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Description
James Walker Metaflex® gaskets are wound in V-section metal strip and a softer filler material. Support rings, inside and/or outside the spiral, improve the gasket's handling, fitting and versatility.
In operation, flange faces are presented with a spiral of alternate metal/filler layers. This sealing arrangement is highly succesfull on flanges where temperature, pressure, vibration or flow rates are beyond the capability of conventional jointing materials.
Typical applications
Pipelines and pressure vessels on steam, petrochemical, nuclear, marine and hydraulic plant; also heat exchangers.
Prime features
Specifications
Maximum operating temperatures of facing materials
XA Compressed non-asbestos fibre: 500°C.
SPG Standard purity graphite (oxiding media): 500°C.
SPG Standard purity graphite (inert/reducing media): 600°C.
SPG Standard purity graphite (steam): 650°C.
HPG High purity graphite (oxidising media): 500°C.
HPG High purity graphite (inert/reducing media): 600°C.
HPG High purity graphite (steam): 650°C.
Fluolion® PTFE: 260°C.
HTF High temperature filler: 1000°C.
Aluminium and lead are also available.
Operating pressure
Metaflex gaskets seal up to 35MPa/350bar, although higher pressures can be considered. Please consult our Technical Support Team when considering higher pressures.
Metal winding strips
Support rings
Sizes
Nominal Compressed Minimum Maximum
thickness thickness diameter diameter
2.5mm 1.9/2.1mm 10mm 300mm
3.2mm 2.4/2.6mm 10mm 760mm
4.5mm 3.4/3.45mm 10mm 1520mm
7.3mm 4.7/4.9mm 60mm 3550mm
Largest non-standard gaskets manufactured to date are 5070mm diameter.
How supplied
Almost any combination of component materials is available. Profiles include circular, obround, square, oval and diamond. Gaskets for non-standard flanges are made to order.
Click here to download the James Walker Moorflex gasket product guide pdf (1.72MB)
Click here to download the James Walker Moorflex gasket technology guide pdf (1.45MB)
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