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

Von Duprin 9857EO-F 3 US28 Grade 1 3Pt Exit Device 628 offers a robust, reliable solution for emergency exits in commercial settings. This Grade 1, three-point latching exit device is designed specifically for both single and double doors, ensuring safety and compliance with UL-listed panic exit hardware standards. With a fire-rated capability and a satin aluminum clear anodized finish, it seamlessly fits into various architectural styles while providing exceptional durability. Measuring 36 inches and suitable for doors with heights up to 84 inches, the 9857EO-F is field-reversible for flexible installation options. The device accommodates stock hollow metal doors featuring 86 or 161 cutouts, with vertical rod and latch guards available to protect against damage from high-traffic scenarios. Key features include a deadlocking anti-friction latch bolt with a 5/8-inch throw and a 3/4-inch deadlocking rim bolt, ensuring secure closure and reliable operation. The device is compatible with door widths ranging from 28 to 36 inches and thicknesses between 1-3/4 to 2-1/4 inches. With a limited 3-year warranty, the Von Duprin 9857EO-F is an excellent choice for those seeking dependable exit solutions that prioritize safety and ease of use.

Grade 1 3Pt Exit Device 628

Grade 1 Three-Point Exit Bar, 36" 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