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Dalfratex®

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Dalfratex®

Dalfratex® is a range of inorganic fibres and textiles that are capable of operating continuously at 1000°C and up to 1600°C for limited periods.

It is available in many forms such as:

– Textile cloths,
– Tapes,
– Sleevings,
– Cords,
– Braided packings,
– Ropes,
– Bulk fibres & batts.

They will not melt or vaporize until temperature exceeds 1700°C, and have a high resistance to thermal shock.

Dalfratex® products also provide flexible electrical insulation at temperatures as high as 1000°C. They are composed of continuous filaments of amorphous silica, which combine the flexibility of fibres and textiles, with the refractory properties of silica.

In order to service the needs of a wide range of applications the majority of Dalfratex products are available in two basic forms – standard and pre-shrunk. The standard form shrinks during initial heating and products of this type have letter ‘U’ incorporated into the code number. As their name implies, the pre-shrunk forms have been factory treated to confer better dimensional stability in high temperature use.

In addition to these forms a wide range of sacrificial organic finishes are available which may be applied to particular products where required for specific end uses.

Chemical Analysis – Calcined Basis:
Silica 98.57%
Alumina 0.47%
Iron Oxide 0.08%
Lime 0.05%
Magnesia 0.07%
Titania 0.30%
Alkalis 0.13%
Boric Oxide 0.06%

FEATURES

– Low thermal conductivity
– Low heat storage
– Reduces fume emission around refractory
– Excellent thermal shock resistance
– Resistance to gas velocity
– Easy to install
– Adheres to most ceramic and metallic surfaces
– Excellent corrosion resistance
– Inert to most chemicals
– Impermeable to molten aluminium, zinc, copper & lead
– Contains no asbestos

TYPICAL APPLICATIONS

– Aerospace (gas turbine rocket engines)
– Metallurgical/steel production
– Glass manufacture
– Fire protection
– Electrical heating
– Pipeline and vessel fabrication
– Gas production
– Nuclear power
– Electricity generation
– Petrochemical

BENEFITS

RESOURCES

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