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Dorma RTS85 Size 4 Transom Closer

Dorma RTS85 Size 4 Transom Closer
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These Dorma RTS85 Transom Closers have a fixed strength size 4 and can be used on a single or double action door when fitted in conjunction with the correct side or end load arm.

These closers can be used on doors with a maximum weight of 100kg and a maximum width of 1100mm, are tested to BS EN1154.

Features include hold open, back check, adjustable closing speed and adjustable latch action - See FAQs for more information on how these functions work.

  • Fitting: Concealed - Fitted into the transom above the door.
  • Tested to BS EN1154.
  • Height: 38mm
  • Width: 90mm
  • Length: 323mm
  • Maximum Door Weight: 100kg
  • Maximum Door Width - 1100mm
  • Strength: Fixed Size 4
  • Adjustable Closing Speed: Yes.
  • Adjustable Latch Action: Yes.
  • Delayed Action: No.
  • Backcheck: Yes.
  • Hold open - Yes available with either 90 or 105 degree hold open.
  • Non Handed.

See below ordering options for end or side load arms 

RTS85SA - Side Load - Single Action Accessory Pack.

RTS85EA - End Load - Double Action Accessory Pack.

What is a backcheck?

The backcheck function protects the wall and door from damage caused by excessively vigorous opening.


What is adjustable closing speed?

Adjustable closing speed allows for the adjustment of the speed with which the door is closed.


What is delayed Action?

Delayed action allows the closer to close the door more slowly at the top of its cycle.


What is hold open?

Hold open means the door can be held in the open position.


How do I know what strength door closer I need?

The strength required is selected depending on the doors width and weight.


What is adjustable latch action?

Adjustable latch action allows the speed over the final 7-10 degrees to be adjusted to overcome latches and seals.

All product options

All product options
Product Code Description Stock RRP Discount Price Quantity
RTS85
No hold open
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RTS85HO105
105 degree hold open
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RTS85HO90
90 degree hold open
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