SUNFLEX SF55 thermally broken aluminium

Profile
The profile is constructed from a strong aluminium extrusion, which has been thermally broken by a 24mm polyamide insulation bar, guaranteeing it optimum resistance to combat heat loss and condensation. The minimal framework is offered as a (WE) square edge profile.

All framework is assembled with patented moulded corner blocks and the panels are machine mitred at the corners rather than the cheaper butt jointed alternatives. Each panel is connected to the next panel/outer frame by a minimum of 3 slim line hinges, ensuring an even, continuous seal around the perimeter of each door panel.

Track options

There are two choices of track; a standard stepped weathered track for a severe weather rated system or for added convenience and improved safety a thermally broken aluminium flush track recessed into the floor. This provides a level walkthrough with an uninterrupted floor finish, compliant to Doc. M of the Building Regulations for disabled access

Security – Shoot bolts

A high level of security is provided as standard, with an effortless, quick, smooth and easy operation. It consists of a two-point top and bottom shoot bolt mechanism, with additional central locking point to end Lead door. The locking system is incorporated within the framework within each intermediate panel, operated by an internal flush handle. The shoot bolt rods are manufactured in aluminium and linked by a corrosion resistant cam. In addition, they are capped with polyamide cones that prevent any metal damage to the tracks when locking, whilst compressing the panels tight against the top and bottom seals.

Five-lever key-locking cylinder incorporated within the profile

A five-lever Euro profile cylinder key lock and handles are fitted to the end lead door or single pass door where there are an odd number of panels, or to the first opening pair, in an even number of panels. These can be fitted to either the inside only or both internally and externally as required, meeting the requirements of the Association of British Insurers. By integrating the locking cylinder into the existing profile in this way eliminates the need for an additional add-on profile familiar with other sub standard systems, ensuring all sightlines remain symmetrically the same.

Added security options

Additional key locks can be added at every intermediate handle point for higher security. Mortice locks can be fitted where a latching position is required for added convenience. Panic locks can be fitted for fire escapes, electric latch-release locks and rollerball latch locks are also available for commercial use.

Internally glazed and locking hinge pins

For improved security all Sunflex folding doors systems are internally glazed as standard, with external centre secured locking hinge pins.

Weather seals – The weather track for severe conditions

A severe weather rated system is achieved with the weathered track option, providing a perimeter double-rebated seal. (The system achieves DIN 18055, Category C performance for wind loading and water leakage.)

The flush track

The bottom seal between the door and the flush track is via double, twin nylon brush piles separated by a twin fin seal, giving an effective seal. It is recommended that some form of a sunken drainage channel and a slope away from the doors be integrated, to avoid any pooling of water.

Minimal finger cushion gaskets

The double gasket seals between the door panels are continuous even behind the hinges and of superior quality (consisting of long lasting EPDM). The unique design of these self sealing gaskets, combined with centre bubble gaskets, provide a minimal gasket sightline while providing a cushion to minimise the effect if fingers were to be trapped.

Operating system

Designed predominately to be bottom running, the stainless steel running mechanisms consists of four wheels, manufactured from tough glass fibre reinforced polyamide, set around a maintenance-free sealed ball-bearing, giving a quiet, smooth operation with optimum resistance to extreme weather and temperatures fluctuations. Each wheel and guide mechanism can carry up to 200 kilograms.

The advanced pioneered technology in this system is designed to be completely fitter friendly and upon installation enables the height of the system to be easily adjusted with the simply use of an Allen key.

Self-lubricating collar type bearings provide quiet operation without squeaking hinges.

Furniture

Handles and hinges are made of cast alloy, handles are sprung-loaded and flush-fitted to enable door panels to stack flat when fully opened. Optional lever handles are available upon request for single access door or lead doors. Alternatively there are a wide variety of aftermarket chrome and brass handles.

Large D’ handles and automatic door closures can be fitted, for commercial instances. Trickle vents of either 2500mm² or 5000mm² can also be incorporated with the addition of a 40mm add-on head profile which can be colour-coded to suit.

Panel catch

In the situation of a single access or pass door in an odd number configuration, the panel is fitted with a heavy duty adjustable panel catch which prevents the door from swinging back round in high winds and also counter weights the door with the adjacent panel for effortless operation.

Pull handles

When the folding door system opens externally the intermediate panels are fitted with a moulded ‘D’ shaped handle, this is attached to the internal hinge between two even panels and sits neatly within the gasket line enabling easy closure of the panels against the compression top and bottom gasket seal.

Design options

The door system design can be customised according to your preference - options include mid-rails, mullions, plant-on bars with dummy spacer grids, deeper top and bottom profiles and solid-in fill panels, among many others.