• 99NL-OP Von Duprin Rim Exit Device - Night Latch Cylinder Assembly

*Actual product and finish may vary

The 99NL-OP is a night latch (Key retracts latchbolt, optional trim required) rim exit device for all types of single and double doors with mullion, UL listed for Panic Exit Hardware. Devices are ANSI A156.3 – 2001 Grade 1.  The 99 device has a grooved mechanism 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).  

All 98 and 99 series exit devices are UL listed for Panic Hardware or Fire Hardware, and are certified to ANSI A156.3, 2001, Grade 1. Many models are also certified for Hurricane Resistant Applications.

110NL standard trim

Specify 110NL-MD for metal doors or 110NL-WD for wood doors.

Von Duprin 98/99 series catalog


  • 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
  • Strikes: 299 – Dull Black Optional Strikes
  • Dogging Feature: Hex key dogging standard
  • Dogging Options: CD Cylinder Dogging; SD Special Center Case Dogging; LD Less Dogging
  • Electric Options: LX Latchbolt Monitor Switch; RX Pushpad Monitor Switch; RX2 Double Pushpad Monitor Switch; E Electric Locking & Unlocking; EL Electric Latch Retraction; SS Signal Switch; CX Chexit Delayed Exit; ALK Alarm Exit Kit, QEL Quiet Electric Latch Retraction
  • Mechanical Options: PN Pneumatic Latch Retraction; -2 Double Cylinder; GBK Glass Bead Kit
  • Fasteners & Sex Bolts (SNB): Includes 1-3/4" (19mm) – 2-1/4" (57mm) Thick Metal or Wood Doors Optional 425 SNB available for device
  • Latch Bolt: Deadlocking, 3/4" (19mm) throw
  • 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: Pushbar Neutral – 3-13/16" (97 mm) Pushbar Depressed – 3-1/16" (78 mm)

Von Duprin push pad exit devices are available in two external surface styles, designated 98 Series and 99 Series. The two styles are mechanically and dimensionally identical and provide a wide selection of appearance options.

Latch Bolt
Deadlocking latchbolt provides security and improved performance at standard device cost.

The Quiet One®
A fluid dampener decelerates the pushpad on its return stroke and eliminates most noise associated with exit device operations. Furnished on all 98/99™ series exit devices.

Options & Accessories  – see catalog for detailed information

Cylinder Dogging

Electric Latch Retraction

Request to Exit Switch

LBR – Less Bottom Rod

Alarm Kits

99NL-OP Von Duprin Rim Exit Device - Night Latch Cylinder Assembly

  • $825.00

Available Options

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