Von Duprin LD99NL 3 Grade 1 Ri...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,725.00
$1,750.70
Von Duprin Grade 1 Rim Exit Bar, Wide Stile Pushpad, 36" Device, Nightlatch Function, Escutcheon Pull, Less Dogging

Von Duprin LD99NL 3 Grade 1 Rim Exit Device, Wide Stile Pushpad, 36" Nightlatch Function with Escutcheon Pull, Less Dogging

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Model: LD99NL 3 26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,725.00
$1,750.70
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Von Duprin LD99NL 3 Grade 1 Rim Exit Device, Wide Stile Pushpad, 36" Nightlatch Function with Escutcheon Pull, Less Dogging

Heavy-Duty 99 Series Wide Stile Rim Exit Device for Institutional and Commercial Applications

The Von Duprin LD99NL 3 is a Grade 1 certified rim exit device from the renowned 98/99 Series, featuring a wide stile heavy-duty pushpad designed for 36" door applications. This device is configured with Nightlatch function, an escutcheon pull, and the Less Dogging (LD) option, making it an ideal solution for institutional environments including higher education, K-12 schools, hospitals, hospitality, and government buildings. The 99 Series is distinguished by its grooved mechanism case, and its modular design allows the device to be upgraded over time to keep pace with changing technology and evolving facility needs. Certified to ANSI/BHMA A156.3 2014 Grade 1 standards, this exit device delivers the highest level of industry-recognized performance and reliability.

Professional Features & Benefits

  • Door Width Compatibility: Specifically designed for 36" door applications with a wide stile pushpad configuration, ensuring proper fit and reliable operation in standard commercial door openings.
  • ANSI/BHMA Grade 1 Certified: Certified to ANSI/BHMA A156.3 2014 Grade 1 standards—the highest industry certification—confirming suitability for high-traffic institutional and commercial applications.
  • Multi-Standard Certifications: Meets ANSI/UL 305, CAN/ULC-S132, and for fire-rated configurations, ANSI/UL 10C and CAN/ULC-S104, providing broad compliance across a range of building code requirements.
  • Nightlatch Function with Escutcheon Pull: The NL (Night Latch, key retracts) function combined with an escutcheon pull provides controlled outside entry via key while always allowing free egress from the interior, ideal for secured institutional doors.
  • Less Dogging (LD) Configuration: The Less Dogging option removes the dogging mechanism, ensuring the latchbolt is always active and the door remains secure—a critical feature for fire-rated and high-security applications.
  • Modular Design for Future Upgrades: The 98/99 Series modular architecture allows the device to be upgraded with mechanical, electromechanical, and finish options—including electric latch retraction, latchbolt monitoring, request-to-exit switches, and more—without full replacement.
  • Wide Range of Field-Configurable Options: Compatible with a broad array of mechanical options (cylinder dogging, quiet mechanical, hurricane-rated, ADA-compliant AX option, pneumatic latch retraction) and electromechanical options (EL, QEL, RX, LX, SS, CX delayed egress, ESL emergency lockdown, ALK alarm kit) for maximum facility flexibility.
  • Designed for High-Use Institutional Environments: Engineered specifically for high use and abuse in demanding settings such as schools, hospitals, and government facilities where dependable daily performance is essential.

Technical Specifications

  • Subcategory: Parts and Accessories
  • Product Group: Exit Device Trims
  • Product Subgroup: Parts and Accessories
  • Product Category: Exit Device
  • Department: Door Hardware

Professional Applications

  • Higher Education Facilities
  • K-12 Schools and Educational Institutions
  • Hospitals and Healthcare Facilities
  • Hospitality and Hotel Properties
  • Government and Municipal Buildings
  • Commercial Office Buildings
  • Industrial and Institutional Facilities

Why Choose Von Duprin Quality?

Von Duprin 98/99 Series exit devices are certified to ANSI/BHMA A156.3 2014 Grade 1—the highest industry standard—and comply with ANSI/UL 305 and CAN/ULC-S132, ensuring proven performance in the most demanding commercial and institutional environments. The modular design and extensive field-configurable options mean this device can adapt to a facility's changing needs without requiring full replacement, delivering long-term value and reliability. Engineered for high use and abuse in schools, hospitals, and government buildings, Von Duprin exit devices represent a trusted standard in commercial door hardware.

Manufacturer Resources

Von Duprin 98/99 Series Catalog

Product Specs

Subcategory:
Parts and Accessories
Product Group:
Exit Device Trims
Product Subgroup:
Parts and Accessories
Product Category:
Exit Device
Department:
Door Hardware

Von Duprin LD99NL 3 26D – Frequently Asked Questions

1) Will the Von Duprin LD99NL 3 fit a 36 inch door?
Yes. The LD99NL 3 is the 3 foot device size, built for 36 inch wide openings with a wide stile pushpad. Wide stile means the door needs a stile broad enough to carry the mechanism case and the escutcheon trim on the outside; narrow aluminum storefront stiles are the wrong application for it.
2) What does the NL nightlatch function actually do on a Von Duprin 99 rim device?
NL means key retracts. From the outside, a cylinder in the escutcheon pull retracts the latch so someone with a key can enter; the trim itself never operates the latch on its own, so the door stays locked to anyone without a key. From the inside the pushpad always gives free egress, no key, no tools. That is the usual setup for a secured exterior institutional door where staff carry keys.
3) What does Less Dogging (LD) mean, and why would I want it?
LD removes the dogging mechanism entirely, so the pushpad cannot be held down to keep the latch retracted. The latchbolt is always active and the door relatches every time it closes. You order LD when the opening is fire rated (dogging is not permitted on a fire door) or when you simply do not want staff able to leave an exterior door in a push-pull state. If you do want to dog the door open during business hours, LD is the wrong configuration.
4) Can I use a rim exit device like this on a pair of doors?
A rim device latches into a strike on the frame or, on a pair, into a removable mullion mounted between the two leaves. With no mullion, a rim device has nothing to latch into on the inactive leaf. For a pair with a clear opening and no mullion, you want a surface vertical rod device instead, which latches at the head and the sill. The 99 Series covers both types.
5) Is the Von Duprin LD99NL 3 fire rated?
The 98/99 Series meets ANSI/UL 305 and CAN/ULC-S132 for panic hardware, and in fire rated configurations ANSI/UL 10C and CAN/ULC-S104. The device is also certified to ANSI/BHMA A156.3 2014 Grade 1. Because the LD option deletes dogging, this configuration is the one suited to a fire door, where hold-open dogging is prohibited.
6) Does a cylinder come with the LD99NL 3, or do I have to order one separately?
The nightlatch function needs a rim cylinder in the escutcheon to retract the latch from the outside, and cylinders are keyed to the facility, so they are specified separately from the device. A locksmith standardizing a building will order the rim cylinder in the keyway and keying system already in use there. The device itself ships with the escutcheon pull trim.
7) Can I add electric latch retraction or a request-to-exit switch to a 99 Series device later?
Yes. The 98/99 Series is modular, so the device can be upgraded with mechanical, electromechanical, and finish options rather than replaced. Available options include EL and QEL electric latch retraction, RX request-to-exit, LX latchbolt monitoring, SS, CX delayed egress, ESL emergency lockdown, and the ALK alarm kit, plus mechanical options such as cylinder dogging, quiet mechanical, hurricane rated, ADA-compliant AX, and pneumatic latch retraction. Note that cylinder dogging is not compatible with an LD device as configured.
8) How do I tell a Von Duprin 99 apart from a 98 on an existing door?
The 99 Series has a grooved mechanism case; the 98 is the smooth-case version of the same platform. Functionally they are the same family, so if your building is already standardized on 99 devices, ordering the 99 keeps the appearance consistent across openings.
9) Is this device suitable for a high traffic school or hospital exterior door?
That is exactly what it is built for. Grade 1 under ANSI/BHMA A156.3 2014 is the highest cycle and strength classification for exit devices, and the 98/99 Series is engineered for high use and abuse in higher education, K-12, hospitals, hospitality, and government buildings. The NL function plus LD keeps the door locked and relatching around the clock while egress stays free.
10) What finishes does the LD99NL 3 come in?
Ten finishes: 26D satin chrome, US26 bright chrome, US28 satin aluminum clear anodized, US3 bright brass, US4 satin brass, US10 satin bronze clear coated, US10B dark oxidized satin bronze oil rubbed, 643E aged bronze, 313 dark bronze anodized aluminum, and 315 black anodized aluminum. If you are matching existing openings in a building, 26D and US28 are the usual institutional standards.
How fast can I get the Von Duprin LD99NL 3 26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Von Duprin LD99NL 3 26D come with a warranty?
Absolutely. The Von Duprin LD99NL 3 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Von Duprin LD99NL 3 26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Von Duprin LD99NL 3 26D from ZenSupply?
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