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Polytop Sets
These unique set confgurations have found wide-
spread popularity due to their high sealing effciency.
A Garlock Polytop CHEVRON® set utilizes both
squeeze and multiple lip type seals. Used in a set
confguration, these two proven designs combine to
provide maximum sealing performance.
Squeeze seals, such as the Garlock 9220 polyure-
thane U-Seal, provide excellent low pressure sealing
performance. Lip seals, such as Garlock 432 CHEV-
RON®, provide low friction rates while maintaining
responsiveness to pressure fuctuations.
Compounded from the highest quality urethane, the
Garlock 9220 U-Seal is strong and abrasion-resistant.
In the Polytop confguration, it replaces the traditional
top adapter used with vee sets and provides an addi-
tional sealing lip.
The fabric and rubber composition of Garlock 432
CHEVRON® provides a strong, yet fexible, sealing
system that dampens any pressure surges.
Unlike typical vee sets, Garlock Polytop sets need
no axial preload or adjustment after startup, virtually
eliminating the fear of catastrophic failure.
SLUDGE-PAK®
Packing
For vertical sludge pumps
These unique, combination sets from Garlock for
use in Carter, Marlow, Komline Sanderson and Pas-
savant vertical sludge pumps have gained wide accep-
tance in the waste treatment industry.
SLUDGE-PAK® hydraulic packing sets are designed
to reduce the friction and abrasion so often associated
with vertical sludge pumps. This unique packing ar-
rangement decreases the chance of scoring plungers
as might occur with the use of a packing set consisting
only of braided packing.
The set’s function is based upon the qualities of
three types of packing. In the bottom of the stuffng box
is Style 8921-K. Next is Style 432 CHEVRON® sealing
rings. Topping off the set is a Style 9220 GARTHANE®
(urethane) U-seal.
Garlock SLUDGE-PAK® packing is the best of three
worlds… braided packing, CHEVRON ® rings and ure-
thane U-seals. The performance is unbeatable and
necessary in today’s waste treatment
industry.
Features Benefts
The best properties of ¦ Longer life, fewer
each component repacks
improve sealability
Combined styles react ¦ Less chance of costly
better to varying premature failure
pressure conditions
Individual components ¦ Reduces expensive
do not cause downtime and wear
equipment damage on spare parts
Polytop sets and SLUDGE-PAK® packing
Polytop sets and SLUDGE-PAK® are similar in design
because they combine different styles of packing. In
performance, where it counts, these unique sets offer
some signifcant features and benefts.