Page 173 - GarlockFluidSealing2010

E-9
For large diameter, deep stuffng box
applications
¦Easier installation—fewer rings required
¦Quicker turnaround—rings won’t “roll-over” during
installation
¦Wide variety of styles—choose from the many popular
fabric and rubber styles available from Garlock to suit
your application
¦Few size restrictions—made in our continuous
process, so large diameters are no problem
¦Most popular cross sections are: 5 /8", 3 /4", 7 /8", 1"
In unusually high pressure applications,
CHEVRON® packing might need to be reinforced to
prevent undue distortion from this extreme pressure.
The following are examples of some design consider-
ations that can be used to overcome problems expe-
rienced with standard components (such as 432, 433,
etc.).
“D” fller rings can be installed in the groove of the
hinge-type CHEVRON® Vee Rings to prevent distortion
of the packing without interfering with the automatic
hinge action of the rings. If the CHEVRON® Vee Rings
still tend to telescope into each other, metal separators
(lead or bronze) can be installed between the CHEV-
RON® Vee Rings.
CHEVRON® Packings for
High Pressure Service
CHEVRON® packing
with “D” shaped fller rings.
CHEVRON® packing
with metal separators
and adapters
WARNING:
Properties/applications shown throughout this brochure are typical. Your specifc applica-
tion should not be undertaken without independent study and evaluation for suitability.
For specifc 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 feld testing,
customer feld reports and/or in-house testing. While the utmost care has been used in
compiling this brochure, we assume no responsibility for errors.
Specifcations subject to change without notice. This edition cancels all previous issues.
Subject to change without notice.
Deep Vee CHEVRON® Packing
“D” fllers can be used only with 3/8" cross sec-
tions and up with hinge type “XE” CHEVRON® rings
per illustration A, page E-7.
When pressure ranges exceed those normally satis-
fed with standard Style 432, 433 or 532 adapters, the
stronger rockhard adapters such as 260RH, 261RH
and 7857RH should be considered.
When a problem relates to excessive clearances, as
discussed on page E-8, a close tolerance
phenolic (Style 155) or bronze bushing installed behind
the female adapter will act as additional support and
reduce the extrusion gap. A phenolic or bronze female
adapter will serve the same purpose.
These confgurations have been used successfully
to extend the life of CHEVRON® packing sets. How-
ever, specifc applications should be considered on an
individual basis, taking into account the type of equip-
ment, size, temperature, media being sealed, pressure,
surface speed, condition of equipment and any other
contributing factors.