Von Duprin 98NL-626-48 ALK Alarmed Rim Exit Device 990NL Nightlatch Trim, 48in, Grade 1, Satin Chrome

Von Duprin 98NL-626-48 ALK KIT is an advanced alarmed rim exit device designed to enhance security in high-traffic environments. Built to meet the rigorous demands of institutional applications such as schools, hospitals, and government facilities, this Grade 1 exit device combines durability with innovative technology. Its modular design allows for easy upgrades, ensuring it can adapt to your changing security needs. The device is compatible with single and double doors featuring mullions, and it is UL listed for panic exit hardware. The 48-inch length suits a variety of door sizes, while the satin chrome finish (626/US26D) offers a sleek and modern aesthetic. Installation is simplified with its universal center case and extensive serviceable parts options, making maintenance straightforward. Key features include a deadlocking latch bolt with a ¾-inch throw, field-selectable functionalities, and optional electrical features such as request to exit and alarm exit kits. The device also supports multiple mechanical options for enhanced security. Whether you require an easy-to-use panic device or an integrated alarm system, the Von Duprin 98NL-626-48 ALK KIT delivers a reliable solution for modern security challenges.

KIT - Alarmed Rim Exit Device, 990NL Nightlatch Trim, 48in, Grade 1, 626/US26D Satin Chrome

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