Maxiprofile Gaskets

The Maxiprofile is a composite gasket which utilizes a serrated metal core with a soft facing material. The metal core is machined on each contact face with concentric serrations providing high pressure areas and ensuring that the soft coating flows into any imperfections in the flange even at relatively low bolt loads. The result is a gasket which combines the benefits of soft,compressible cut materials with the advantage of seal integrity

Expanded graphite is the most common facing material used for Maxiprofile gaskets, however, other materials can be used, such as PTFE for chemically aggressive applications or mica for high temperature situations.

Facing Material Maximum Temperature
Graphite 550°C
PTFE 260°C
Mica 1000°C
KLINGERsil C-4430 250°C

Maxiprofile gaskets can also be manufactured from a range of core materials according to media compatibility and temperature considerations.

Winding Material Maximum Temperature
Stainless Steel 316L 550°C
Stainless Steel 304 550°C
Monel 400 600°C
Nickel 200 600°C
Inconel 600 900°C
Inconel 625 450°C
Incoloy 825 450°C
Hastelloy B-2 450°C
Hastelloy C-276 450°C
Titanium 350°C

General Properties

Have  a wide range of seating stresses under which the seal is effected and maintained
Can be used when there is insufficient bolt load to seal conventional gasket materials
Easy to handle and fit
Suitable for a wide range of operating conditions
The soft facing layer prevents damage to the flange
Provide a high integrity seal including thermocycling and shock loading conditions
Sealing is not sensitive to uneven bolt loading conditions
Can be refurbished with a new facing layer and reused

Applications

Heat Exchanger and Vessel applications
High and low temperatures
Pressures of up to 250 bar
Low bolt loads
Small flange widths
Damaged flanges

Core Design

Standard core design is parallel which offers the advantages of even stress distribution across the gasket face. Convex Maxiprofiles are also available which have a reduced depth of grooves towards the profile centre. This type of profile ensures a high seating stress in the middle of the profile and is effective for low bolt load applications.

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