FFT Flex Green


Thermally broken, double glazed automatic door system. Tested system with U-value between 1.7–2.4 W/m²K. Enhanced wind load resistance (depending on door size, up to Beaufort Force 8).


  • Microprocessor controlled, modular designed.
  • Adjustable opening and closing speed.
  • Variable hold open times.
  • Enhanced wind load control.
  • Excellent thermal separation.
  • Safeguarded functionality with self-monitoring sensors.
  • Suitable for emergency exits and escape routes.
  • Five position mode switch (off, automatic, partial opening, exit only and hold open).
  • Self-regulating safety system monitoring all door movements, including closing force.
  • Presence sensors monitoring the threshold area preventing the doors from closing on users.
  • Night/ bank facility for first and last entrance.
  • Drive unit encased in extruded aluminium profile (155 mm height).

General information


Insert requirements from 'Options' below.


Microprocessor controlled, modular designed

Adjustable opening and closing speed

Variable hold open times

Enhanced wind load control

Excellent thermal separation

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Uniclass 2015

Pr_30_59_24_81 Sliding folding doorsetsPrimary


L20/490 Automatic doors

Product range

Automatics / Folding and Space-saving

Specification data - Sliding folding doorsets

Product Reference

FFT Flex Green Standard

FFT Flex Green - DualDrive (Emergency escape)


Single panel

Double panel


Insert requirements from 'Options' below.

Door leaves and operator cover finish

Aluminium profile coating

Polyester powder coating

Silver anodized

Stainless steel


28 mm ISO DGU UG 1.0

28 mm ISO DGU UG 3.0


Jamb switch


Via access control

Wall switch

Safety devices

DORMA IRS 4 Safe monitored safety sensors

Emergency break glass

Framed glazed safety barrier

Locking facility

Electromechanical lock

Emergency break glass

Manual floor lock

Manual hook lock

Real time remote monitoring system

Not required


Standard product features

Clear passage height:

2100–2500 mm.

Technical characteristics:

  • Opening speed (incremental adjustment): 100–750 mm/s.
  • Closing speed (incremental adjustment) 100–500 mm/s.
  • Hold-open time: 0–180 s.
  • Installed load, frequency: 230 V, 50/60 Hz.
  • Power consumption: 250 W.
  • Type of protection: IP 20.
  • Temperature range: -20–60°C.
  • Permissible humidity (relative), maximum: 93% (non-condensing).

Power failure/ fire alarm:

Monitored battery back-up system to automatically open the doors in the case of a power failure or upon a signal from the interfaced fire alarm system.

Product Options


  • Single folder: length 800–1200 mm, height up to 2500 mm.
  • Synchronous bi-folder: length 1900–2400 mm, height up to 2500 mm.


  • DORMA Prosecure Opti-Combi combined radar activation and threshold infrared safety sensor.
  • Hard wired or wireless wall switch actuation satin stainless steel, 150 x 150 mm.
  • Slimline jamb switch, satin stainless steel, 115 x 45 mm.
  • Link to access control (by others). DORMA require a normally open volt free contact momentarily closed on receipt of a valid signal from the access control system.

Safety devices:

  • Self-regulating safety system monitoring all door movements including closing force, as standard.
  • Presence sensors monitoring the threshold area preventing the doors from closing on users, as standard.
  • DORMA IRS 4 Safe monitored safety sensors to secondary closing edge of door leaf.
  • Framed glazed safety barrier with toughened glass infills installed along the line of doors in the open position.
  • Emergency break glass.

Door leaves and operator cover:

  • Thermally broken aluminium frames/ profiles.
  • Glazing: 28 mm ISO DGU UG 1.0 or 28 mm ISO DGU UG 3.0.
  • Aluminium profile coating.
  • Polyester powder coating.
  • Silver anodized.
  • Stainless steel.

Real time remote monitoring system:

Dorvision GPRS based wireless system concealed within the operator; system can monitor each door location remotely via the internet incorporating facility to lock/ unlock doors, timed automatic locking, reset, diagnostic system check and to provide data capture on usage and performance.

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