Von Duprin 9857EO-F 4 US28 Grade 1 3-Point Exit Device 628

Von Duprin 9857EO-F 4 US28 Grade 1 3Pt Exit Device 628 is a high-performance three-point exit device designed for both single and double doors. This Grade 1, 48" fire-rated model is ideal for commercial environments, meeting ANSI A156.3 – 2008 standards and UL listing for panic exit hardware. The satin aluminum clear anodized finish provides a sleek, modern look while ensuring durability. Field reversible for ease of installation, the 9857EO-F features a smooth mechanism case that is compatible with standard hollow metal doors with 86 or 161 cutouts. With a deadlocking anti-friction top and bottom bolt, this exit device enhances security and reliability during emergency egress. The device accommodates doors ranging from 34" to 48" in width and 84" in height, making it versatile for various applications. This model includes a comprehensive screw pack for installation on 1-3/4" to 2-1/4" thick doors and offers optional vertical rod and latch guards to protect against damage from gurneys or carts. Designed with a pushbar projection of 3 13/16" when neutral and 3 1/16" when depressed, the Von Duprin 9857EO-F ensures efficient and safe exit in any commercial setting.

Grade 1 3Pt Exit Device 628

Grade 1 Three-Point Exit Bar, 48" Fire-rated Device, 84" Door Height, Exit Only, Less Dogging, Satin Aluminum Clear Anodized Finish, Field Reversible

9857/9957 Three-point latching device for all types of single or double doors, UL listed for panic exit hardware. Covers stock hollow metal doors with 86 or 161 cutouts. Vertical rod and latch guards are available to protect the bottom rod of the exit device from damage by impacts of carts or gurneys passing through doors.

The 9857 device has a smooth mechanism case.

Three-point latching device for all types of single or double doors, UL listed for panic exit hardware. Devices are ANSI A156.3 – 2008 Grade 1. Covers stock hollow metal doors with 86 or 161 cutouts.

• 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: 3913/16" (1011 mm) 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)
• Latch bolt: Deadlocking anti-friction top & bottom bolt, 5 /8" (16mm) throw Deadlocking rim bolt, 3 /4" (19mm) throw
• Door undercut: 1 /4" (7mm) recommended
• Top & bottom Latch case: 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) doors. Top rod length: 34 15/16" (887mm); Bottom rod length: 31 1/2" (794mm) Extension rods available in 1' (205mm) or 3' (914mm) for doors over 7'. One piece top rod is available for 8' (2438mm) and 10' (3048mm) doors.
• Fasteners & sex bolts (SNB): Includes screw pack for 1 3/4" (44mm) to 2 1/4" (57mm) thick metal or wood doors, and 325 SNB for top and bottom latch. Optional 425 SNB available

Resources

• 9857 3-Point Locking Exit Device Cut Sheet
• QEL 98/99 Baseplate Conversion Series Installation Instructions
• QEL Conversion Kit for 98/99 Series Installation Instructions
• 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 Exit Alarm Kit Sell Sheet
• Von Duprin Finishes Chart
• Von Duprin LD Cover Plate for 33/35 & 98/99 Exit Devices Installation Instruction
• Von Duprin Pneumatic Exit Device Installation Instructions