DORMA RTS 87 No Hold Open

The Dorma RTS87 Transom Closer for metal frames is a power adjustable unit size EN1 to EN4 that allows fine on site tuning of the closing force to ensure full and correct closure of the door whilst ensuring opening forces are kept to a minimum allowing compliance with Approved Document M and BS8300. With positive Centering through its Cam Mechanism fine adjustment of the neutral position can also be made with the drive arm fitted within the door leaf ensuring correct door alignment and performance.

Application: Metal frames
Type: No hold open, double action and single action doors.
Spring strength: EN 1-4 (Adjustable).
Maximum Door width: 1100mm.
Minimum door width where unit will exert 30N opening force when adjusted to EN3 (min. for fire doors) 800mm. CERTIFIRE Approved CF127
Independent Valve Adjustable Closing Speed 175° - 15°
Independent Valve Adjustable Latching Speed 15° - 0°

CE marked. Successful independently tested to BS EN 1154.