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James Walker® Gaskets & Jointings > Metallic & semi-metallic gaskets



  Metallic & semi-metallic gaskets
Metcom Gaskets
 
DESCRIPTION EYELETTED GASKETS
A thin corrugated steel joint with pressed concentric grooves 6mm wide. Two adjacent grooves on opposite surfaces are filled with beads of Supagraf® Tape either standard or high purity grades. When compressed between flanges, the metal corrugations provide a sealing capability that is enhanced by the graphite beads.

PRIME FEATURES
• Thinner than a spiral wound gasket and can usually be fitted in place of sheet jointing gaskets in a pipe run.
• Often easier to install than a sheet graphite gasket – self locating.
• When supplied with tapered-slot legs, this gasket can be used on a variety of flanges with differing bolt diameters and pitch circles.
 
PHYSICAL PROPERTIES
Standard metal cores SS304, 316L (others available)
Supagraf® sealing material thickness 0.35mm to 0.5mm
Nominal overall thickness 1.5mm
Compressed thickness 0.5mm
 
SERVICE CAPABILITIES
Maximum temperature (oxidising media) 500°C
Maximum temperature (non-oxidising) 550°C
Maximum temperature (steam) 650°C
Pressure range (depending on temperature) Vacuum to 400bar
 
OPTIONAL SEALING MATERIAL
PTFE is available for aggressive chemical conditions. Restricted service capabilities apply – please contact our technical services team for assistance.
 
HOW SUPPLIED
Multiflange configuration: 0.5 inch to 12 inch Class 150–2500. Individual flange configuration: 0.5 inch to 24 inch Class 150–2500. Other sizes on application.