Von Duprin 9975NL-F 3 US28 Grade 1 MTS Exit Device 628

Von Duprin 9975NL-F 3 US28 Grade 1 Mortise Exit Device 628 is a robust solution designed for both single and double doors, ensuring safety and compliance with rigorous standards. This Grade 1 mortise exit device measures 36 inches and is UL listed for panic exit hardware, making it an ideal choice for commercial applications. Featuring a fire-rated night latch function, the device includes an escutcheon pull trim and is designed with less dogging for convenience. Its satin aluminum clear anodized finish not only enhances aesthetic appeal but also ensures durability in high-traffic environments. The device is field reversible, allowing for easy installation without removing the lock from the door. The 9975 series fits stock hollow metal doors with an 86 cutout, compatible with door stiles as narrow as 4 3/4 inches. With a 3/4-inch anti-friction latch bolt and a non-handed auxiliary bolt for deadlocking, security is paramount. Additional specifications include adjustable bevel faceplate dimensions and compatibility with door thicknesses ranging from 1-3/4 to 2-1/4 inches. This device is backed by a three-year limited warranty, offering peace of mind alongside its impressive functionality. Choose the Von Duprin 9975NL-F for a reliable and efficient exit solution.

Grade 1 Mts Exit Device 628

Grade 1 Mortise Exit Bar, 36" Device, Fire Rated, Night Latch Function, Escutcheon Pull Trim, Less 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