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KLINGER® GRAPHITE LAMINATE PDM

The more highly compressed pure graphite gasket with two rough sheet metal inserts.

Basis

Glueless gasket material consisting of expanded graphite and two 0.1mm thick tanged stainless steel insert. The material is free from resins, impregnations or other organic compounds. Therefore it is free of eventual toxic risks. Stable physical properties over the whole temperature range.

Areas of application

KLINGER® Graphite Laminate PDM is suitable for high-pressure applications, hot water and steam at high temperatures up to 450°C.

KLINGER GRAPHITE LAMINATE PDM

Key features

  • Mechanically bonded tanged stainless steel inserts
  • Free of organic resins or toxic risks
  • Excellent chemical resistance
  • Excellent high temperature resistance

CERTIFICATES & APPROVALS

  • DIN-DVGW

Benefits

  • Stable physical properties over the whole temperature range
  • Very good tightness
  • Suitable for high pressure applications

Typical technical data for thickness 1.0, 1.5 and 2.0 mm

1.0 mm

1.5 mm

2.0 mm

Density of the graphite layer

DIN 28090-2

g/cm³

1.3

1.3

1.3

Purity of graphite1)

DIN 51903

%

≥ 99.0

≥ 99.0

≥ 99.0

Metallic reinforcement

Tanged metal
Thickness
Number of sheets

mm

1.4401
0.10
2

(oder 1.4404)
0.10
2

0.10
2

Compressibility ASTM F 36 A

%

15 – 25

15 – 25

15 – 25

Recovery ASTM F 36 A

%

35 – 45

35 – 45

35 – 45

Stress relaxation DIN 52913

16 h / 50 MPa / 300 °C

MPa

≥ 48

≥ 48

≥ 48

KLINGER cold/hot compression
50 MPa

Thickness decrease at 23 °C
Thickness decrease at 300 °C

%
%

20 – 28
1 – 3

20 – 28
1 – 3

20 – 28
1 – 3

Specific leakrate λ

DIN 28090-2

mg/s x m

< 0.08

< 0.10

< 0.10

Chloride content of graphite layer2)

DIN 28090-2

ppm

≤ 40

≤ 40

≤ 40

1) Nuclear quality with a purity of ≥99,8 available on request
2) Detailed specifications of the used graphite foils are found in our Graphite vademecum, which can be sent to you on request

Dimensions of the standard sheets

Sizes

1000 x 1000 mm, 2000 x 1000 mm, 1500 x 1500 mm

Thicknesses

1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm

Tolerances

Thickness ± 5%
Length ± 4 mm, Width ± 4 mm

Other thicknesses, sizes and inserts on request.

Function & Durability

The performance and service life of KLINGER gaskets depend to a large extent 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 take note of our installation manual.

KLINGER GRAPHITE LAMINATE PDM MATERIAL

Downloads

Below you can find more product-related Information.

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