Flexible graphite gaskets designed for reliable sealing of industrial flanged connections, particularly in applications requiring resistance to elevated temperatures and demanding process conditions. Available as graphite sheet cut gaskets and in application-specific configurations.
Graphite gaskets are manufactured from flexible graphite sheet and are used to seal flanged pipe connections, equipment nozzles and other industrial joints where temperature resistance and conformability are important.
Flexible graphite provides good compressibility and can conform to minor surface irregularities in the mating flange. It is widely used in industrial piping, petrochemical, power generation and process applications.
Graphite gasket material can be supplied in different densities, thicknesses and grades depending on the operating conditions and application requirements.
Rhevon can source graphite sheet and cut gaskets according to required dimensions, thickness, flange facing, material specification and quantity.
Graphite sheet and precision-cut gaskets for industrial flanged connections.
Graphite gaskets can be supplied in different cut patterns, thicknesses and material constructions according to the flange arrangement and service requirements.
Ring-type graphite gaskets are cut to the required inside and outside diameters and are commonly used for raised face flanged connections.
Full-face graphite gaskets extend across the complete flange face and include the required bolt-hole pattern. They are generally used with flat-face flange arrangements.
Graphite sheet can incorporate reinforcement such as metallic foil or mesh to improve handling and mechanical stability for selected applications.
Graphite gasket material can be selected according to temperature, pressure, process media, oxidation conditions and mechanical requirements.
| Graphite Type | Typical Description | Typical Application |
|---|---|---|
| Flexible Graphite | Expanded Graphite Sheet | General Industrial / High-Temperature Service |
| High-Purity Graphite | High Carbon / Low Impurity Graphite | Demanding Process Applications |
| Reinforced Graphite | Graphite with Metallic Reinforcement | Improved Mechanical Stability |
| Graphite with Metal Foil | Graphite / Foil Composite | Application-Specific Service |
Flat-ring and full-face gasket dimensions for Class 150 and Class 300 flanges.
Swipe horizontally to view every column.
| NPS | dboth(mm) | Dr150(mm) | Dff150(mm) | Dr300(mm) | Dff300(mm) |
|---|---|---|---|---|---|
| ½ | 21.34 | 47.75 | 88.90 | 53.85 | 95.25 |
| ¾ | 26.92 | 57.15 | 98.55 | 66.55 | 117.35 |
| 1 | 33.27 | 66.55 | 107.95 | 73.15 | 123.95 |
| 1 ¼ | 42.16 | 76.20 | 117.60 | 82.55 | 133.35 |
| 1 ½ | 48.51 | 85.85 | 127.00 | 95.25 | 155.45 |
| 2 | 60.45 | 104.65 | 152.40 | 111.25 | 165.10 |
| 2 ½ | 73.15 | 123.95 | 177.80 | 130.05 | 190.50 |
| 3 | 88.90 | 136.65 | 190.50 | 149.35 | 209.55 |
| 3 ½ | 101.60 | 162.05 | 215.90 | 162.05 | 228.60 |
| 4 | 114.30 | 174.75 | 228.60 | 177.80 | 254.00 |
| 5 | 141.22 | 196.85 | 254.00 | 212.85 | 279.40 |
| 6 | 168.15 | 222.25 | 279.40 | 247.65 | 317.50 |
| 8 | 218.95 | 279.40 | 342.90 | 304.80 | 381.00 |
Swipe horizontally to view every column.
| NPS | P150(mm) | n 150 | h150(mm) | P300(mm) | n 300 | h300(mm) |
|---|---|---|---|---|---|---|
| ½ | 60.45 | 4 | 16.00 | 66.55 | 4 | 16.00 |
| ¾ | 69.85 | 4 | 16.00 | 82.55 | 4 | 19.05 |
| 1 | 79.50 | 4 | 16.00 | 88.90 | 4 | 19.05 |
| 1 ¼ | 88.90 | 4 | 16.00 | 98.55 | 4 | 19.05 |
| 1 ½ | 98.55 | 4 | 16.00 | 114.30 | 4 | 22.35 |
| 2 | 120.65 | 4 | 19.05 | 127.00 | 8 | 19.05 |
| 2 ½ | 139.70 | 4 | 19.05 | 149.35 | 8 | 22.35 |
| 3 | 152.40 | 4 | 19.05 | 168.15 | 8 | 22.35 |
| 3 ½ | 177.80 | 8 | 19.05 | 184.15 | 8 | 25.40 |
| 4 | 190.50 | 8 | 19.05 | 200.15 | 8 | 25.40 |
| 5 | 215.90 | 8 | 22.35 | 234.95 | 8 | 25.40 |
| 6 | 241.30 | 8 | 22.35 | 269.75 | 12 | 25.40 |
| 8 | 298.45 | 8 | 22.35 | 330.20 | 12 | 28.45 |
Flat-ring gaskets have no bolt holes. Order sheet thickness explicitly.
Confirm the final cutting dimensions against the mating flange and supplier drawing.
Graphite gasket requirements can be reviewed against the specified material grade, graphite density, dimensions, thickness, flange standard, facing and service requirements before supply.
Common questions about graphite gasket materials, configurations, temperature service and flange compatibility.
A graphite gasket is a sealing component manufactured primarily from flexible graphite sheet. It is commonly used for industrial flanged connections where good conformability and resistance to elevated temperatures are required.
Flexible graphite retains useful sealing characteristics across a broad temperature range and can accommodate flange surface irregularities. Actual temperature limits depend on the graphite grade, atmosphere, pressure and specific application.
Flexible graphite gaskets consist primarily of expanded graphite material, while reinforced graphite incorporates a metallic foil, mesh or other reinforcement to improve mechanical stability and handling for selected applications.
Provide the NPS, pressure class, flange facing, gasket dimensions or applicable flange standard, required thickness, graphite grade, service media, operating temperature and quantity. A drawing or existing gasket specification can also be provided for confirmation.
Yes. Graphite gaskets can be included in a mixed piping requirement together with compatible flanges, studs, nuts, washers and other piping components, allowing the complete flange-joint requirement to be sourced together.
Share the NPS, pressure class, flange facing, graphite grade, dimensions, thickness, quantity and applicable specification. Mixed piping component requirements are also welcome.
