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Klinger® Gaskets > Gasket materials / PTFE Products > KLINGER-top-graph > KLINGER-top-graph-2000



  Gasket materials / PTFE Products
KLINGER-top-graph-2000
 
The truly flexible graphite sealing material that is easy to handle and cut.
It combines "high load bearing capacity" with high sealability.
KLINGERtop-graph-2000 is ideally suited for use with steam up to 300 °C
and many high temperature applications up to 500 °C.
 
Basis
Sealing material, based on graphite and synthetic fibres. Manufactured using a revolutionary process which provides the graphite gaskets with totally new, previously unachievable properties.

Properties
The material impresses with its easy handling and cutting combined with steam capability too 300'C It has a high load bearing capacity combined with high sealability.
The material is suitable for use with steam up to 300°C. In many other areas of application, temperatures of over 500°C are possible.
KLINGERtop-graph-2000 combines the advantages of fibrereinforced gaskets preferred by the experts with the key features of truly flexible graphite.
 
The many and varied demands made on gaskets
The successful operation of a gasket depends upon a multiplicity of factors. Many who use static gaskets believe that the values quoted for maximum admissible temperature and maximum operating pressure are inherent properties or characteristics of gaskets and gasket materials.
Unfortunately, this is not the case. The maximum temperatures and pressures at which gaskets may be used are influenced by a large number of factors.
Therefore a definite statement of these values for gasket material is not possible.
 
So why does Klinger provide pT diagrams?
For the reasons given the pT diagram is not infallible: it serves as a rough guide for the end user who often has only the operating temperatures and pressures to work with.
Additional stresses such as greatly fluctuating load may significantly affect whether a gasket is suitable for the application. Resistance to media must be taken into account in every case.
 
The fields of decision
(1) If your operating temperatures
and pressures fall within this field,
a technical examination is normally
unnecessary.
(2) If your operating temperatures
and pressures are within this field,
a technical examination is
recommended.
(3) If your operating temperatures
and pressures are within this “open“
field, a technical examination is
always necessary.
 
Klinger cold/hot compression
With this test method developed by Klinger you can evaluate the cold/hot compression of a gasket in cold and hot condition.
Unlike the method acc. to DIN 52913 and BS 7531, the surface load is kept constant during the complete test so that the gasket is exposed to much tougher conditions.
The thickness decrease at an ambient temperature of 23°C and at heating up to 300°C is measured.
The indicated thickness decrease at 300°C refers to the thickness obtained after loading at 23°C.
 
Typical values for 1.5 mm thickness KLINGERtop-graph-2000
Compressibility ASTM F 36 A % 10
Recovery ASTM F 36 A min % 60
Stress relaxation DIN 52913 50 MPa, 16 h/300°C MPa 32
Klinger cold/hot compression 50 MPa thickness decrease ambient % 10
thickness decrease hot 300°C % 10
Immersion oil JRM 903: 5h/150°C thickness change % 5
weight change % 10
Immersion fuel B: 5h/23°C thickness change % 7
weight change % 10
Immersion water: 5h/100°C thickness change % 5
weight change % 5
Soluble cloride content chlorides (soluble) ppm <50
Tightness according to DIN 3535/6 ml/min 0,5
Density g/cm3 1,75
Thickness mm 1,5
 
The dimensions of the standard sheets
Sizes:
1500 mm x 2000mm
Thicknesses:
1.5mm, 3.0mm, other sheet sizes / thicknesses on request.
Tolerances:
thickness ± 10%, lenght ± 50 mm, width ± 50 mm
 
Surfaces
The standard surface finish of the material is such that the surface has an extremely low adhesion.
 
Function and durability
The performance and life of KLINGER gaskets depend in large measure on proper storage and installation factors beyond the manufacturer’s control. We can, however, vouch for the excellent quality of our products.
 
Tests and approvals BS 7531 grade X.
DIN-DVGW-permit no. NG-5123AU0381.