Von Duprin LD9975NL 3 US26 Grade 1 MTS Exit Device 625

Von Duprin LD9975NL 3 US26 Grade 1 Mts Exit Device 625 is a robust and reliable solution designed for both single and double doors. This Grade 1 mortise exit bar features a 36-inch device with a night latch function, complemented by an elegant escutcheon pull trim. Its bright chrome finish not only enhances aesthetics but also ensures durability in high-traffic environments. Engineered for ease of installation, the LD9975NL is compatible with stock hollow metal doors having an 86 cutout and door stiles as narrow as 4 3/4 inches. The unit features a 3/4-inch anti-friction latch bolt, which can be field-reversed without removing the lock from the door, offering flexibility during installation. It includes a non-handed auxiliary bolt for deadlocking, ensuring added security. The exit device meets ANSI A156.3 – 2001 Grade 1 standards and is UL listed for panic exit hardware, making it suitable for commercial applications. With a projection of 3 13/16 inches when neutral, this device balances accessibility and safety. The LD9975NL is a dependable choice for those seeking a combination of functionality, security, and style in their door hardware solutions.

Grade 1 Mts Exit Device 625

Grade 1 Mortise Exit Bar, 36" Device, Night Latch Function, Escutcheon Pull Trim, Less Dogging, Bright Chrome 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