Mining Hoses

The Flexible duct is made in the framework and the plastic cloth. It is capable to endure high temperature, acid, alkali and is flame resistant. It is easy to turn and to connect and convenient to shape. It is extensively used in the construction, mining tunnels, in bad air environment conditions and in industry as general purpose duct hose.
CONSTRUCTION
The self governed and increase diameter
The metal ring
The saffron plastics PVC cloth
The black PVC steel wire
The nozzle trussing with rope (with buckle)
MARKING
Flexible ducts are packed in compressed form in variety of lengths with plain end or as assemblies with special fittings attached to either or both ends.
SAFETY FACTOR
Material : 18 oz/sq yd polyester reinforced PVC fabric and insulation
Flame Resistant : Per UL94VTM-O Test Methods
Temperature Range : 20F to +200F (-29C to 93C)
Max Air Pressure : 55”(1400mm) water gauge
Color : Yellow, Red and others
FITTINGS
Diameters generally range from 2” (50mm) to 60” (150mm). Most flexible ducts are slightly oversized in diameter to fit over standards sheet metal fittings.