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Visofold & Duraflex BiFold Door

The thermally broken folding door system is designed to allow for maximum thoroughfare through an opening.

The system is built up using a frame in which moveable parts or elements are placed In such a way that it is possible to fold up the elements to the left or right. These elements or sashes are supported and hinged to a mullion. At the bottom the mullion is supported by a roller mechanism which slides along the cill profile while at the top, the mullion is guided by another roller mechanism. There are many possible combinations of elements and opening sashes. Applications for this series of folding doors are often used in hotels and restaurants, stores and in private houses, in order to open a complete wall to create a larger space in the summer. The system is also interesting for conservatories to use as a screen you can open completely in summer times.



Specifications

 

Features
  • Polyamide Thermal Break for superior insulation
  • Security locking on main doors and intermediate stiles
  • Maximum sash weight up to 85 kgs
  • High performance weathering
  • Internally beaded
  • Virtually maintenance free

Materials
Aluminium: AIMgSi 0.5 Type 6060/6063 T5 in condition F22 (according to NBN P21-001 and DIN 7863, TV 110, NFP 85301, ISO 3994. Tested and approved according to an artificial ageing test of “Plexi glass” combined with vulcanised rubber. Co-extruded profiles: according to DIN 7863, TV 110, BFP 85301, ISO 3994, tested and approved according to an artificial ageing test of “Plexi glass” combined with vulcanised rubber.

Thermal Break
The profiles consist of 2 aluminium extrusions which are separated from one another by polyamide strips PA 6.6.25 reinforced with glass fibre. A gluing thread, rolled and pushed in together with the thermal break profile ensures a strong adhesion after melting and flowing, when the profiles are heated in the hardening furnace.


Performance Levels
Air transmission: PA2
Mechanical resistance to wind: PV2
Watertightness PE2
According to STS 52.0

Details
Built-in depth: outer frame 78mm,
sash 70mm
Sealings: with extruded E.P.D.M.
rubbers and PPbrushesGlazing: from 6 to 38mm

 

Options
  • Opening inside or outside of building
  • Accommodates glazing from 6mm to 38mm units and panels
  • Choice between standard cill or low cill profile allowing levelling of frame with floor

Finshing
Electrostatic Powder coating: according to the guidelines of A.P.A.- Qualicoat in most of the
current RAL- colours. The composed profiles (with thermal break) cam be coated with different inner and outer colours (Dual Colour). Anodisation in satin or bronze colours with EWAA/EURAS- Qualinod quality label. Also available in woodstructure finish to imitate different woodstructures (Powder coated according to Qualicoat standards)