Dura Spiraflex
The sewn HVAC & ventilation hose is particularly suitable for heavy duty fume and air pushing/extraction purposes. The wide range of materials, including insulated versions, make this product suitable for building, tent, machinery, mining and industrial ventilation purposes. The correct choice of materials and construction type make this product suitable for permanent and mobile installations.
DuraSpiraflex ducting, is typically assembled using a combination of single, two or three-ply fabrics, sewn onto a metal spiral, which is then covered with an abrasion resistant scuff strip, creating a highly durable and flexible duct.
DuraSpiraflex ducts are constructed using hot galvanised or spring steel wire, which is pitched to suit the desired task, where negative air pressure (usually air suction) requires a much tighter spiral arrangement when compared to pushing ducts. Insulated products can further increase the efficiency of hot & cold air transportation. It is the accurate selection of all base materials, in combination with specialist assembly techniques, that make these products outperform conventional alternatives, in terms of quality and longevity.
DuraSpiraflex ducts are available in diameters of up to 2 meters and lengths of 40 meters. Layflat ducts are used in combination with structured products and baloon into shape when filled with air (pushing hot or cold air).
Typical materials used for both the inside and outside layers include:
Silicone Coated Glass
Fire Retardant Polyester Cordura
Neoprene Polyester
The product is also available in various colours, such as yellow, black or grey or white.
Optional insulation layers include:
Polyester Wool
Polyurethane Foam (PU)
Thread options include:
Kevlar Thread
Ceramic Thread
Polyester Thread
Optional scuff strip materials include:
Polypropelene Belt, in a wide range of colours, including white, grey, green, or orange
Standard options include:
Hanging loops
Metal Rings
Velcro
Zippers
Built in protective covers
Y&T shaped connectors
Custom fabrics
Custom colours
The DuraSpiraflex product range includes the following, base models. Please refer to the individual data sheets for more detailed information.
DuraSpiraflex PLS FR
The PLS FR is a fire retardant PVC Polyester Condura duct, sewn onto a hot galvanised steel wire, finished with a polypropylene belt.
DuraSpiraflex PLX FR
The PLX FR is a fire retardant Europrene Polyester duct, sewn onto a hot galvanised steel wire, finished with a polypropylene belt.
DuraSpiraflex PLX i
The PLX i duct is a light europrene polyester duct equipped with an inner layer of polyester wool for added noise and temperature insulation. The whole fabric is then sewn onto a galvanised steel spiral.
DuraSpiraflex PP80 FR
The DuraSpiraflex PP80 duct is a PVC polyester antistatic duct. The whole fabric is sewn onto a galvanised steel spiral.
DuraSpiraflex Product Customisations – Applicable to all models.
Hanging Loops
The loops can be used to hang the entire duct on a rope or hook. This is particularly important with Layflat ducts.
Long & Short Cuffs
The standard cuffs can be made longer, shorter and equipped with velcro or zipper as may be required.
Metal D-Rings
Metal D-Rings offer a heavy duty option for permanent installations or the use of quick release carabiners.
Simple End-Belts
Simple end-belts are the best option for universal connectivity. A small metal clip will help secure the belt firmly. On larger diameters, the belt can be equipped with a belt ratchet.
Ventilation Holes
Ventilation holes can be used to distribute hot or cold air as opposed to only transporting it from one end to another.
Zipper Connections
These can be used to connect the duct to another duct, or a transition piece or velcro adapter. It can also be used to simply block the duct if equipped with ventilation holes.