ML 4444 GRAPHITE
PACKING
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Construction:
Multi-Lok braid.
Features: The highest
quality chemically resistant graphite
yarns are twisted together and braided in
a fashion, this packing has an extremely
low coefficient of friction. The light
weight yarn provides more feet of length
per pound than standard non-asbestos or
PTFE packings. Graphite is a heat
conductor and dissipates heat in the
stuffing box, permitting higher shaft
speeds and less leakage than other
packings.
Equipment:All rotating
and reciprocating shafts, valves and
agitators. Our best packing for top
separators and outlet devices on
continuous pulp digestors.
Recommended For: b
caustics, acids, chemicals and high
pressure steam.
Limitations:
Temperatures to 1200 F / 649 C in steam,
800 F / 427 C in oxidizing atmospheres;
pH range 0-14; not recommended for fuming
nitric acid, oleum and fluorine.
Remarks: No glazing at
higher speed applications, inert,
virtually indestructable lower
coefficient of friction, thermal
resistance to 500 F / 260 C; and high
compression strength.
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ML
4500 ULTRA GRAPHITE PACKING
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Construction:
Multi-Lok braid.
Features:manufactured
from pure graphite yarns impregnated with
a fine submicron powder of inorganic
graphite. A surface lubricant is applied
to prevent wicking and to provide a
bearing fil between the shaft and the
packing material.
Equipment: *Valves, high
speed shafts, agitator shafts,
reciprocating rods and plunger rods
wherever minimum product leakage is
required under severe service conditions.
Recommended For:caustics, acids and caustics throughout
the full pH range. It is virtually inert.
Limitations: Not
recommended for fuming nitric acid, oleum
and fluorine. Temperatures to 6000 F /
3316 C in non-oxidizing agents, 1200 F /
649 C in steam, and 800 F / 427 C in
oxidizers.
CAN BE NUCLEAR CERTIFIED
* End rings only in conjunction with
flexible graphite rings when used in
valve packing applications. |
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