Metal jacketed gaskets comprise of a thin metallic outer shell enclosing a resilient filler material. The gaskets metal case protects the resilient filler and is resistant to pressure, temperature and corrosion. Metal jacketed gaskets are hand made and are available in many shapes and sizes with a selection of metals and fillers available. Internal ribs of any configuration are available.These gaskets are widely used in heat exchanger applications but require good and even flange surfaces along with high bolt loads to effect a seal.
Single jacketed gaskets have one surface and both OD and ID covered by the metal jacket. Suitable for narrow flange widths in low pressure valve / pump applications.
Double jacketed gaskets are completely enclosed by a two piece metal jacket covering OD, ID and both sealing surfaces. Widely used in heat exchanger applications and suitable for corrosive and high temperature service.
Internal ribs (pass partition bars) can be integral or welded welded as in both types, the primary seal is safely maintained.
APPLICATION
◎ 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.
