Characteristic & main applications

KLINGER® PSM is available in the unique AS (anti stick) or G configuration.

A tanged steel insert is included for improved blow out resistance and ease of handling.

Due to the excellent chemical and thermal capabilities of graphite it is used extensively throughout the petrochemical and chemical industries for process duties and steam applications.

Fire safe certified API 6FB.



Pure exfoliated graphite with a tanged stainless steel sheet reinforcement.

pT diagram

The Klinger pT diagram provides guidelines for determining the suitability of a particular gasket material for a specific application based on the operating temperature and pressure only. Always refer to the chemical resistance of the gasket to the fluid.

1. In area one, the gasket material is normally suitable subject to chemical compatibility.
2. In area two, the gasket materials may be suitable but a technical evaluation is recommended.
3. In area three, do not install the gasket without a technical evaluation.

Technical Data – Typical values for 1.5mm thickness

Compressibility (ASTM F36J) 35%
Recovery (ASTM F36J) 20%
Stress relaxation DIN 52913
50 MPa, 16 h/300°C
Stress relaxation BS 7531
40 MPa, 16 h/300°C
Leachable chloride <40ppm
Graphite purity >98%
Gas leakage (DIN 3535/6) <1.0ml/min
Thickness increase after immersion in
oil JRM 903: 5 h/150°C
Density 1.0g/cm3
Standard insert: 316 0.1mm

Dimensions of the standard sheets

Sizes: 1000 x 1000mm , 1500 x 1500mm

Thickness: 0.8mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm

Function and durability

The performance and service life of KLINGER gaskets depend in large measure on proper storage and fitting, factors beyond the manufacture’s control. We can, however, vouch for the excellent quality of our products. With this in mind, please also observe our installation instructions.

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