Von Duprin 99NL-628-48 ALK KIT is an advanced alarmed rim exit device that combines security with flexibility, making it ideal for high-traffic environments such as schools, hospitals, and government facilities. This Grade 1 device features a robust 48-inch anodized aluminum finish (628/US28), ensuring durability and reliability in demanding situations. Designed for ease of installation on single and double doors, the 99NL model includes features that support a variety of configurations. The modular design allows for straightforward upgrades, ensuring the device can adapt to evolving security needs. The built-in alarm exit kit enhances security by alerting personnel to unauthorized exits. The deadlocking latch bolt provides a secure 3/4-inch throw, while the hex key dogging feature enhances usability without compromising safety. The device is UL listed for panic exit hardware, certified to ANSI/BHMA A156.3 standards, and supports multiple electrical options, including request-to-exit and electric locking capabilities. With a centerline height of 39-13/16 inches from the finished floor, installation is straightforward. The 99NL-628-48 ALK KIT is a reliable solution for those seeking a blend of security and ease of use in their exit hardware.

KIT - Alarmed Rim Exit Device, 990NL Nightlatch Trim, 48in, Grade 1, 628/US28 Anodized Aluminum

98 and 99 rim exit devices for all types of single and double doors with mullion, UL listed for panic exit hardware. Devices are certified to ANSI/BHMA A156.3 2014, grade 1. The 98 device has a smooth mechanism case and the 99 device has a grooved case. The rim device is non-handed except when the following device options are used: SD (special dogging), -2 (double cylinder) or SS (signal switch). Covers stock hollow metal doors with 86 or 161 cutouts on single doors (may cover cutouts on pairs – consult template).

Features:

• Built-in flexibility with a universal center case that provides migration path to new technology
• Highly modular allowing product upgrades to meet customer’s changing needs
• Easy maintenance with extensive serviceable parts options
• Modular design allows ability to upgrade device to keep up with changing technology and meet a facility's changing needs
• Designed for high use and abuse in institutional applications like schools, hospitals and government facilities
• A variety of field-configurable options and retrofit kits available

Specifications:

• Device Functions: Device ships EO/DT/NL; field selectable; for TP, K or L remove NL drive screw from device
• Device Lengths:
• 3' - 2'4" to 3' (711mm to 914 mm) Door size
• 4' - 2'10" to 4' (864 mm to 1219 mm) Door size
• Device Centerline from Finished Floor:
• 39-13/16" (1011 mm)
• 39-11/16" (1008 mm) with mullion
• Center case dimensions: 8" x 2 3⁄4" x 2 3⁄8" (203mm x 70mm x 60mm)
• Mechanism case dimensions: 2 1⁄4" x 2 1⁄4" (57mm x 57mm)
• Projection:
• Push bar neutral – 3-13/16" (97 mm)
• Push bar depressed – 3-1/16" (78 mm)
• Latch Bolt: Deadlocking, 3⁄4" (19mm) throw
• Fasteners and Sex Bolts (SNB): Includes screw pack for 1 3⁄4" (44mm) and 2 1⁄4" (57mm) thick metal or wood doors. (optional 425 SNB available)
• Electrical Options:
• LX: Latch bolt monitor switch
• RX: Request to exit
• RX2: Double request to exit
• E: Electric locking and unlocking trim
• EL: Electric latch retraction
• ESL: Emergency secure lockdown
• QEL: Quiet electric latch retraction
• SS: Signal switch
• CX: Chexit delayed exit
• ALK: Alarm exit kit
• WP-RX: Waterproof request to exit
• CON: Allegion Connect
• Mechanical Options:
• -2: Double cylinder
• -2SI: Double cylinder with security indicator
• AX: Accessible device
• GBK: Glass bead kit
• PN: Pneumatic latch retraction
• QM: Quiet mechanical
• SNB: Sex bolts
• SEC: Security screws
• WH: Weep holes
• XP: Extra protection
• Dogging Feature: Hex key dogging standard
• Dogging Options:
• CD: Cylinder dogging
• CD-CX: Chexit cylinder dogging
• CDSI: Cylinder dogging with security indicator
• HDSI: Hex dogging with security indicator
• SD: Special center case dogging
• LD: Less dogging
• DI: Dogging indicator
• CI: Cylinder dogging indicator
• Strikes: 299 – Dull black

Standard Trim:

• EO: No outside trim. Exit only
• DT: Dummy trim. Pull when dogged (not recommended for fire device)
• NL: Night latch
• Key retracts latchbolt
• Rim and 1-1/4" mortise cylinder
• NLOP: Night latch. Key retracts latchbolt, pull required
• TP: Thumbpiece
• Key locks and unlocks
• Rim and 1-1/4" mortise cylinder
• TPBE: Thumbpiece, blank escutcheon. Blank escutcheon always operable (no cylinder, use with DT trim)
• K/L: Knob/Lever
• Key locks and unlocks
• Rim and 1-1/4" mortise cylinder
• Handed, reversible lever
• Electrified lever operation available
• KDT/LDT: Knob/lever dummy trim. Pull when dogged
• KNL/LNL: Knob/lever, night latch
• Key retracts latchbolt
• Rim and 1-1/4" mortise cylinder
• Handed, reversible lever
• KBE/LBE: Knob/lever, blank escutcheon. Always operable (no cylinder)
• TL: Turn lever
• Key locks and unlocks (use with DT trim)
• 1-1/4" mortise cylinder
• TLBE: Turn lever, blank escutcheon. Blank escutcheon always operable (no cylinder, use with DT trim)
• TLOP: Turn lever, optional pull
• HL: Hospital latch
• Key locks and unlocks
• 1-1/4" mortise cylinder

Finishes:

• 605 - Bright brass
• 606 - Satin brass
• 612 - Satin bronze
• 625 - Bright chrome
• 626/626AM - Satin chrome
• 628 - Aluminum, anodized
• 710 - Duranodic dark bronze
• 711 - Matte black/anodized
• 643e - Aged bronze