Garlock 432 Spiral Vee Set
CROSS SECTION |
VEE HEIGHT |
ADAPTER HEIGHT MALE + FEMALE |
1-1/8” |
0.453 |
1.250 |
1” |
0.406 |
1.125 |
7/8” |
0.375 |
1.000 |
3/4" |
0.328 |
0.844 |
5/8” |
0.281 |
0.718 |
9/16” |
0.234 |
0.656 |
1/2" |
0.234 |
0.594 |
7/16” |
0.234 |
0.500 |
3/8” |
0.188 |
0.438 |
CHEVRON®
Packings for High Pressure Service
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 considerations that can be used to overcome
problems experienced with standard components (such as 432, 433, etc.).
"D" filler 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 CHEVRON® Vee Rings.
When pressure ranges exceed those normally satisfied 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, 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 configurations have been used successfully to extend the
life of CHEVRON® packing sets. However, specific applications should be
considered on an individual basis, taking into account the type of equipment,
size, temperature, media being sealed, pressure, surface speed, condition of
equipment and any other contributing factors.
Min. Temperature: |
-40
(° F) |
Max. Temperature: |
275
(° F) |
Max. Pressure: |
2000
(PSI) |
Min. Shaft Diameter: |
0.25
(°F x PSIG) |
Max. Shaft Diameter |
90
(°F x PSIG) |