Von Duprin 9975L-06 3 US28 LHR Grade 1 MTS Exit Device 628

Von Duprin 9975L-06 3 US28 LHR Grade 1 Mortise Exit Device 628 is engineered for durability and reliability in high-traffic environments. This Grade 1 mortise exit bar features a 36" device length and a classroom function, making it ideal for various commercial applications. With its sleek 06 lever and escutcheon trim, the device combines functionality with a modern aesthetic. Designed to fit stock hollow metal doors with an 86 cutout and stiles as narrow as 4 3/4" (121mm), this device is UL listed for panic exit hardware, ensuring safety during emergencies. The 7500 mortise lock is equipped with a 3/4" (19mm) anti-friction latch bolt that allows for field reversibility without removing it from the door, offering ease of installation and maintenance. The 9975 series is compatible with door widths ranging from 28" to 36" and accommodates door thicknesses of 1-3/4" to 2-1/4". It features hex dogging for secure locking and includes fasteners for both metal and wood doors. With ANSI A156.3-2001 Grade 1 certification and a three-year limited warranty, the Von Duprin 9975L-06 is a trusted choice for professionals seeking dependable exit solutions.

Grade 1 Mts Exit Device 628

Grade 1 Mortise Exit Bar, 36" Device, Classroom Function, 06 Lever with Escutcheon Trim, Hex Dogging, Satin Aluminum Clear Anodized Finish, Field Reversible

9875/9975 Mortise lock device for all types of single or double doors, UL listed for panic exit hardware. Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3⁄4" (121mm). The 7500 Mortise lock is equipped with a 3⁄4" (19mm) anti-friction latch bolt which is field reversible without removing the lock from the door. It has a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel.

Devices are ANSI A156.3 – 2001 Grade 1

The 9975 Series is for all types of single or double doors and is UL listed for panic exit hardware.  Fits stock hollow metal doors with 86 cutout and door stiles as narrow as 4 3 /4" (121mm). 

• 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" x2 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)
• Fasteners & sex bolts (SNB): Includes screw pack for 1 3/4" (44mm) and 2 1/4" (57mm) thick metal or wood do

Resources

• 10 Things You Need to Know About the Von Duprin Chexit
• 98/9975-2 Series Wood Door Template
• 990TP/TP-BE/NL Trim 98/9975 Mortise Lock Device Installation Instructions
• QEL Data Sheet
• Von Duprin Finishes Chart