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Von Duprin 373L-BE Lever Blank Escutcheon Exit Device Trim for 88 Series - Grade 1 Heavy Duty
370 Series Control Trim for Versatile 88 Series Exit Device Configurations
The Von Duprin 373L-BE is a heavy-duty, Grade 1 lever trim with blank escutcheon, engineered as part of the 370 Series Control Trims for seamless compatibility with the Von Duprin 88 Series Exit Device. Designed for commercial applications, this Always Operable (No Cylinder) lever trim delivers the flexibility and modular adaptability that demanding facilities require. Certified to ANSI/BHMA A156.3 2014 Grade 1 standards and compliant with ANSI/UL 10C (fire-rated configurations), ANSI/UL 305, CAN/ULC-S104 (fire-rated configurations), and CAN/ULC-S132, this trim is built to meet rigorous code and performance requirements across a wide range of commercial environments.
Professional Features & Benefits
- ANSI/BHMA Grade 1 Certification: Certified to ANSI/BHMA A156.3 2014 Grade 1, confirming heavy-duty performance and long-term reliability for high-traffic commercial applications.
- Fire-Rated Compliance: Meets ANSI/UL 10C and CAN/ULC-S104 requirements for fire-rated configurations, supporting code-compliant installation in fire-rated door assemblies.
- Multi-Standard Certification: Also listed to ANSI/UL 305 and CAN/ULC-S132, providing broad compliance coverage for diverse commercial and institutional projects.
- Always Operable Function (No Cylinder): Configured for Always Operable use with no cylinder required, ensuring unrestricted egress at all times for straightforward, code-friendly operation.
- Blank Escutcheon Design: The blank escutcheon trim provides a clean, unobstructed appearance and allows for flexible field adaptation as facility needs evolve.
- Modular 370 Series Platform: Part of Von Duprin’s 370 Series Control Trims, designed with modularity in mind to allow easy addition of new options and upgrades as mechanical and electronic technology converge.
- Investment Protection: Von Duprin’s versatile modular design enables cost-effective upgrades to existing 88 Series devices, protecting your hardware investment well into the future.
- 88 Series Compatibility: Engineered specifically for the Von Duprin 88 Series Exit Device, with numerous trim options and configurations available to serve a wide variety of facility needs.
Technical Specifications
- Subcategory: Exit Device Trim
- Series: 370 Series
- Grade: Grade 1
- Duty Level: Heavy Duty
- Function Description: Always Operable (No Cylinder)
- Product Group: Exit Devices and Trim
- Product Subgroup: Exit Device Trim
- Product Type: Exit Device Trim
- Commercial/Residential: Commercial
- Handle Type: Lever
- Product Model: 373L-BE
- Door Hand Direction: Yes
- Product Category: Exit Devices and Trim
- Department: Door Hardware
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Von Duprin Quality?
Von Duprin exit device trim products deliver professional-grade reliability backed by ANSI/BHMA A156.3 2014 Grade 1 certification and compliance with ANSI/UL 10C, ANSI/UL 305, CAN/ULC-S104, and CAN/ULC-S132 standards. The 370 Series modular platform is engineered for heavy-duty commercial use, offering the flexibility to upgrade and adapt existing 88 Series installations cost-effectively as facility needs change. Trusted by security and door hardware professionals, Von Duprin products are built for demanding commercial environments where dependable, code-compliant performance is essential.
Manufacturer Resources
Von Duprin 88 Series Catalog
Product Specs
- Subcategory:
- Exit Device Trim
- Series:
- 370 Series
- Grade:
- Grade 1
- Duty Level:
- Heavy Duty
- Function Description:
- Always Operable (No Cylinder)
- Product Group:
- Exit Devices and Trim
- Product Subgroup:
- Exit Device Trim
- Product Type:
- Exit Device Trims
- Commercial/Residential:
- Commercial
- Handle Type:
- Lever
- Product Model:
- 373L-BE
- Door Hand Direction:
- Yes
- Product Category:
- Exit Devices and Trim
- Department:
- Door Hardware
Von Duprin VON-373L-BE-626 – Frequently Asked Questions
1) Will the Von Duprin 373L-BE lever trim work on my 88 Series exit device?
The 373L-BE is built for the Von Duprin 88 Series exit device specifically, as part of the 370 Series control trim line. It won't mount to a 98/99 or a 33/35A device, and it isn't a substitute for another maker's trim. If the device on your door is an 88 Series mortise or rim unit, this is the matching lever control trim.
2) Does the 373L-BE exit trim take a cylinder, or is it always unlocked from the outside?
Always Operable, no cylinder. The lever retracts the latch from the outside at all times, and the escutcheon is blank, so there is no key control and nothing to key. If you need the outside side to lock, this is the wrong trim. A keyed or storeroom function trim is what that opening calls for.
3) Do I have to specify handing when ordering the Von Duprin 373L-BE trim?
Yes, and it isn't field reversible on the order form. You pick either RHR (right hand reverse) or LHR (left hand reverse) at the time of purchase. Exit devices hang on outswinging doors, so the handing you want is almost always a reverse hand. Stand outside the door: if the hinges are on your right and the door swings toward you, it's RHR.
4) Is the 373L-BE trim approved for a fire rated door?
It carries ANSI/UL 10C and CAN/ULC-S104 compliance for fire rated configurations, along with ANSI/UL 305 and CAN/ULC-S132 panic listings. That covers a fire rated door assembly, provided the 88 Series device it mounts to is itself a fire rated version. Worth noting for anyone comparing options: several lever escutcheon trims from other brands, including the Accentra 426F and 446F, carry no fire rating.
5) I need a lever trim on an exit device where a key has to control the outside lever - what should I use instead of the Von Duprin 373L-BE?
The 373L-BE is an Always Operable (No Cylinder) lever trim, so the outside lever is always free and there is nothing for a key to control. For keyed control, the Sargent 704ET is a night latch lever trim, Grade 1 and Heavy Duty, with field reversible operation, and the Sargent 704-ETL is a night latch lever trim with a key retract function. If the opening calls for classroom function instead, the Falcon 510L is a Heavy Duty classroom function lever trim for the 24/25 Series, and the Accentra 446F is a classroom function Augusta lever escutcheon trim. Match the trim to the exit device family you already have on the door.
6) I need the outside lever on an exit device to be controlled by an access control system - what replaces the Von Duprin 373L-BE?
The 373L-BE is a mechanical Always Operable trim with no cylinder and no electrical control. For access control, Command Access builds electrified exit trims with 12V/24V operation and fail safe or fail secure options: the 230L is an electrified version of the Von Duprin 230L trim for V96, 36 and 23 series devices, and the ET15, ET25 and ET26 cover other device families, with the ET26 offering Grade 1 construction and a field reversible design. Falcon also offers the 510L-FSA/FSE, an electrified Heavy Duty lever trim for the 25 Series. Dormakaba covers standalone credential control with the E-Plex 201U electronic pushbutton exit trim and the PowerPlex P201U for rim, mortise and SVR devices.
7) Is the Detex 02BN dummy trim a substitute for the Von Duprin 373L-BE?
They look alike and are not the same thing. The Detex 02BN is a dummy S-lever trim with blank escutcheon for Value Series exit devices - a dummy lever does not retract anything, it is a fixed pull. The Von Duprin 373L-BE is an Always Operable (No Cylinder) lever trim for the 88 Series exit device, where turning the lever operates the device. If the outside lever needs to open the door, the dummy will not do it; if you only need a matching lever on a door that is exit-only from the outside, the dummy is the right shape of part.
8) Does the blank escutcheon on the Von Duprin 373L-BE mean the same thing as a nightlatch trim?
No. Blank escutcheon means the escutcheon plate has no cylinder opening, and the 373L-BE runs Always Operable with no cylinder. A nightlatch trim is the opposite arrangement - the outside is normally locked and a key retracts the latch. Examples in that family are the Corbin Russwin VT957ET nightlatch escutcheon trim for the ED5000 Series, the Dorma YR03R wide stile escutcheon lever trim with nightlatch function less cylinder, the Accentra 121NL nightlatch trim, and the Dexter ED1500 nightlatch trim with raised lip pull plate. If security from the outside is the requirement, a blank escutcheon trim will not deliver it.
9) I need to add a keyed lever to an Accentra exit device - is the Von Duprin 373L-BE the right trim?
No, on two counts. The 373L-BE is engineered for the Von Duprin 88 Series exit device, and it runs Always Operable with no cylinder. For Accentra devices, the 426F is an Augusta lever escutcheon trim for the 6000 and 1800 Series, the AU-441F is a night latch keyed lever trim in the Augusta design, and the 446F is a classroom function Augusta lever trim. Exit trim mounts to a specific device chassis, so the device family is the first thing to confirm before the lever design or finish.
10) What lever designs can I get on the 373L-BE trim?
Seven lever designs are offered on the 373L-BE: 01, 02, 03, 06, 07, 12 and 16. The lever design is a required selection, so if you're matching levers already hanging on other openings in the building, pick the same number you have on the existing Von Duprin trim. The escutcheon plate itself is the same across all of them.
11) What ANSI grade is the Von Duprin 373L-BE lever trim, and will it hold up in a school corridor?
Certified to ANSI/BHMA A156.3 2014 Grade 1, heavy duty. Grade 1 is the top commercial tier under that standard, which is what an education, healthcare or government facility spec normally calls for on an egress opening. If you're standardizing a building on one trim, this one meets the grade without needing a substitution request.
12) What is the difference between a blank escutcheon lever trim and a night latch trim on an exit device?
Blank escutcheon means no cylinder hole in the plate. The 373L-BE lever always retracts the latch from the outside, so the opening is never locked from that side and there's nothing to key. A night latch trim, like the Corbin Russwin VT957ET or the Sargent 704ET, keeps the outside secured and requires a key to retract the latch. Choose blank escutcheon where the outside needs free access during business hours and the device is dogged or the door is otherwise controlled, and a keyed trim anywhere the outside has to stay locked.
13) Can I add a lever to an existing Von Duprin 88 Series device that currently has no outside trim?
That's exactly what the 370 Series is for. The 373L-BE mounts to an installed 88 Series device to add outside lever control without replacing the device itself, which is the cheaper path when the exit device on the door is still sound. You'll need to specify handing and a lever design when you order.
14) What passage function exit device trims are comparable to the Von Duprin 373L-BE for other device brands?
The 373L-BE is Always Operable with no cylinder, which is the same idea a passage trim serves. Corbin Russwin covers it by device family: the 3310AET is passage function trim for the ED3000 Grade 1 series, the x810ET is passage function trim for the ED4000 Grade 1 series, and the x910ET is heavy-duty passage function trim for the ED5200S, ED5200, ED5400 and ED5800 series. Arrow SRX01 is a passage function Sierra lever trim with a rose for the ED910, S1150 and S1250 devices. Marks USA M195N is a lever and rose trim in the M195N series. Pick by the exit device already installed, since exit trim is device-specific.
15) What Grade 1 lever exit trims are alternatives to the Von Duprin 373L-BE for an institutional standard?
The Von Duprin 373L-BE is ANSI/BHMA Grade 1 and Heavy Duty with a lever handle. Grade 1 lever trims among the comparables include the Pamex E9000, a storeroom function L3 lever heavy duty trim for doors 1-3/8 inch to 2 inch thick; the Design Hardware LE08, an entry function trim with a flat lever and escutcheon for 1000R and 2000R devices; the Design Hardware KIL storeroom and KIL entry trims with a Schlage C keyway and flat lever for 1000 and 2000 Series devices; the Dexter ED1500T with a regular lever; and the Sargent 744, a freewheeling trim where the key retracts the latch, for 8700 and 8900 Series surface vertical rod and mortise devices. Note these are keyed or storeroom functions rather than the always operable, no cylinder arrangement of the 373L-BE.
16) Von Duprin 373L-BE versus a thumbpiece trim - which should I specify?
Both give an outside operator on an exit device, and the grip differs. The 373L-BE is a lever trim, which is what accessibility-driven specifications usually call for and what matches lever hardware elsewhere in a building. Thumbpiece options in the comparable range are the Tell EDTHP53 entry function thumbpiece trim for doors 1-3/8 inch to 1-3/4 inch thick, and the Dexter ED1000T-CLRM-TP-NC, a Grade 1 classroom function trim with thumbpiece, pull plate and cylinder, supplied less cylinder. Thumbpiece trims suit traditional or exterior entrance looks; the lever suits a facility standardizing on levers.
17) Which lever trims are field reversible instead of ordered by hand like the Von Duprin 373L-BE?
The 373L-BE is handed and is ordered as right hand reverse or left hand reverse. Among the comparables, the Sargent 704ET night latch lever trim is described as field reversible, and the Command Access ET26 electrified exit trim has a field reversible design. Field reversible trim lets one part cover either hand, which matters when stocking for a multi-door property; a handed trim has to be specified correctly at order time.
18) Is the 373L-BE lever trim suitable for a residential door?
It's a commercial trim for commercial openings, sized and rated for exit devices in offices, schools, hospitals, retail, warehouses, multi-tenant buildings and municipal facilities. It only works on a door that already has a Von Duprin 88 Series exit device, which is not hardware you find on a house. For a multi-family building's common egress doors it fits; for an apartment entry door it does not.
19) What is a lighter-duty alternative to the Von Duprin 373L-BE lever trim?
The Von Duprin 373L-BE is Heavy Duty and ANSI/BHMA Grade 1. Falcon offers two Medium Duty lever trims: the 212L, a 20 Series escutcheon lever trim with blank escutcheon function and shear pin protection, and the 179L, a 1790 Series classroom function lever control trim. Delaney also builds entrance function exterior lever trims in three lever styles - the 500L CT, 500L MD and 500L SD. The Falcon 212L is the closest in function since it is also a blank escutcheon trim; the others are keyed or entrance functions.
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Absolutely. The Von Duprin VON-373L-BE-626 is backed by a manufacturer’s warranty.
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