GRAPHITE FOIL
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ТУ 5728-003-93978201-2008
Graphite foil (TEG foil) is in essence a roll graphite material (both reinforced and non-reinforced), obtained by rolling the thermally expanded graphite.
TEG foil is used as material for production of the following:
- graphite ribbons (smooth, corrugated, radius ribbons);
- sealing rings;
- woven gland packing;
- sealing gaskets,
- heat shields ,electromagnetic screens;
- chemically- and heat resistant conducting membranes;
- chemically resistant lining materials;
- seals for irregularly shaped flanges.
Properties
0,1 ÷ 0,8 mm
Thickness
≤ 150 m
Length
400/1000/1500 mm
Standard roll width
≤ 40 MPa
Permissible pressure the environment
0,6 ÷ 1,4 g/cm3
Foil density
-253 ÷ +650°С
Acceptable temperature range
Advantages
The main advantages of using TEG foil for sealing the irregularly shaped flanges, e.g. horizontal connectors of pumps, turbines, and compressors are:- ease of fabrication of the gasket involving sticking of the foil with its adhesive layer directly to the flange and subsequent cutting out to the flange contour;
- possibility of restoration of the damaged gasket by means of “patching” with foil.