Specification of CHESTERTON TYPE TWO - GLAND PACKING
Two
High Speed Graphite
Chesterton Two high speed graphite packing is manufactured from a pure quality
graphite yarn braided in interbraid construction, then treated with special, high
temperature, break-in lubricants. The special sacrificial multi-temperature lubricants
are used to ease break-in and quickly effect a satisfactory leakage rate. Once the
break-in lubricants are sacrificed, the remaining super-graphite product has the
chemical resistance to withstand virtually all chemicals. The highest conductivity
of this packing combined with the automatic self-lubricating properties allow use
with virtually no shaft scoring.
Technical Data
Temperature Limit:
2760°C (5000°F) nonoxidizing
425°C (800°F) oxidizing
Shaft Speed:
23 m/s (4500 fpm)
Chemical Resistance:
pH 0 to 14 except oleum,
fuming nitric acid, aqua regia,
and fluorine
Applications:
Virtually all pumps and valves
against most solvents, gases,
and other liquids
