Graphite
Corrugated

(more info)
Image
 

CORRUGATED FLEXIBLE GRAPHITE  GASKETS
ASTM F868: 9FMF2 (F104: F517000-B1M3)

DURLON® CFG is a corrugated, flexible graphite gasket material designed for severe service conditions.  The proprietary design of the corrugations gives  CFG superior sealing and recovery characteristics for tough conditions in the refining, chemical, petrochemical and pulp and paper industries. DURLON® CFG is suitable for service in steam, oil, water, mild alkalis, mild acids, hydrocarbons and solvents.

 
   
 

Composition
DURLON® CFG consists of flexible graphite laminated both sides to a corrugated stainless 316 core.

One Standard Thickness for all applications: 3/32"
Standard ANSI Class 150 & 300 ring gaskets: 1/2" -- 24"

 

Other Styles on Special Order:

Full Face
Non Standard Sizes 26" -- 96"
MSS SP-44
API 605
Ovals
Handhole
Manway
Heat Exchange
Different Metallurgies

 

Available Sheet Sizes:

SIZE Order Code
Class 150 Rings Class 300 Rings
1/2" CFG1332012 CFG2332012
3/4" CFG1332034 CFG2332034
1" CFG1332010 CFG2332010
1-1/2" CFG1332112 CFG2332112
2" CFG1332020 CFG2332020
2-1/2" CFG1332212 CFG2332212
3" CFG1332030 CFG2332030
4" CFG1332040 CFG2332040
6" CFG1332060 CFG2332060
8" CFG1332080 CFG2332080
10" CFG1332100 CFG2332100
12" CFG1332120 CFG2332120
14" CFG1332140 CFG2332140
16" CFG1332160 CFG2332160
18" CFG1332180 CFG2332180
20" CFG1332200 CFG2332200
24" CFG1332240 CFG2332240

 

Specifications and Gasket Factors:

Temperature, Min: -328°F (-200°C)  
Temperature, Max:    
In Air +850°F (450°C)  
In Steam +1200°F (650°C)  
pH Range 0-14  
Gb psi (MPa) 557 (3.8)  
a 0.325  
Gs psi (MPa) 2.21 (0.02)  

 

Advantages:

Fire Safe:
Passed a modified API 607 fire test at Southwest Research Institute.

Blow-out Resistant:
Metal core counteracts internal pressure spikes.

High Spring-Back:
Excellent recovery in thermal cycling and severe vibration services. Stable leakage control with minimal force.

Superior Emissions Control:
DIN 3535 gas permeability/leakage: <0.01 cc/min

Seals Imperfect Flanges
Flexible graphite fills small voids.

No Inward Buckling:
Corrugations force the flexible graphite up to the sealing surface. No expensive inner rings required.

Seals Imperfect Flanges
Flexible graphite fills small voids.

No Inward Buckling:
Corrugations force the flexible graphite up to the sealing surface. No expensive inner rings required.

Seats on a Variety of Surface Finishes:
60 to 750 rpms.

Easy and Safe to Handle, Install and Remove:
Will not cut. Large Gaskets easily install, will not collapse, fold or unwind. When replacing, cleaning flange serrations is unnecessary.

One Thickness for all Applications:
Reduces gasket inventory. Standardize installation procedures serrations.