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GRAPH-LOCK® Gasketing
Benefits
Excellent resistance
¦ Pure exfoliated graphite flake material excels in
extreme conditions, withstanding heat, pressure,
and aggressive chemicals
¦ Proven fire-safe
Reliable seal
¦ Seals easily under moderate bolt load, offers
superior torque retention
¦ Retains dimensional stability in high temperatures;
seals tightly even during pressure fluctuations
Also available:
Style 3120: Nuclear-grade homogeneous sheet
Style 3122: High-purity homogeneous sheet
Versatility
¦ Available in two grades—industrial grade is 98% pure;
nuclear grade is 99.5% pure
¦ Available as standard homogeneous sheet or metal-
inserted sheet for applications requiring extra strength
C-18
HOCHDRUCK® Style 3128
Gasketing
¦ Easy and safe to handle without breakage
¦ Anti-scratch and anti-stick properties built in surface of
gasket
¦ Seals much tighter than standard graphite gaskets
¦ Available with reduced sulfur (3128RS) and with
1000ºF temperature rating (3128HT)
¦ Dove-tails seal tightly
Easy to install
¦ Can be cut with a utility knife
¦ Remains flat during installation
Benefits
High-Performance Reinforced graphite gasket material
with improved sealability characteristics
WARNING:
Properties/applications shown throughout this brochure are typical. Your specific applica-
tion should not be undertaken without independent study and evaluation for suitability.
For specific application recommendations consult Garlock. Failure to select the proper
sealing products could result in property damage and/or serious personal injury.
Performance data published in this brochure has been developed from field testing,
customer field reports and/or in-house testing.
While the utmost care has been used in compiling this brochure, we assume no respon-
sibility for errors. Specifications subject to change without notice. This edition cancels
all previous issues. Subject to change without notice.
GARLOCK is a registered trademark for packings, seals, gaskets, and other products
of Garlock.