Applications

The Special Silica Seal-----Polyfluortetraethylene Seal Element has the technology introduced from Kanals company of Germany. The main products are seal rings of rotating connection(specially for sea and land transporting arms form a complete set), polyfluortetraethylene pipe, piston ring, ring of supporting, ring of leading and all kinds of washers, line four fluorine pipe fittings of flange, pipe fittings of polyfluortetraethylene. They have good mechanical performance and strong sealing property, and also are suitable for any corrode the medium strongly.
We also can design and produce all kinds of polyfluortetraethylene seal products according to the users' demands.

Technical Parameter

Tensile Strength: 140-160kg/cm2
Compression strength: 507kg/cm2
Rub the mark: 2-6mm
Hardness of cloth: 4.9-5.5
Density: 2-2.5g/cm3
Use temperature: -180℃-250℃
Assault toughness: 24 kg/cm2
Coefficient of friction: 0.11-0.25
Heat conduction coefficient: 0.4-0.45 kCat/m.hr. ℃
Coefficient of line expansion:
18--60℃ 2.2x10/℃
18--90℃ 5.83x10/℃
18--120℃ 7.94x10/℃
18--142℃ 8.78x10/℃