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.
