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Keywords: Double Jacket Gasket

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DoubleJacket Gasket is made from graphite, ceramic, non-asbestos etc. filler covered with thin metal jacket, like SUS304,SUS316,Carbon steel, cooper, soft iron etc. with excellent sealing performance, it can be used in sealing spots of pressure vessels, exchanger heat,  condenser, plain hole, etc. The Ripple Double Jacket Gasket can be used in various pipe and flange.

 

APPLICATION:

Double Jacket Gasket is particularly suitable for sealing flat surfaces of heat exchanges, gas pipes, cast iron flanges, cylinder heads of engines as well as for boilers and other vessels.

With efficient sealability, it will exert strong pressure on circular rims of the flanges.Metal-jacketed gaskets can stand up to 30% deviation from the initial thickness, which is very useful in case of irregular or faulty flange rims. The chemical compatibility of the metal and the medium being sealed should be considered.

 
MATERIAL:

Metal material
Din
Material No.
Hardness
HB
Temperature (?)
Density
g/cm3
CS/Soft Iron
1.1003/1.0038
90~120
-60~500
7.85
SS304, SS304L
1.4301/1.4306
130~180
-250~550
7.9
SS316, SS316L
1.4401/1.4404
130~180
-250~550
7.9
Copper
2.0090
50~80
-250~400
8.9
Aluminium
3.0255
20~30
-250~300
2.73
Other special metal Ti, Mon 400 are also available on request.

Metal Jacket Gasket Normal shapes
 
 
 
Tolerance
The gasket thickness tolerance is (+0.03 inch., -0.000 inch) (+0.8mm, -0.0mm)
(1) For gaskets NPS 1/2 through NPS 24, the outside and inside diameter tolerances are +0.06 inch, -0.0 inch (+1.5mm, -0.0mm);
(2) There are no Class 400 flange for NPS 1/2 through NPS 3 (Use Class 600);
(3) There are no Class 600 flanges for NPS 1/2 through NPS 2-1/2 (Use Class 1500);
(4)There are no Class 2500 NPS 14 and larger
 

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