KLINGER®Maxiprofile 109

Characteristic & main applications

The Maxiprofile is a composite gasket, which utilises a serrated metal core with a soft facing material. The metal core is machined on each contact face with concentric serrations to a specific profile which provide high pressure areas, ensuring that the soft coating flows into any imperfections in the flange even at relatively low bolt loads.

Standard core design is parallel which offers the advantage 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.

The result is a gasket, which combines the benefits of soft cut materials with the advantages of seal integrity associated with metallic gaskets. The Maxiprofile type 109 exhibit excellent results, particularly where high pressures, temperatures and therefore, high bolt loads are to be controlled.

A variety of surface coatings can be applied to service high temperature, pressure or corrosive media applications. Temperature range from cryogenic to 1000°C with a wide chemical resistance.


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Application of Maxiprofile Gasket

  • Standard flanges, Heat exchanger and vessel applications
  • High and low temperatures
  • Pressures of up to 400 bar
  • Low bolt loads
  • Narrow flange widths
  • Damaged flanges
  • 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 in thermo cycling and shock loading conditions.
  • Can be refurbished with a new facing layer and reused.
  • Can be manufactured in a very wide variety of sizes and shapes according to customer design

Styles of Maxiprofile’s available.

All can be supplied with bars to suit heat exchanger configurations.

CA1,2&3 Convex profiled joints in the same style as LA 1, 2 and 3. The convex profile is designed to assist sealing in bolt load applications.


Style LA1

Lateral profiled joint with guide ring for raised and flat face applications


Style LA2

Lateral profiled joint without guide ring for male and female, tongue and groove and groove flanges


Style LA3

Lateral profiled joint with floating guide ring for raised and flat face applications.

Standard core design

The core design for the standard Maxifrofile style 109 is parallel and shown below

Klinger Maxiprofile 109 Graph

Facing materials

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

Facing materials minimum and maximum operating temperatures

Graphite -200 to 500°C
PTFE -200 to 260°C
Mica to 1000°C
KLINGERSIL®C-4430 -196 to 250°C

Core material maximum temperatures

316L Stainless Steel 800°C
304 Stainless Steel 650°C
Duplex UN S31803 800°C
347 Stainless Steel 870°C
321 Stainless Steel 870°C
Super Duplex 600°C
Inconel 600 & 625 1000°C
Incoloy 825 600°C
Monel 400 800°C
Nickel 200 600°C
Titanium Gr7 & Gr2 500°C
Hastelloy B-2/B-3 700°C
Hastelloy C-276 700°C
Alloy 20 600°C

For all other core materials please consult Khong Lieng.

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