CS 77 Smoke Proof

CS 77 Smoke Proof

Concept System 77 'Smoke Proof' door

Optimised safety and comfort

Concept System® 77 includes a high-quality flush door system, which meets the elevated requirements regarding thermal insulation, stability and security. 
With regard to security, a smoke proof door variant is specially designed and tested for smoke leakage control, optionally available with panic/emergency door functionality, fire and burglar resistance.

This standard flush door range is available in all inward and outward opening types, realised with a wide range of door locks to meet every kind of locking demand.



Technical information


Min. Visible width frame: inward opening68 mm 
Min. Visible width frame-vent: inward opening150 mm 
Min. Visible width frame: outward opening42 mm 
Min. Visible width frame-vent: outward opening150 mm 
Max. height vent2600 mm 
Max. width vent1300 mm 
Overall system depth frame68 mm 
Overall system depth vent68 mm 
Rebate height25 mm 
Min. Glass thickness4 mm 
Max. Glass thickness52 mm 
Glazing methodDry glazing with EPDM or neutral silicones  
Thermal breakFibreglass Reinforced Polyamide Strips  


Air tightness max. test pressure4 (600 Pa)
Water tightness7A (300 Pa)
Wind load resistanceC2 (800 Pa)
Acoustic performanceRw (C; Ctr) = 42 (-1; -4) dB dB
Burglar resistanceRC2/WK2

Opening elements

  • Inward Opening Single DoorInward Opening Single Door
  • Inward Opening Double ZT DoorInward Opening Double ZT Door
  • Outward Opening Single DoorOutward Opening Single Door
  • Outward Opening Double ZT DoorOutward Opening Double ZT Door
  • Panic Double DoorPanic Double Door
  • Panic Single DoorPanic Single Door