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PTFE
fiber packing in pure PTFE fiber packing but with
Greatly enhanced ability to seal high-speed shafts with
the addition Of inactive and heat-resisting agents.
It maintains the same features as FP-550F; resistance
to chemical and mechanical Attacks. Great dimensional
stability.
effective seal with low gland Pressures, etc.
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As
PTFE is low in thermal conductivity and big in thermal
Expansion. frictional heat is not conducted to the outside
of the stuffing box but trapped inside and damages the
packing, thus this packing is not recommended for high
speed pumps
