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Corrugated Metal Gaskets
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DESCRIPTION
These grooved metal, gaskets comprise a metal core with concentric
grooves on either side, and usually a soft layer of sealing material
bonded to both grooved faces.
TYPICAL APPLICATIONS
Flanges of high temperature/pressure pipe work and vessels where
operating conditions can fluctuate; also heat exchangers. |
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PRIME FEATURES
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Accommodate a vast range of operating conditions.
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Line temperatures and pressures up to 1000°C or 250bar.
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Undamaged cores can often be fitted with new soft faces to
reduce maintenance costs.
MAXIMUM OPERATING TEMPERATURES OF FACING MATERIALS
| Compressed non-asbestos fibre |
450°C |
| Standard purity graphite (oxidising media) |
500°C |
| Standard purity graphite (inert/reducing media) |
600°C |
| Standard purity graphite (steam) |
650°C |
| High purity graphite (oxidising media) |
500°C |
| High purity graphite (inert/reducing media) |
600°C |
| High purity graphite (steam) |
650°C |
| Fluolion PTFE |
260?/td>
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Aluminium and silver also available.
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OPERATING PRESSURE
Standard gaskets: 250bar max.
SERRATED METAL CORES
Available in stainless steels 304, 304L, 316, 316L, 316Ti,
321 and 347; Monel 400 and K500; nickel 200; Inconel 600, 625 and X750;
Incoloy 800 and 825; titanium; Hastelloy HB2 and C276; copper.
SIZES
Standard diameters from 10mm NB up to 3600mm NB. Standard thicknesses:
3.0mm and 4.0mm cores with 0.5mm soft facings either side. Non-standard
thicknesses: from 2.0mm core upwards.
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DF358B |
DESCRIPTION
Gasket with a soft pliable core, surrounded by a metal jacket
that totally or partially encloses the filler. Pass partition
bars can be incorporated, either integrally or welded into the
gasket. Jacket may be corrugated.
TYPICAL APPLICATIONS
- Heat exchangers.
- Boilers and flues.
- Autoclaves and other pressure vessels.
- Gas mains.
- Pumps, valve bonnets.
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MATERIALS
Fillers ?inert organic compounds, expanded graphite,
Fluolion?PTFE, ceramic fibre.
Jackets ?soft iron, low carbon steels, stainless steels, nickel
alloys, Monel, Inconel, aluminium, brass, copper, titanium.
HOW SUPPLIED
To industry, national and international standards, or
customer specification. Material combinations may be selected to
suit operating conditions.
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DF358C |
DESCRIPTION
Standard gasket comprises compressed fibre insert
encased with metal sheet on its flange surfaces and inner edges:
outer edges may also be encased.
PRIME FEATURE
Often manufactured to suit unusual requirements.
TYPICAL APPLICATIONS
- Cylinder heads ?many veteran motor vehicles rely on
Copandas gaskets to keep them running!
- Other duties involving high temperature and dry heat.
- Heat exchangers, and similar duties involving steam, hot
water, hydrocarbons, or weak acid or alkali solutions.
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MATERIALS
Fillers ?usually non-asbestos Millboard, Chieftain?or
Centurion?jointings. Cladding ?copper.
HOW SUPPLIED
In materials to suit the application, and to any reasonable
shape, size and quantity.
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DF358D |
DESCRIPTION
Thin sheet metal gaskets with pressed corrugations ?usually
concentric around the bore.
PRIME FEATURES
- Surface configuration enables the gasket to adapt to
irregular flanges without undue compressive load.
- Provide efficient seal under varying conditions of
temperature and pressure.
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MATERIALS
Usually formed from 0.25mm thick
brass, but virtually any malleable material will be considered.
HOW SUPPLIED
In material to suit the application, and to any practical
shape, size and quantity.
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