SCH8820F Heavy Duty Fire-Rated Mortise Lock Exit Device / Grooved Housing / Grade 1

  • SCH8820F heavy duty fire-rated Mortise lock exit devices with grooved housing are used for UL listed fire labeled single doors up to 4′ x 8′ (1219 mm x 2438 mm) or 8′ x 8′ (2438 mm x 2438 mm) double doors installations.
  • The Exit devices are available in the following finishes:
    US3, US4, US10, US10B, US26, US26D, US32D.

Quiet Solution (Option)

  • A mechanical damper controls the motion and reduces the noise associated with the exit device operation to provide customers with a quieter environment.
  • Specify “Quiet Solution” when ordering.

Fire-Rated Rim Exit Device:

Heat-Resistant Materials; UL Fire Door Hardware Certification; Durable Latching Mechanism; No Dogging Mechanism; Push Bar for Egress.

Why Is Fire-Rated Rim Exit Device Required?

Stairwell Doors; Corridors in Fire Zones; Fire-Rated Barriers, etc.

Grooved Housing

  • Appearance: Textured, industrial look.
  • Durability: More resistant to wear and tear compared with smooth housing.
  • Applications: High-traffic, utilitarian environments.
  • Cost: Slightly lower compared with smooth housing.
  • Maintenance: Hides damage but harder to clean grooves.
Device Lengths Short (36″): 33 5/32″ (842 mm)
Long (48″): 45 1/8″ (1146 mm)
Door Widths 36″ – For 29″ to 36″ (736 mm to 914 mm) door size
48″ – For 33″ to 48″ (838 mm to 1219 mm) door size
Minimum Stile Width 4 1/4″ (107 mm)
Latch Bolt Stainless Steel Two-piece mechanical 3/4″ (19 mm) with anti-friction insert and auxiliary deadlocking latch
Strikes Universal curved lip, non-handed, 818 (panic), 828 (fire), Optional 831
(panic) or 832 (fire) flat ANSI Strike for door pairs with overlapping astragal 7/8″ (22 mm lip)
Dogging Kit Panic device – Hex key dogging (RD) standard
Fire device – No mechanical dogging (ND)
Dogging Options Cylinder Dogging (CD)
Less Dogging (LD)
Mounting Fasteners Panic device – Machine screws furnished standard.
Fire device – Sex nuts and bolts (SNB) supplied standard hardware.
SNB are required to use for wood doors, order SNB separately.
Electric Strikes Compatible with Von Duprin 6000 Series Electric Strikes or Forlder Adam’s 300, 500, 600, 700 Series Strikes
Mounting Height Device centerline from finished floor is 40″ (1016 mm) standard
Projection Pushbar Neutral: 3 1/16″ (78 mm), Pushbar Depressed: 2 19/32″ (66 mm)

Short (36″): 33 5/32″ (842 mm)
Long (48″): 45 1/8″ (1146 mm)

Universal curved lip, non-handed, 818 (panic), 828 (fire), Optional 831 (panic) or 832 (fire) flat ANSI Strike for door pairs with overlapping astragal 7/8″ (22 mm lip)

Parts Material

1. Auxiliary Guarded Latch Stainless steel
2. Latch bolt, 3/4″ (19 mm) throw Stainless steel
3. Chassis Cover Nonferrous alloy or stainless steel
4. Chassis Plated steel
5. Push Bar Extruded aluminum
6. Push Bar End Cap Nonferrous alloy
7. Push Bar Trim Brass, stainless steel, steel
8. Mechanism Housing (or Device Body) Extruded aluminum
9. Dogging Plate (or Device Body) Extruded aluminum
10. End Cap Nonferrous alloy
11. Top Latch, 5/8″ (16 mm) throw Stainless steel
12. Latch Assembly Cover Nonferrous alloy
13. Top Vertical Rod & Rod Guide Strong aluminum tube
14. Bottom Vertical Rod Strong aluminum tube
15. End Cap Bracket Plated steel
16. Bottom Latch, 5/8″ (16 mm) throw Stainless steel

Device Length

The devices are precut for 36″ (914 mm) and 48″ (1219 mm) wide doors (standard shipping size), no additional cutting is necessary.

Short 36″: Device Length is 33 5/32″ (842 mm) for 3′ door use, with short push bar.

Long 48″: Device length is 45 ⅛″ (1146 mm) for 4′ door use, with long push bar.

For narrow doors, trim the “A” portion to fit a door width minus 2″ (51 mm).

Standard vertical rods fit 7′ (2134 mm) panic exit doors or 8′ (2438 mm) fire exit doors. For taller doors, specify the height when ordering to receive a longer top rod.

  • UL/cUL Listed : UL listed as Panic Exit Hardware or 3-hour Fire Exit Hardware
  • ANSI Certified : Devices are ANSI A156.3 – 2020 Grade 1

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