Textile And Coating
Textile and coating make up a unique fabric and the suspension system makes the duct even stronger.
Textiles
The textiles, which have been developed specially for ventilation ducts, have radial reinforcement to prevent tearing. If a hole should nevertheless occur, the textiles are knitted precisely in order to limit the length of the tear. Protan Ventiflex textiles are also designed to be dimensionally stable so as to prevent expansion under high pressure.
PVC Coating
PVC coating on the outside has been developed to withstand damage and mechanical wear, and is thick enough to protect the textile. Internally Ventiflex is designed to offer low flow resistance, which helps save energy. The unique coating method produces a strong structure and also reduces the risk of delamination. The fabric comes in a colour that reflects light.
The Suspension System
This system with its plastic eyelets is also unique and employs a strong continous suspension rib, which runs along the length of the ducting and is welded on. the plastic eyelets contribute to the overall strength of the system. Ventilation ducts in mines and tunnels are exposed to extreme stress, including pressure waves caused by blasting, which put every part of the construction to the test.
Couplings And Hooks
Protan have a wide range of components that contribute to the great flexibility and adaptability of the ventilation system.
Protan Ventiflex qualities are flame retardant, resistant to chemicals, quick and easy to install and maintenance free.
Fittings That CountProtan offer Y pieces, tees, bends, branches, adapters, fan sections and nozzles in standard versions in all diameters, and also customise fittings on the basis of drawings. Our product range in fittings is as follows:
• Y-piece • Tee • Bend • Branch • Adapter • Fan Section • Nozzles • Shaft Ducting • Spiral Duct
Ventiflex shaft ducting comes with steel wires and turn- buckles fitted and with two, three or four suspension ribs, as required.
CouplingsDuring 60 years of experience with ventilation systems Protan has developed couplings for easy installation. The couplings secure the risk for leakage under high pressure and has a long lifetime.
VF Coupling - User-friendly steel coupling with steel ring welded in and VF compression ring on outside.
LP Coupling - The same as the VF coupling, but stronger. Avaliable with nut for tightening by machine.
Velcro Coupling - Simple assembly and disassembly. Flexible, quick and easy to store.
Zip Coupling - Simple assembly. Flexible, quick and easy to store.
HooksVentiflex hooks is the result of 60 years of experience of supplying ventilation systems for mines and tunnels. Ducts come with one hook per metre as standard. The hallmark of the hooks is their quality to resist big strain.and galvanized to ensure long life-time, easy to install and de-install.
VF Hook - Standard hook. Height to suspension wire can be adjusted by a soft steel wire fitted to the hook.
LP Hook - Attaches straight onto the wire. Simple and quick to fit.
Snap Hook - Attaches straight onto the wire. Simple and quick to fit.
S Hook - Quick-release solution.
Suspension SystemThe suspension system with its plastic eyelets is also unique and employs a strong continous suspension rib, which runs along the length of the ducting and is welded on.
Textile and coating make up a unique fabric and the suspension system makes the duct even stronger. The suspension system with its plastic eyelets is also unique and employs a strong continous suspension rib, which runs along the length of the ducting and s welded on. The plastic eyelets contribute to the overall strength of the system. Ventilation ducts in mines and tunnels are exposed to extreme stress, including pressure waves caused by blasting, which put everey part of the construction on the test. Protan use plastic eyelets, which are stronger than brass eyelets. The eyelets have a standard spacing of 0.5 metres, which provides optimum flexibility during installation.
Duct Qualities
Protan Ventiflex is made in various thicknesses of fabric for different pressures and requirements.
Having the best possible ventilation duct is of great importance to both workers and machines. A ventilation duct of good quality makes for more fresh air to the workplace, a lower number of injuries, less extensive injuries and requires less power from the fan in comparsion with a ventilation duct of poorer quality. The strength originates from the yarn and the weave. Plastic on both sides protects the yarn and the weave against both wear and externally imposed stresses.
Protan Ventiflex is made in various thicknesses of fabric for different pressures and requirements. We wupply diameters of 200 - 3000 mm and lengths of 10 - 500 m:
Ventiflex 9104FR Ventiflex 6298FR Ventiflex 6698FR Ventiflex 7498FR
We also have two antistatic qualities:
Ventiflex 7198FRAS Ventiflex 7498FRAS
AccessoriesProtan can help with installation and maintenance. If the worst happens and the fabric is holed, we know what needs to be done to achieve a good outcome. We supply practical, versatile repair kits for Ventiflex. The Ventiflex repair kit contains:
Hot-air welding machine and Pressure Roller -
Ventanon and Ventlim -
Ventiflex pressure band
During tunnelling it can happen that too little air is reaching the face. A small hole may need repairing.
Ventilation Ducting
