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Style 7085
 

Compressed Sheet

NOVATEC 925F Engineered Graphite

NOVATEC's high percentage of graphite and low percentage of rubber binder gives it such remarkable media and temperature resistance that all other compressed sheets is now obsolete.
 

NOVATEC  925F is Frenzelit's universal high pressure compressed sheet gasket material and it contains 75% pure graphite. This is an excellent chemical sheet that works best in flanges, pump casings, heat exchangers, lids, vessels, valve bodies and sight glasses. It can replace flexible graphite in many applications. This sheet is easily identified by its grape colored "easy release" non-stick coating.
 

Frenzelit's NOVATEC Engineered Graphite easily replaces the competitions compressed sheets. See our "Compressed Gasket Sheet Comparison" for details. 
 

Our "Gasket Installation Procedure" must be followed to assure optimum performance in your gasket application. 

Temperature
925oF/500oC
Pressure 2000 PSI
Color Grape
Composition Graphite
pH 2 - 14
Density 98 lb./ft3
Leachable Chlorides Less than 100 ppm
PxT Values 1/16" - 600,000 3/32" - 260,000
Fire Safe Tested DIN Approved
Thickness .020", 1/32", 1/16", 3/32", 1/8"
Sheet Size 60" x 60", 60" x 80"
ASTM F 104 Tests 1/32" Thick
F 38 B Creep Relaxation

22 hours @ 212oF (100oC)

22 hours @ 392oF (200oC)


 

12% 

30%

F 37 A Sealability

Fuel A @ 14.5 PSI/Gasket Load 1000 PSI 

.20 ml/hr
F 37 B Sealability

Fuel A @ 9.8 PSI/Gasket Load 500 PSI

Nitrogen @ 30 PSI/Gasket Load 3000 PSI

.06 ml/hr 

.075 ml/min

F 146 Thickness Increase

Oil #3, 5 Hrs @ 300oF

Fuel B, 5 Hrs @ 73oF

< 2% 

< 1%

F 36 A Compressibility

5000 PSI Gasket Load

15%
F 36 A Recovery 40%
F 152 Tensile Strength 1500 PSI
DIN 3535 Part 6 Gas Permeability

Nitrogen @ 580 PSI/Gasket Load 4640 PSI

.02 cc/min
DIN 52913 Stress Relaxation @ 7250 PSI

16 Hrs @ 347oF

16 Hrs @ 572oF

Stress Retained > 6500 PSI 

Stress Retained > 5000 PSI

DIN 3754 48 Hrs @ 75oF Thickness Increases

H2S04 Sulfuric Acid 65% Concentration

Na0H Sodium Hydroxide 25% Concentration

6% 

.5%

As in all compressed sheets the P x T values decrease significantly as the thickness increases. Our maximum temperature, pressure and P x T values cannot be exceeded.
 
 
 
 
 
 
 
 
 
 
 
 
Phelps Industrial Products, Inc., 6300 Washington Boulevard, Elkridge, Maryland 21075-5397