This is a DORMA concealed door blind dummy "closer."
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The RTS85 transom unit is a concealed door blind dummy "closer". It is ideally used on doors that have been converted to have automatic operation and it is an ideal solution for ensuring that aesthetics are not compromised. The blind dummy closer has absolutely no opening or closing resistance which is why it doesn't impede the function of an automatic operator. It should not be mistaken for the RTS85 Non-Hold Open Model.
The ARRONE AR8187 is a high performance, low friction ball-bearing hinge. It is Grade 13, fire-rated and suitable for a maximum adjusted door weight of up to 120kg. This hinge measures 102mm x 76mm and has a satin stainless steel finish.
A 75mm diameter Satin Stainless Steel Fire Door Keep Shut Sign.
The DORMA RTS 85 transom concealed door closer for single or double action doors with 90 degree hold open function.
The DORMA RTS 85 transom concealed door closer for single or double action doors; non-hold open version.
The DORMA RTS 85 transom concealed door closer for single or double action doors with 105 degree hold open function.