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Concealed Vertical Rod Exit Device (Narrow Stile)

8550S/8750S : Panic-Rated CVR Exit Device (Narrow Stile) 

8550F/8750F : Fire-Rated CVR Exit Device (Narrow Stile)   



  • Narrow stile design Panic CVR exit devices are used for the aluminum frame full glass doors or narrow stile aluminum doors applications.
  • Narrow stile design Fire CVR exit devices are used for the aesthetics requirements of wide stile  pairs of steel doors up  to 8' x 8'(2438mm x 2438mm).



  • 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.
Device Lengths   Short (36"): 33-5/32" (842mm), Long (48"): 45-1/8" (1146mm)
Door Widths   36" - For 29" to 36" (736mm to 914mm) door size
  48" - For 33" to 48" (838mm to 1219mm) door size
Minimum Stile Width   2-19/32" (66mm)
Latch Bolt   Top latch - 5/8" (16mm) throw, can be deadlocked automatically          Bottom latch - 5/8" (16mm) throw, held retracted druing door swing
Strikes   Top - 813 (panic), 823 (fire).    Bottom - 815(panic), 825(fire)
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
                        - Optional SNB are available for device
  Fire device - Sex nuts and bolts (SNB) supplied standard
Mounting Height   Device centerline from finished floor is 40" (1016mm) standard
Door Opening Height Standard door height is 7', 8' is available

Vertical Rods 


1/2" (13mm) diameter tubular

Top rod has two pieces to connect for accommodating 7' or 8' door

Bottom rod is one piece, its length is 31-1/4" (794mm)

Projection   Pushbar Neutral: 3-1/16" (78mm)
  Pushbar Depressed: 2-19/32" (66mm)

  • UL/cUL Listed : UL listed as Panic Exit Hardware or 3-hour Fire Exit Hardware
  • Comply with ANSI A156.3 - 2014 Grade 1