Von Duprin 9975L-06 4 US28 RHR Grade 1 MTS Exit Device 628

Von Duprin 9975L-06 4 US28 RHR Grade 1 Mts Exit Device 628 delivers robust security and reliable performance for commercial applications. This Grade 1 mortise exit device features a 48" length, ideal for both single and double doors, and is UL listed for panic exit hardware, ensuring safety in emergency situations. Its classroom function with hex dogging provides ease of use while maintaining necessary security. Designed to fit stock hollow metal doors with an 86 cutout and stiles as narrow as 4-3/4", the 9975 series is adaptable to various door configurations. The device includes a field-reversible mechanism, allowing for versatile installation without the need to remove it from the door. Notably, it is equipped with a 3-4" anti-friction latch bolt and a non-handed auxiliary bolt for enhanced deadlocking capabilities. The sleek satin aluminum clear anodized finish not only offers aesthetic appeal but also durability. With ANSI A156.3 – 2001 Grade 1 certification, this exit device is built to withstand heavy use. Ideal for commercial environments, the Von Duprin 9975L-06 is a reliable choice for securing exits while ensuring quick and safe egress.

Grade 1 Mts Exit Device 628

Grade 1 Mortise Exit Bar, 48" 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