Metal Gaskets
We offer a wide range of metal gaskets
Spiral Wound Gaskets
Spiral wound gaskets are special semi-metallic gaskets of great
resilience, therefore they are very suitable for applications
featuring heavy operating conditions. Spiral wound gaskets are
manufactured by spirally winding a V-shaped metal strip and a strip
of non-metallic filler material. The metal strip holds the filler,
providing the gasket with mechanical resistance and resilience.
Spiral wound gaskets can be reinforced by an outer and/or inner
retaining ring. The outer centring ring controls the compression and
holds the gasket centrally within the bolt circle. The inner
retaining ring increases the axial rigidity and resilience of the
gasket. Spiral wound gaskets should always be in contact with the
flange and should not protrude into the pipe or project from the
flange. Spiral wound gaskets can be used for sealing flange joints,
manhole and handhold covers, tube covers, boilers, heat exchangers,
pressure vessels, pumps, compressors and valves; in industries such
as petrochemical, pharmaceutical, shipbuilding, and food processing,
in power industries and nuclear power stations. They are ideal for
steam, oil, liquids, gases, acids, alkalines, various organic media
and solvents.
Metal Jacketed Gaskets
Metal-jacketed gaskets are particularly suitable for sealing flat
surfaces of heat exchangers, gas pipes, cast iron flanges, and
autoclaves and similar. By their sealing efficiency, provided
by exerting strong pressure on circular rims of the flanges,
metal-jacketed gaskets can stand up to 30 % of 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
Heat Exchanger Gaskets
Heat Exchanger Gasket is a term that has been given to gasket
used in heat exchangers. The structure of the gasket or its type
vary according to operating conditions of the exchangers. The
heat exchanger gaskets come in a broad spectrum of types including
single or double jacketed, corrugated, plain metal, soft and many
other. A large selection of different materials allows heat
exchangers to operate at temperatures beyond the capabilities of
most soft gasket materials.
Ring Joint Gaskets
The metallic ring joint gaskets are manufactured according to the
API 6A and ASME B16.20 standards for application at elevated
temperatures and pressures. The small sealing area with high contact
pressure results in great reliability. The contact surfaces of the
gaskets and flange should be carefully processed. Some types of
ring-joints are pressure activated, that is, the greater the
pressure the better the sealability.
Metal Gaskets
Corrugated metal gaskets have been proven to be both reliable and
cost-effective for the application on flanges and heads where bolt
loading is sufficient. They operation principle is based on
different degrees of hardness of adjacent materials. The sealing
effect is produced by the constant load to which a gasket is
exposed. They are used in applications, which require mechanical
strength, thermal conductivity, as well as temperature and corrosion
resistivity. They can be classified into flat, serrated and
corrugated types, and are particularly useful when compressibility
is not a factor and where sufficient clamping force is available.
Metal gaskets feature greater mechanical strength, better heat
transfer and resistance to higher temperatures and pressures, and
can offer advantages over the clad type gaskets in certain
applications.
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