Von Duprin 3347AEO 4 US28 Grade 1 Narrow CVR Exit Device 628

Von Duprin 3347AEO 4 US28 Grade 1 Narrow CVR Exit 628 is a top-tier concealed vertical rod exit device designed for both single and double doors. This Grade 1 device features a narrow stile pushpad and is classified as exit only, making it an ideal choice for high-traffic areas where quick egress is essential. With dimensions accommodating door stiles as narrow as 1 3/4 inches and a satin aluminum clear anodized finish, it seamlessly blends functionality with aesthetics. The 3347AEO includes hex key dogging as standard, and its one-piece center case cover enhances durability and ease of installation. The adjustable round vertical rods allow for precise fitting, with the top rod adjustable from 6'8" to 8'4" and the bottom rod ranging from 35 5/8" to 49 5/8". This model is UL listed for panic exit hardware, ensuring compliance with safety standards. With a projection of 3 13/16 inches when neutral and 3 1/16 inches when depressed, the pushbar design is user-friendly. Designed for commercial applications, the 3347AEO combines reliability, ease of use, and exceptional performance, making it a robust solution for any building professional or knowledgeable homeowner.

Grade 1 Narrow CVR Exit 628

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

3347A and 3547A for all types of single and double doors, UL listed for Panic Exit Hardware. Devices are ANSI A156.3 - 2001 Grade 1. The 3547A has a smooth mechanism case and the 3347A has grooved case. The concealed vertical rod device is non-handed except when the SS (Signal Switch) option is used. 3347A/3547A fits door stiles as narrow as 1 3/4"(44 mm), wood door stiles as narrow as 4"(102mm). Newly designed device has a one piece center case cover. Device Lengths: 3' 2'4" to 3', 4' 2'10" to 4'. Hex key dogging standard. Vertical Rods: Round 2 piece adjustable rods; Top rod adjustable from 6'8" to 8'4".

3347A fits door stiles as narrow as 2-1/8" (44 mm), wood door stiles as narrow as 4" (102mm).

3347A is for all types of single and double doors, UL listed for panic exit hardware. Devices are ANSI A156.3 – 2001 Grade 1 and the 3347A has a grooved case. The concealed vertical rod device is non-handed except when the SS (signal switch) option is used.

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)

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 5 /8" (16mm) throw

Door undercut: 1 /4" (7mm)

Top & bottom latch: 3 3/4" x 1 1/2" x 1" (89mm x 38mm x 25mm)

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

• 3347A Series Concealed Vertical Rod Exit Device Cut Sheet
• 372L-DT Control for 33/3547/47-F Metal Door Installation Instructions
• EL for Exit Devices Data Sheet
• QEL Data Sheet
• QEL Sell Sheet
• Quiet Electric Latch FAQ
• Von Duprin 33/35 and 98/99 ALK Alarm Kit Installation Instructions
• Von Duprin 33/35 and 98/99 End Cap Retrofit Kit Installation Instructions
• Von Duprin 33/3547A Service Manual
• Von Duprin 33/3547A/48A Bottom Rod Assembly Instructions
• Von Duprin 33/3547A/48A Top Rod Assembly Instructions
• Von Duprin 33/99 LD Kit Installation Instructions
• Von Duprin 3347A/3547A Installation Instructions
• Von Duprin Exit Alarm Kit Sell Sheet
• Von Duprin Finishes Chart