Page 186 - publication

technical data
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GRUVLOK GASKET-STYLES
Gruvlok offers a variety of pressure responsive gasket styles. Each serves
a specifc function while utilizing the same basic sealing concept. Proper
installation of the gasket compresses the inclined gasket lips on the pipe
O.D., forming a leaktight seal. This sealing action is reinforced when the
gasket is encompassed and compressed by the coupling housings. The
application of internal line pressure energizes the elastometric gasket
and further enhances the gasket sealing action.
The “C” Style cross section
confguration is the most widely used
gasket. It is the gasket style provided
as standard in many Gruvlok Couplings
(Fig. 7000, 7001, 7003, 7004HPR, 7307,
7400 and 7401). Grade “E” and “T” are standard grades while other grades
are available for special applications.
“C” Style roughneck®
This “C” style gasket is
similar in appearance
and design to the
Standard gasket but is
only used with Fig. 7005
Roughneck Couplings and Fig. 7305 HDPE Couplings. The Roughneck gasket
is wider, which allows for minor pipe end separation as line pressure sets
the grippers into the plain end pipe.
end guard® Flush Gap®
The projecting rib fts between the ends
of lined pipe to prevent damage to
unprotected pipe ends during coupling
joint assembly.
The E.G. gasket is provided as standard
with the Fig. 7004 E.G. Coupling.
Grade “E” and “T” gaskets are available.
Designed to prohibit contaminates
from building up in the gasket cavity.
The centering rib fts fush over the gap
between the two pipe ends thus closing
off the gasket cavity. It can be used with
Fig. 7000, 7001, 7003, 7004, 7400 and 7401 Couplings for many applications.
Recommended for use in dry fre protection systems. Not recommended
for use at temperatures above 160°F.
reducing coupling Flange
The centering rib allows for
pipe positioning and serves
to keep the smaller pipe from
telescoping during installation.
Used only with the Fig. 7010
Reducing Coupling.
A specially designed gasket for the Fig. 7012, 7013
and 7312 Flange provides for a reliable seal on
both the pipe and the mating fange.
Sock-It® clamp-T®
Used in Sock-It fttings only,
this pressure energized gasket
provides a leak-tight seal on
plain end seal pipe. Available in
Grade “E” material only.
These gaskets conform to the
curved exterior of the pipe to
provide a pressure responsive
seal. This unique design is only
used with Fig. 7045, 7046 Clamp-T
and Fig. 7047, 7048, and 7049
Clamp-T Crosses.
GL-2.10