Durlon 8900

Durlon 8900 is a premium compressed sheet gasket material engineered with high-strength fibres and graphite fillers bound with NBR nitrile. Durlon specifically designed this material for demanding, severe thermal service applications.

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Manufacturer Documentation

Our Quebec facility manufactures custom-cut flat gaskets to your exact specifications. VAMECA can also evaluate the supply of this part number or engineer a suitable replacement.

AT A GLANCE

Carbon & Blends

Product Family

Compressed Fibre

Material Composition

Aramid / Graphite with NBR

TECHNICAL SPECIFICATIONS

Material Specifications

Maximum temperature and pressure limits cannot be applied simultaneously.

TEMPERATURE

Min. -40 °C · Continuous 400 °C · Max. catalog 496 °C

PRESSURE

138 bar (catalogue maximum, verify according to P/T rating)

THICKNESSES

0.5 / 0.8 / 1 / 1.5 / 2 / 2.5 / 3 mm

Applications and Key Features

Manufacturer applications: saturated and superheated steam, water, hydrocarbons, oils, solvents, and moderate acidic or alkaline solutions. The manufacturer specifies a continuous service limit of 400°C, compared to a catalogue maximum rating of 496°C.

Published Testing and Approvals

Standards, Testing, and Certification References

Testing and Classification: ASTM F104, ASTM F36, and ASTM F38 (Durlon data sheet).

PART NUMBER ANALYSIS

To properly select or replace this material

Key Design Characteristics

The presence of graphite as a filler in a fibre-based sheet does not mean it qualifies as an expanded graphite gasket. The fibre matrix and NBR binder deliver a distinct construction and mechanical response.

Key Criteria for Selecting a Replacement

For steam services, verify operating pressure, temperature, and any system transients against the service sheet. Individual maximum ratings do not imply they can be applied simultaneously.

To compare constructions: TEADIT NA1100 and KLINGER top-graph 2000. Fibres, binders, and reinforcement options differ. Always verify the exact construction prior to any substitution.

Key Design Characteristics

Key Criteria for Selecting a Replacement

For steam services, verify operating pressure, temperature, and any system transients against the service sheet. Individual maximum ratings do not imply they can be applied simultaneously.

To compare constructions: TEADIT NA1100 and KLINGER top-graph 2000. Fibres, binders, and reinforcement options differ. Always verify the exact construction prior to any substitution.

REPLACEMENT TO BE EVALUATED

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KEY COMPARISON CRITERIA

The graphite-filled 8900 differs from Durlon 8300 carbon fibre sheets and flexible graphite sheets. Actual thermal conditions, bolt load, and binder behaviour must be carefully evaluated and compared.

Need this gasket, custom cutting, or a replacement?

Part Number: Durlon 8900

Please provide the part number, thickness, dimensions, quantity, and process fluid. We will review material availability for the specified grade, custom cutting at our Quebec facility, or an engineered alternative tailored to your assembly.

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View official documentation

The manufacturer's latest datasheets, certifications, and P/T curves must be reviewed prior to ordering or substitution.

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RELATED PART NUMBERS

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Carbon- or graphite-filled, NBR-bound gasket sheets engineered for high-temperature applications. Graphite content and reinforcing fibres vary by grade. Equivalent material constructions include: TEADIT NA1100 (Carbon & blends), top-graph 2000 (Graphite with synthetic fibres), and Garlock High-Temp 9900 (Graphite fibres with NBR binder).

REFERENCE SHEET

KLINGER