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GYLON® Style 3565
ENVELON® Gasketing**
Tighter seal
¦ Soft, deformable exterior conforms to surface irregu-
larities; ideal for worn, warped or pitted flanges
¦ Stable blue core improves cold flow resistance
¦ Low bolt load requirements ensure a tight seal on
glass-lined or wavy flanges†
¦ Direct sintering of GYLON® layers prevents leak paths
and adhesive contamination
Easy to install
¦ Unitized construction avoids jacket foldover
¦ Rigid core facilitates installation of large gaskets
Minimizes inventory
¦ Custom-cut gaskets from large sheets offer conve-
nience while reducing costly inventory buildup
¦ Ideal replacement for slit, milled, formed shield and
double jacketed envelope gaskets†
Benefits
WARNING:
Properties/applications shown throughout this brochure are typical. Your specific appli-
cation 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
responsibility 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.
* Consult Garlock Applications Engineering when using flanges in pres-
sure classes above 300 lbs.
** Patents #4,961,891; #4,900,629
† When sealing uneven flanges, gasket must be four times thicker than
maximum gap between flanges.
GYLON® Styles
HP 3560 / HP 3561
Tight seal
¦ Perforated stainless steel core increases resistance to
pressure fluctuations and thermal cycling
¦ GYLON® offers superior cold flow and creep resis-
tance, eliminating the need for frequent retorquing
Chemical resistance
¦ Seals aggressive chemicals in hostile environments
where safety or blowout resistance is crucial*
Benefits
Media
HP 3560: Strong acids (except hydrofluoric),
solvents, hydrocarbons, water, steam,
chlorine, and cryogenics
(For oxygen service, specify "HP 3562
for oxygen service.")
HP 3561: Strong caustics, moderate acids,
chlorine, gases, water, steam, hydro-
carbons, cryogenics, and aluminum
fluoride
(For oxygen service, specify "HP 3563
for oxygen service.")
Style 3565: Moderate concentrations of acids
ENVELON® and caustics, hydrocarbons, solvents,
cryogenics, and glass-lined equipment.
Conforms to FDA regulations.