Klinger top-graph 2000 Gasket Sheet

Name: Klinger top-graph 2000 Gasket Sheet – Datasheet & Quote
Brand: Klinger
SKU: top-graph 2000

Fibre-reinforced sheet with graphite for steam and demanding service

KLINGER top-graph 2000 joins the benefits of a reinforced fibre sheet with those of flexible graphite. It is made from graphite and synthetic fibres bonded with NBR, and Klinger calls it the really flexible graphite sealing material that handles reliably, carries high loads and resists embrittlement.

Klinger names steam and other demanding applications as the best fit. The features listed are graphite used as filler and a high level of load-bearing capacity; the benefits are improved flexibility and the ability to resist high surface pressure at elevated temperatures. The black sheet is supplied in 0.5 to 3.0 mm thickness.

Technical specifications

Parameter	Specification
Manufacturer / model	Klinger (Rich. Klinger Dichtungstechnik), KLINGER top-graph 2000
Basis composition	Graphite and synthetic fibres bonded with NBR
Colour	Black
Sheet size	1000 x 1500 mm, 2000 x 1500 mm
Thickness	0.5, 1.0, 1.5, 2.0, 3.0 mm
Tolerances	Thickness per DIN 28091-1; length and width plus or minus 50 mm
Certificates and approvals as printed	Oxygen-tested, DIN-DVGW, TA-Luft (Clean air)
Industries listed	General industry, chemical, oil and gas, energy, infrastructure, pulp and paper, marine, automotive, food and beverage
Compressibility, ASTM F 36 J (2.0 mm)	10 %
Recovery, ASTM F 36 J	60 %
Stress relaxation, DIN 52913, 50 MPa, 16 h	30 MPa at 300 °C (50 MPa, 16 h)
Stress relaxation, BS 7531, 40 MPa, 16 h at 300 °C	27 MPa
Klinger cold/hot compression, 50 MPa, thickness decrease	10 % at 23 °C; 10 % at 300 °C
Tightness, DIN 28090-2	0.05 mg/(s x m)
Specific leak rate, VDI 2440	1.84E-05 mbar x l/(s x m)
Thickness increase after immersion, ASTM F 146	5 % (oil IRM 903, 5 h at 150 °C); 7 % (fuel B, 5 h at 23 °C)
Density	1.8 g/cm3
Thermal conductivity	0.69 W/mK (average specific volume resistance 6.7x10E3 ohm cm)
Classification, BS 7531:2006	Grade AX
ASME code sealing factors, 2.0 mm, tightness class 0.1 mg/(s x m)	y 20 MPa, m 4.2
Chemical resistance chart in datasheet	A (small or no attack) for paraffinic hydrocarbon, motor oil, alcohol, water, diluted acid and diluted base; B (weak to moderate attack) for motor fuel and mineral lubricants; C (strong attack) for aromates, chlorinated hydrocarbon fluids, ketone and ester

All values are typical values for a 2.0 mm sheet as printed in the Klinger datasheet; other thicknesses can differ.

Handling and selection notes for top-graph 2000

The datasheet shows what the graphite filler does. Thickness loss under 50 MPa is 10 % both at 23 °C and at 300 °C, the most constant behaviour of the fibre sheets in this group, and recovery is 60 %. Thermal conductivity of 0.69 W/mK is the highest printed, and the average specific volume resistance of 6.7x10E3 ohm cm confirms that the sheet conducts electricity.

The m factor of 4.2 is the highest of the group, so the residual gasket stress needed in a code calculation is also higher; the y factor is 20 MPa. Approvals printed are oxygen-tested, DIN-DVGW and TA-Luft. There are no WRAS, fire-safe or FDA entries on this datasheet.

Related KLINGER gasket sheets

Other Klinger sheets that compete with top-graph 2000 for steam duty are listed here.

Model	Basis	Colour	Positioning printed by Klinger
KLINGERSIL C-4500	Carbon fibres, heat-resistant additives, NBR	Black	Alkaline media and superheated steam; chemical industry
KLINGERSIL C-4430	Synthetic fibres, NBR	White or green	Outstanding stress relaxation; hot water and higher-temperature steam
KLINGER Quantum	Fibre and filler compound, HNBR	White	Flexibility at high temperature; FDA conformity
KLINGERSIL C-4400	Aramid fibres, NBR	Green	Universal grade; very good resistance to refrigerants

Documents, ordering details and quotation

Tell us the pressure class and temperature, and whether the flange has a smooth or serrated face. To quote correctly we need the medium and concentration, working and test pressure, temperature, flange standard and facing, bolting, thickness and whether you want a whole sheet or gaskets cut to size. Klinger states that its values are typical and that site conditions vary, so confirm the grade with your own engineering or with Klinger before ordering for a critical duty. See also our wider range of gaskets, seals and pipe fittings.

Fibre, graphite and PTFE gasket sheets

The Klinger sheets listed here include the aramid fibre KLINGERSIL grades, graphite based top-graph material and the PTFE sheets of the top-chem family. Each official datasheet gives the thickness range, pressure and temperature limits, gasket factors, chemical resistance and the approvals printed by the manufacturer.

Seven Star LLC links the manufacturer document on every product page, so buyers can verify the figures and approvals themselves before they send an inquiry.

Choosing the right sheet

The correct grade depends on the medium, temperature, pressure, flange design and bolt load. Send these details with your request for quotation and we compare them with the published Klinger data before we quote, so the sheet and thickness suit the joint. Sheets can be quoted as whole sheets or as gaskets cut to size.

Frequently Asked Questions