Franzen - multi purpose ceiling flaps

Multi purpose ceiling flap Franzen DKN-2System Schröders

double-leaf multi purpose ceiling flap

CE-marking marked with declaration of performance

Installation in internal ceilings
(optional)

according to DIN ENV 14351-2

Installation in external ceilings
(optional)

according to DIN EN 14351-1


combinable with additional performance characteristics
Burglar resistance
(optional)

RC4 - classification report no. 22-5/15.119, PIV-Velbert
RC3 - classification report no. 22-4/15.117, PIV-Velbert

according to DIN EN 1627 ff

Acoustic performance
(optional) 		according to EN ISO 10140-1 / EN ISO 10140-2 / EN ISO 717
up to RW (C;Ctr) = 45 (-0;-3) dB
measurement report 820SST298/8000675260-1-13, TÜV Nord, TÜV Nord (de)
expert opinion 820SST298-Hrd - TÜV Nord (de)
Thermal transmittance
(optional)

UD-value ≥ 1.2 W/(m²K) according to EN ISO 10077-1

Air tightness
(optional)

up to class 3 according to EN 12207 (± 600 Pa)

expert opinion no. 40-40/12.120, PIV Velbert
Resistance to wind load
(optional)

up to class C4 according to EN 12210 (± 1,600 Pa)
expert opinion no. 40-40/12.120, PIV Velbert

Resistance to positive and negative pressure
(optional)

according to DIN EN 12211 (up to 3,800 Pa)
expert opinion no. 40-52/16.120

Ability to release
(optional) 		according to EN 179
Explosion protection
(optional) 		For installation in potentially explosive areas, please see confirmation letter Explosion protection ATEX for Franzen hinged doors (in German language) System Schröders (PDF) Logo ATEX

Technical data
Dimensions
(rough building dimension)
for performance characteristic airtightness, resistance to wind load, watertightness or resistance to positive and negative pressure limited to
width up to 2,500 mm
height up to 2,500 mm

deviating special sizes possible with corresponding individual proof
Flap leaf

leaf thickness 67 mm - smooth double-walled
plate thickness 1.0 mm

  • thin rebate design

    • insulating insert
      • optional full-face glued and pressed with cover plate,
        thus particularly smooth and even door leaf
Frame

corner frame

frame-system "ZNG"
frame four-sided surrounding

  • optional enclosing frame
  • optional block frame

with elastic rubber seal
(seal type depending on performance characteristic)

Hinges

concealed door hinges
thus smooth surface without tripping edge

Fittings

top side: embedded folding ring shell
lower side: handle

Locking
Active leaf

single locking according DIN 18250

  • optional profile cylinder prepared (cylinder on-site)
Fixed leaf

various locking systems possible

Walkability
(optional)
  • with grating cover made of steel or aluminium
  • with checker plate 3 mm made of steel or aluminium
  • further designs for upper covering on request
Opening assist

gas spring
- adjusted to the flap weight
- easy opening

Installation
  • in concrete ceilings
  • in special ceilings on request
  • optional blunt installation in soffit
  • optional installation on the wall plate
Optional
  • lock control
  • powder coating in RAL colors
  • special solutions according to request and customer requirements

The information given refer to usual configurations. Subject to change without notice. No liability for incorrect information.

Individual configurations may be required when combining different performance characteristics.

Our team will be happy to assist you with the individual planning of your requirements.

Franzen-door-chart Franzen-door-chart