A version that meets the 5 pound ADA operating force requirement?
The AX accessible option does. Ordered with AX, the device is certified to 5 lb. force per the 2010 ADA standard, Chapter 404.2.7, and the 2013 California Building Code, Chapter 11B-309.4. Specify AX up front on facilities where accessible operating force is on the spec, healthcare, schools, government buildings and anything going into California.
12) Is there a delayed egress option for the Von Duprin 33 Series?
The CX CHEXIT option is the delayed egress build. It holds the door for 15 seconds with a nuisance alarm before releasing, and it meets NFPA and IBC delayed egress requirements. That is the configuration to quote when a facility wants to slow an unauthorized exit at a stockroom, a behavioral health unit, or a retail back door without blocking egress.
13) What is the difference between the Von Duprin 33A and the 35A?
Case appearance. The 33A has a grooved case and the 35A is the smooth case version; both run the same push pad platform, so function, trim and options carry across. The case itself measures 8-3/16 x 1-9/16 x 2-13/32 inches. Distributors ordering a match to existing doors in a building should confirm which case profile is already hanging, since that is the visible difference on the door.
14) What height do you mount a Von Duprin 33 Series exit device on the door?
Device centerline is 39-13/16 inches from the finished floor. That number matters for two reasons: it keeps the push pad within the height range the code officer expects, and it lets you line new devices up with the ones already installed when you are replacing hardware door by door across a building. The device ships with 1-3/4 inch and 2-1/4 inch wood/metal door fasteners plus SNB, so the mounting hardware for a standard install is in the box.
15) Should I use a narrow stile rim device like the Von Duprin 33A or a wide stile device?
It comes down to the stile you have. The 33A is a narrow stile device that goes down to a 1-3/4 inch stile, which is what aluminum storefront and glass entrance doors give you. On a hollow metal door with a full width lock stile, a wide stile device gives you a longer push pad and more pad travel for the same 36 inch leaf. Grade 1 wide stile rim options include the Corbin Russwin ED5200 in 36 inch, the BEST Precision 2101 Series in 36 inch, and the Detex 10 Advantex Series in 36 inch. Do not fit a wide stile device to a narrow stile door; the case will not land on the stile.
16) What is a comparable narrow stile Grade 1 rim exit device if the Von Duprin 33A is not available?
For a 36 inch narrow stile opening on a 1-3/4 inch door, the closest equivalents are the Corbin Russwin ED4200, Grade 1 narrow stile rim, 36 inch, 1-3/4 inch door, exit only or accepts trim, and the Falcon 19-R, Grade 1 narrow stile rim, 36 inch, 1-3/4 inch door, exit only. Detex 40 Advantex is the extra heavy duty Grade 1 narrow stile choice where the door takes abuse. All are non-fire-rated like the 33A, so none of them solves a labeled opening.
17) What rim exit device do I order if the door is 48 inches wide rather than 36?
The Von Duprin 33A-3ft is sized for a 36 inch door. For a 48 inch leaf, the Dexter ED1000 Series is offered as a 4 foot Grade 1 rim exit device. The Corbin Russwin ED3200 is a 48 inch Grade 1 crossbar rim device for a 1-3/4 inch wide stile door. The Marks USA M9900F comes in a 48 inch fire rated exit only build. Cal-Royal's 5500 is a 48 inch Grade 2 push bar rim device, and the Sargent 2828 is a Grade 1 reversible rim device for a 48 inch minimum door width.
18) The door is narrower than 36 inches. Which rim exit device is sized for it?
The Von Duprin 33A-3ft is a 36 inch device. Below that, Adams Rite runs 30 inch narrow stile rim devices: the 8700 Series and the 8800 Series are both Grade 1, and the 3700 Series is the Grade 1 fire rated version. Design Hardware offers 33 inch rim devices with hex key dogging in the 1000R heavy duty and 2000R standard duty. Arrow's FS1250 is a 32 inch fire rated rim device for a 1-3/4 inch door.
19) My door has a wide stile, not a narrow one. What Grade 1 rim exit device fits that?
The Von Duprin 33A-3ft is a narrow stile device that fits stiles as narrow as 1-3/4 inch, which means it also seats on wider stiles, but the wide stile devices are built around the larger face. The Corbin Russwin ED5200 is a 36 inch Grade 1 wide stile rim device for a 1-3/4 inch door, offered exit only or accepting trim. The TownSteel ED1100 is a 36 inch Grade 1 heavy duty wide stile rim device. The Detex 10 Advantex is a 36 inch Grade 1 wide stile rim device at an extra heavy duty level, and the DORMA 8300 Series is a Grade 1 wide stile panic rim device.
20) What rim exit device comes electrified for access control instead of a mechanical-only device?
The Von Duprin 33A-3ft is field-configurable with QEL electronic latch retraction and RX request-to-exit and LX latchbolt monitoring switches. Among other brands, the Dormakaba E2103 is a 36 inch electrified rim exit device supplied with 4908A trim in an 08 classroom function. The SDC Spectra S6136 is a 36 inch electrified architectural rim exit device on a 4 inch wide stile for 1-3/4 inch to 2 inch doors. The Sargent 12-8810 is a fire rated wide stile rim device with RX and motorized electric latch retraction.
21) I need a key-outside night latch function on a narrow stile aluminum door. What are my options?
The Von Duprin 33A-3ft is ordered in NL night latch and NL-OP night latch with optional pull trim functions. From another maker, the Sargent 8504 is a Grade 1 narrow stile rim exit device built specifically in the night latch function. Both are narrow stile devices, so either suits a stile-and-rail aluminum leaf.
22) Is there a lighter duty rim exit device than the Grade 1 33A for a low traffic interior door?
The Von Duprin 33A-3ft is certified Grade 1. If the opening does not call for that, the Cal-Royal 5000 is a 36 inch rim exit device with a touch bar on a Grade 2 chassis at a heavy duty level, and the Cal-Royal 5500 is the 48 inch Grade 2 push bar version. The Design Hardware 2000R is a 33 inch standard duty wide stile rim device with hex key dogging, and the Hager 4701 Series is a 36 inch standard duty rim device carrying Grade 1 BHMA certification.
23) What do I put on the inactive leaf where the bar only needs to match the working device?
The Detex Advantex 00 Series is a dummy exit device in wide stile at a Grade 1 build, made to sit on a leaf with no latching function. The Sargent 12-8810 is a fire rated wide stile device in a dummy function. On the Von Duprin side, the 33A-3ft carries DT dummy trim and L-DT lever dummy trim among its trim functions, which is dummy trim on the outside of a working device rather than a non-latching bar.
24) Is an SDC switch bar the same thing as a Von Duprin 33A panic device?
No, and swapping one for the other changes how the door secures. The 33A is a mechanical rim device with its own latchbolt, 3/4 inch throw, that holds the door shut on its own. The SDC MSB550 Series mechanical switch bar releases an electromagnetic lock, and the SDC SureExit PSB560 pressure sense bar works the same way, as a release for a separate locking device. If your opening has no maglock, a switch bar leaves the door with nothing keeping it closed.
25) What finishes does the Von Duprin 33A rim exit device come in for matching existing doors?
Ten finishes are offered on the 33A: 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. For a property manager standardizing a building, 628 aluminum and 710 dark bronze anodized are the ones that line up with typical storefront framing, and 626 satin chrome is the common match on interior commercial openings.
26) Which of the comparable rim devices are crossbar rather than push pad?
The Von Duprin 33A-3ft is a push pad device. If the specification calls for a crossbar, the CRL Jackson 1095 Series is a 48 inch crossbar rim panic device in wide stile, exit only, and the Corbin Russwin ED3200 is a 48 inch Grade 1 crossbar rim device for a 1-3/4 inch wide stile door. Staying with a pad, the CRL Jackson 1095P is the paddle version of the 1095, and the CRL Jackson 1295 Series is a non-handed push pad rim panic device in wide stile for a 1-3/4 inch door.
27) Which narrow stile rim exit devices list an extra heavy duty level for an abusive opening?
The Detex 40 Advantex Series is a Grade 1 narrow stile rim exit device carried at an extra heavy duty level. In wide stile, the Detex 10 Advantex is a 36 inch Grade 1 device at the same extra heavy duty level. At a heavy duty level in narrow stile, the Dormakaba QED200 is a Grade 1 36 inch device with a 7 foot rod and the Stanley QED200 is a Grade 1 narrow stile device with hex key dogging. The Von Duprin 33A-3ft is Grade 1 with hex key dogging and an impact resistant end cap kit available as a service part.
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