SPIRALIT® AF 707 Packing
Diagonally braided from high quality pure carbon fibre yarn, impregnated with graphite and a corrosion inhibitor. Please note: the colour of the actual product might vary from the above image on this data-sheet.
SPIRALIT AF 707 lacks the usual stiffness of conventional carbon packings. Good flexibility and heat dissipating properties, very low coefficient of friction. Excellent chemical and thermal stability. It prevents gap-extrusion of the soEer flexible graphite.
Because style AF 707 is a very affordable high quality all-round packing, many companies have standardized on it. Because its coefficient of thermal expansion is very similar to that of steel it needs less adjustments of the gland. Low coefficient of friction means low shaE wear. Its low specific gravity results in excellent economy. Style AF 707 closes the gap (also price-wise) between conventional packings and pure graphite packings.
Application: Can be used equally well in pumps, also boiler feed pumps, valves, mixers, refiners, etc. in many different industries like pulp- and paper, power stations, chemical and pharmaceutical industry and many more.
User: SPIRALIT AF 707 covers the full pH-range and can be used with nearly all media: cold and hot water, steam, chemicals, hot gases, alcohol, solvents, heat transfer agents, etc.
Not suitable for highly concentrated corrosive acids.