Von Duprin 3548AEO 4 US28 Grade 1 Narrow CVR Exit Device 628

Von Duprin 3548AEO 4 US28 Grade 1 Narrow CVR Exit 628 is a high-performance concealed vertical rod exit device designed for hollow metal single and double doors. This Grade 1 device features a sleek narrow stile pushpad and is UL listed for panic exit hardware, ensuring reliability in emergency situations. With a length of 48 inches, it is suitable for door sizes ranging from 32 to 48 inches wide. Engineered for ease of use and versatility, the 3548AEO is non-handed, simplifying installation and operation. It includes hex key dogging for convenient locking and unlocking, enhancing security while maintaining accessibility. The robust construction features a satin aluminum clear anodized finish, providing durability and a modern aesthetic. This exit device is adjustable, with vertical rods that can accommodate doors up to 8 feet 4 inches in height, making it an adaptable solution for various commercial applications. The device's deadlocking anti-friction top and bottom bolts offer added security with a ¾ inch to 1½ inch throw. Designed with a one-piece center case cover and smooth mechanism case, it ensures reliable performance and longevity. The Von Duprin 3548AEO is an excellent choice for building professionals seeking a dependable exit solution that combines safety, functionality, and style.

Grade 1 Narrow CVR Exit 628

Grade 1 Concealed Vertical Rod Exit Device, Narrow Stile Pushpad, 48", Exit Only, Less Trim, Hex Key Dogging, Satin Aluminum Clear Anodized Finish, Non-Handed

3348A and 3548A for hollow metal single and double doors, UL listed for panic exit hardware. Devices are ANSI A156.3 ñ 2008 Grade 1. The 3548A has a smooth mechanism case and the 3348A has grooved case.The concealed vertical rod device is non-handed except when the SS (Signal Switch) option is used. See opposite page for available outside trim and device functions.

3548A for Hollow metal single and double doors, UL listed for panic exit hardware.

3348A/3548A fits door stiles as narrow as 2 1/8" (44 mm). Newly designed device has a one piece center case cover.

• Device lengths: 2' 2' (610 mm) Door size 3' 2'4" to 3' (660mm to 914 mm) door size 4' 2'8" to 4' (813 mm to 1219 mm) door size
• Device centerline from finished floor: 39 13/16" (1006mm) Standard, adjustable from 35 5/8" (905mm) to 49 5/8" (1260mm)
• Center case dimensions: 8 13/16" x 2 13/32" x 1 9/16" (208mm x 62mm x 40mm)
• 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)
• Latch bolt: Deadlocking anti-friction top & bottom bolt 3 /4" (19mm) throw Deadlocking anti-friction top & bottom bolt 1 1 /2" (38mm) throw
• Door undercut: 3 /4" (19mm)
• Top & bottom latch: 4 1/2" x 2 7/8" x 1 1/2" (114mm x 54mm x 38mm)
• Vertical rods: Round 2 piece adjustable rods Top rod adjustable from 6'8" (2027mm) to 8'4" (2533mm) Bottom rod adjustable from 35 5/8" (905mm) to 49 5/8" (1260mm) Extension rod kits available for doors over 8'4" (2533mm)
• Fasteners & sex bolts (SNB): Includes 1 3/4" (44mm) – 2 1/4" (57mm) wood & metal doors #425 SNB furnished standard for end case #325 SNB furnished standard for EO (exit only device)

Resources

• EL for Exit Devices Data Sheet
• Von Duprin Finishes Chart