Von Duprin 9975L-NL-07 4 US28 LHR Grade 1 MTS Exit Device 628

Von Duprin 9975L-NL-07 4 US28 LHR Grade 1 Mortise Exit Device 628 offers a robust and efficient solution for commercial door security. Designed with a Grade 1 rating, this 48" exit device features a night latch function, paired with the 07 lever and escutcheon trim, ensuring both functionality and style. The satin aluminum clear anodized finish provides durability while maintaining a sleek appearance. This device is suitable for all types of single or double doors and is UL listed for panic exit hardware, making it an ideal choice for high-traffic areas. Its compatibility with stock hollow metal doors featuring an 86 cutout and a minimum stile size of 4-3/4" (121mm) ensures easy installation. The field-reversible design allows for versatile application without removing the lock from the door. Equipped with a 3-3/4" (19mm) anti-friction latch bolt and a non-handed auxiliary bolt for deadlocking, the 9975L-NL-07 ensures enhanced security. The device centerline is positioned at 39 13/16" (1011 mm), with dimensions that accommodate door thicknesses from 1-3/4" to 2-1/4". The hex dogging mechanism provides additional convenience, making this exit device a reliable choice for any commercial setting.

Grade 1 Mts Exit Device 628

Grade 1 Mortise Exit Bar, 48" Device, Night Latch Function, 07 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