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Dorma RTS88

Overhead Concealed Door Closer Body


Price: $208.00 /each

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Dorma RTS88 overhead concealed door closer body. Designed to fit into headers as small as 1-3/4" x 4" for aluminum frames and is also adaptable to wood and hollow metal frames. For single or double acting interior and exterior doors.

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Price: $208.00

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Choose Spring Size:

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  • Size 3 - ANSI size 6
    • Exterior Doors 3'6"- 4'0"
    • Interior Doors 4'0"– 4'6"
  • Size 4
    • Exterior Doors over 3’0”- 3’6”
    • Interior Doors over 3’6”- 4’0”

Maximum door widths and recommended sizes shown are for average conditions. If there are unusual site conditions, e.g. high or exceptionally heavy doors or wind pressure, the next stronger spring size should be selected.


Choose Hold Open:

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Hold open - a mechanism within a closer which allows a door to remain in an open position.

Hold open closers are not permitted for use on fire rated doors.


Choose Extended Spindle:


  • Designed to fit into headers as small as 1-3/4" x 4" for aluminum frames and is also adaptable to wood and hollow metal frames.
  • RTS88 will have maximum door opening to 90° or 105°.
  • Available with hold open at 90° or 105°, or without hold open.
  • Maximum door weight of 250 lb.interior or 200 lb exterior.
  • Maximum exterior door width up to a 3' 6" and interior door up to a maximum 4' width.
  • For both single-acting or double-acting doors.

Available Options: Choose Options Above

  • Spring Size: info icon

    • Size 3
    • Size 4
  • Hold Open: info icon

    • Hold Open - 90 degrees (HO90)
    • No Hold Open - 90 degrees (NHO)
    • Hold Open - 105 degrees (HO105)
    • No Hold Open - 105 degrees (NHO)
  • Extended Spindle:

    • 3/16" (5mm) Integral Extended Spindle
    • 1-5/16" Add On Length Extended Spindle (8521E)
    • No Extended Spindle
  • Closer body is non-handed.
  • Mechanical backcheck.
  • Always use an auxiliary stop in conjunction with RTS88 installations.
  • Pressure relief valve protects the closer from abuse due to forced closing.
  • An integral positive stop limits door swing at 90° or 105° to help protect the door and frame.
  • An auxiliary stop should always be installed in conjunction with RTS88.
  • Closing speeds are controlled by two adjustment valves.
    Sweep area is from 105º to 20º. Latch area is from 20º to 0º.
  • Mounting brackets are included to install closer into aluminum or wood headers.



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