Page 172 - GarlockFluidSealing2010

E-8
Design Parameters
Number of Vee Rings by Application
Piston Applications
Clearances
If excessive clearance exists between the cylinder wall
or the shaft and the component supporting the female
adapter, operating pressure will extrude the adapter into
the clearance. The greater the pressure and clearance,
the more quickly extrusion will occur. In a clean system,
where concentricity requirements are met, and where
minimum clearances are held, optimum seal life can be
expected.
Note:
See Stack Height Table on page E-6 for the height of the Vee rings plus
male and female adapter rings per set. This table is for general guidance.
Many satisfactory Garlock CHEVRON® packing installations can be made
with variations in the recommended equipment or packing guidelines.
Zero to 1,000 psi 1,000-2,500 psi 2,500-4,000 psi 4,000 psi and Up
Diameter of Cross Vee Rings Cross Vee Rings Cross Vee Rings Cross Vee Rings
Cylinder Section per Set Section per Set Section per Set Section per Set
1" to 2" 1/4" 3 1/4" 4 5/16" 4 3/8" 5
2" to 3" 5/16" 3 5/16" 4 5/16" 4 3/8" 5
3" to 6" 3/8" 3 3/8" 4 3/8" 4 3/8" 5
6" to 8" 1/2" 3 1/2" 4 1/2" 4 1/2" 5
8" to 14" 5/8" 3 5/8" 4 5/8" 4 5/8" 5
Rod, Plunger or Ram Applications
Recommended Adapters for Pressure Ranges
Adapter Type 1,000 psi 2,000 psi 3,000 psi 5,000 psi
Standard Fabric ¦ ¦
Rockhard Fabric ¦ ¦
Bronze ¦ ¦
MARBLOCK® ¦ ¦ ¦
Zero to 1,000 psi 1,000-2,500 psi 2,500-4,000 psi 4,000 psi and Up
Diameter of Rod Cross Vee Rings Cross Vee Rings Cross Vee Rings Cross Vee Rings
Plunger or Ram Section per Set Section per Set Section per Set Section per Set
1" to 3" 1/4" 4 1/4" 5 5/16" 5 5/16" 6
3" to 6" 1/4" 4 5/16" 5 3/8" 5 3/8" 6
6" to 8" 5/16" 4 3/8" 5 1/2" 5 1/2" 6
8" to 14" 3/8" 4 1/2" 5 1/2" 5 5/8" 6
14" to 24" 1/2" 4 5/8" 5 5/8" 5 3/4" 6
24" to 36" 5/8" 4 3/4" 5 3/4" 5 1" 6
36" and Up 3/4" 4 1" 5 1" 5 1" 6
3YSTEM 0RESSURE PSI
4OTAL
2ADIAL
%XTRUSION
'AP
INCHES