Von Duprin QEL3327AEO-F 4 US28 LBR Grade 1 Narrow SVR Exit Device 628

Von Duprin QEL3327AEO-F 4 US28 LBR Grade 1 Narrow SVR Exit 628 is a top-tier fire-rated surface vertical rod exit device designed for commercial use. Engineered for durability and reliability, this Grade 1 exit device features a sleek narrow stile pushpad and a quiet electric latch retraction system, enhancing safety and convenience in emergency exits. With a length of 48 inches, it is compatible with door sizes ranging from 32 to 48 inches wide and accommodates a door height of 84 inches. The device is ANSI A156.3 - 2008 compliant and UL listed for panic exit hardware, ensuring it meets high safety standards. The non-handed design allows for easy installation on both single and double doors, while the less dogging feature simplifies operation. Constructed from durable aluminum, the finish is a matte silver (628/US28) clear anodized, providing both aesthetic appeal and resistance to wear. The exit device includes anti-friction deadlocking latches with a 5/8-inch throw, ensuring secure closure. Designed for narrow stile applications, it is ideal for environments requiring efficient and safe egress solutions. Choose the Von Duprin QEL3327AEO-F for a dependable, stylish exit device that meets rigorous safety requirements.

Grade 1 Narrow SVR Exit 628

Grade 1 Fire Rated Surface Vertical Rod Exit Device, Narrow Stile Pushpad, 48", Exit Only, Less Trim, Less Dogging, Quiet Electric Latch Retraction, Less Bottom Rod, Satin Aluminum Clear Anodized Finish, Non-Handed

3327A and 3527A for all types of single and double doors, UL listed for panic exit hardware. Devices are ANSI A156.3 - 2008 Grade 1. The 3527A has a smooth mechanism case and the 3327A has grooved case. The surface 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.

Devices are ANSI A156.3 – 2001 Grade 1.

The 3327A has grooved case and the surface 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: 4 1/2" x 2 1/8" x 1 1/2" (114mm x 54mm x 38mm)
• Vertical rods: 1 /2" square tubing, standard rods accommodate 7'(2134mm) door Top rod length is 34 15/16" (887mm) Bottom rod length is 31 1/4" (794mm) Extension rods available 1' (205mm) or 3' (914mm) for doors over 7' One piece top rod available for 8' (2438mm) -10' (3048mm) door
• 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) #325 SNB furnished for top and bottom latches

Resources

• 3327A Series Surface Vertical Rod Exit Device Cut Sheet
• 3327A/3527A Installation Instructions
• 3327A/3527A Surface Vertical Rod Exit Device Service Manual
• EL for Exit Devices Data Sheet
• QEL Data Sheet
• QEL Sell Sheet
• Quiet Electric Latch FAQ
• SS333NL/TP Trim for 33/3527 Device Metal Door Installation Instructions
• 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 33/99 LD Kit Installation Instructions
• Von Duprin Exit Alarm Kit Sell Sheet
• Von Duprin Finishes Chart