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IMPACT DOORS - SPECIFICATION


Flexible crash doors are the most practical and economical solution to heat loss and noise pollution in the workplace.
With the correct panel and frame selection, flexible crash doors can provide a low maintenance, low cost, answer to reducing the waste of energy that occurs in un-enclosed areas without affecting speed of movement through these openings.

Flexible crash doors are widely used in the following applications:
- Retail units and supermarkets
- Food preparation areas
- Hospitals
- Coldstores and cleanrooms
- Warehouses
- Industrial units and factories
- Postal sorting offices

Flexible doors are favoured in these environments due to their durability, ease of use, minimal maintenance and the concealed spring unit mechanism. A range of finishes to the door framework is available to suit different environments. These include powder coating, electro-zinc plating and standard paint finishes. Doors with stainless steel framework are also available.

QUOTATION REQUIREMENTS


It is important to provide the correct details for quotation and subsequent manufacturing purposes, because the correct specification can extend the life expectancy of your flexible doors. The following details are required:

Structural opening
The exact structural opening width, measured at the top, middle and bottom and the exact opening height at the left, the middle and the right hand side, are required to allow for manufacturing tolerances i.e., if the opening is not square.

Fitting arrangement
Standard fitting arrangements allow fitting to the underside of the lintel and to the floor, please state the composition, i.e. timber, steel or concrete, that the lintel and the floor are made from. Fixing plates can be supplied to enable fitting to the jambs if required, i.e. if there is no lintel or if the floor is uneven, please state the composition of the jambs.

Traffic
Specify what type of traffic is using the opening so that the right specification can be offered, i.e. pedestrians, hand powered trolleys, fork lift trucks, etc. Note: it is recommended that the width of the doors should be a minimum of one and a half times the width of the traffic, if this is not possible then automatic flexible doors are recommended.

Situation
Location of the doors, i.e. internal or external and whether the doors are subject to wind pressures.

Environment
The environemnt that the doors are going into, i.e. warehouse, coldroom, wash down area etc., in order that the correct specification of finish to the door framework can be offered, i.e. powder coated, electro-zinc plated etc.

DOOR FRAMEWORK


The four framework types shown below range from light to heavy duty. The Superflex, Multiflex and Interflex frames house a vertical spring unit mechanism in the top of each door tube. The Powerflex frame houses a unit in the top and bottom of each tube. The mechanism is a double action, adjustable tension, torsioned spring unit concealed in the door frame and is virtually maintenance free. The panels shown in the frames below are suggestions only - for the full range of panel options see the panel section.

Superflex
Manufactured from high quality extruded aluminium section, that has smooth lines and no projections. Used frequently within the food industry this is a lighter duty door than others in the range and has the panel fixings concealed within the framework. Suitable for use on internal openings with pedestrian, hand or light powered traffic on openings up to 2400mm wide x 2438mm high.
Multiflex
Manufactured from 43mm o/d heavy wall mild steel steam tube, with a horizontal gusset plate and vertical mild steel flats to hold the panel in position. Suitable for use in many applications, dependent on panel choice. They are ideal for internal openings but can used on semi-external/external opeings dependent on site conditions. They allow access by pedestrian, hand or powered traffic on openings up to 2400mm wide x 2600mm high.
Interflex
Manufactured from 60mm o/d heavy wall mild steel steam tube, with a horizontal gusset plate and vertical mild steel flats to hold the panel in position. Suitable for semi-external/external openings dependent on site conditions, for use by pedestrian and powered traffic. Offering a heavier duty construction than the Multiflex and Superflex these doors are suitable for use on openings up to 3000mm wide x 3350mm high. N.B. On openings above 2600mm wide the triangular gusset plates will be replaced by horizontal top tubes.
Powerflex
manufactured from 60mm o/d heavey wall mild steel steam tube with a horizontal top tube, vertical mild steel flats and a corner gusset plate to hold the panels in position. Suitable for heavy duty external applications, with powered traffic. Powerflex doors are suitable on openings up to 4000mm wide x 4000mm high and many extras are available to increase the specification on the door framework and panels. I.e. Horizontal spring unit mechanisms, dome disc protection studs, wearpads, increased overlap, larger clamping flats etc. N.B. On doors below 2600mm wide the horizontal top tubes will be replaced by triangular horizontal gusset plates.

IMPACT DOORS SPECIFICATION


Choosing the correct door panel type can extend the lifespan of your flexible crash doors. The panels shown below are available in new doors and can also be supplied as replacements for existing crash doors.

Panel type 1:
All clear PVC 7mm or 10mm thick, suitable for light traffic. The most economical option available and allows maximum visibility.
Panel type 2:
Seeflex 7mm or 10mm thick PVC with a coloured lower section welded to a clear upper section. Also available in sandwich style, i.e. coloured upper and lower sections with a clear centre section. Recommended for manual traffic.
Panel type 3:
Composite clearflex. A black rubber lower section and a clear PVC upper section with the joint between the materials being effected by a ribbed rubber buffer strip. Combinations available:- 7mm PVC/8mm rubber or 10mm PVC/12mm rubber.
Panel type 4:
Black rubber or coloured PVC with a rectangular aluminium framed perspex vision panel. Rubber available in 8mm or 12mm. PVC available in 7mm or 10mm. Vision panels 460mm x 150mm or 610mm x 230mm. Triangular vision panels are also available.
Panel type 5:
Black rubber or coloured PVC with a 281mm diameter aluminium framed perspex vision panel. Rubber available in 8mm or 12mm. PVC available in 7mm or 10mm.
Panel type 6:
Sandwich clearflex. Black rubber upper and lower sections with a clear PVC centre section. Joints between materials being effected with ribbed rubber buffer strips. Ideal for forklift traffic and higher doorways. Combinations available:- 7mm PVC and 8mm rubber or 10mm PVC and 12mm rubber.
PVC colours available: black, grey, white, blue, red.
(Please note maximum size available on grey/white/blue/red panels is 1200mm wide per panel).

Panel suitability type

Panel Type Frame Type Superflex Multiflex Interflex Powerflex
7mm PVC (All clear/seeflex/col with vision) Yes Yes N/R N/R
10mm PVC (All clear/seeflex/col with vision) No Yes Yes Yes
8mm Rubber No Yes N/R N/R
12mm Rubber No Yes Yes Yes
7mm & 8mm Clearflex or Sandwich Clearflex No Yes N/R N/R
10mm & 12mm Clearflex or Sandwich Clearflex No Yes Yes Yes
N/R = Not recommended


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