Description
Double jacket gasket with soft pliable core, surrounded by a metal jacket that totally or partially encloses the filler material. Partition bars can be incorporated , integrally or welded into the gasket.
Typical applications
>Heat exchangers
>Gas mains
>Boiler and fues
>Pumps.
> Valve bonnets
Materials
Jackets: Soft iron, low carbon steel, stainless steel, nickel, copper, aluminium, brass, titanium, monel, etc.Filler: Expanded graphite, ceramic, PTFE, etc.
Metal Jacketed Gasket Normal Shapes
Tolerance
The gasket thickness tolerance is (+0.03 inch., -0.000 inch) (+0.8mm, -0.0mm)
>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);
>There are no Class 400 flange for NPS 1/2 through NPS 3 (Use Class 600);
>There are no Class 600 flanges for NPS 1/2 through NPS 2-1/2 (Use Class 1500);
>There are no Class 2500 NPS 14 and larger