Franzen - ceiling flaps

Double-leaf multi purpose ceiling flap DKN-2

Franzen Deckenklappe DKN-2
Double-leaf multi purpose ceiling flap
Installation in internal ceilings (optional)	according to DIN ENV 14351-2 marked
Installation in external ceilings (optional)	according to DIN EN 14351-1 marked
Thermal transmittance (optional)	U_D-value ≥ 1.2 W/(m²K) according to EN ISO 10077-1
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 R_W (C;C_tr) = 45 (-0;-3) dB measurement report 820SST298/8000675260-1-13, TÜV Nord, TÜV Nord (de) expert opinion 820SST298-Hrd - TÜV Nord (de)
Air tightness (optional)	up to class 3 according to EN 12207 (up to 600 Pa) expert opinion no. 40-40/12.120, PIV Velbert
Resistance to wind load (optional)	up to class C4 (up to 2,000 Pa) according to EN 12210 expert opinion no. 40-40/12.120, PIV Velbert
Resistance to positive and negative pressure (optional)	up to 3.800 Pa according to DIN EN 12211 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)

Technische Beschreibung

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

Flap leaf

leaf thickness 69 mm - smooth double-walled
plate thickness 1.0 mm to 1,5 mm

Frame

frame-system "ZNG" with flush clipped in profile strips
or
frame-system "ZG"
frame four-sided surrounding
(see installation variants)

corner frame
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

Lock options

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

Marking

external ceiling flaps marked according to EN 14351-1

Optional

lock control
powder coating in RAL colors
special solutions according to request and customer requirements

The information given refers to the usual configurations. 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 DKN-2double-leaf ceiling flap

DKN-2 Downloads

Brochure (pdf)
Report
Technical drawing
- pdf
- dxf