
Product
Graphite Gaskets
Flexible graphite gaskets provide reliable sealing under high temperatures and fluctuating pressure.
Technical Specifications
| Product Type | Gaskets |
|---|---|
| Material | Flexible expanded graphite |
| Reinforcement | None, SS304 or SS316 stainless steel |
| Temperature | −200°C to +450°C |
| Customization | Gauge gaskets, ring gaskets and custom gaskets |
- Standard and custom specifications are available.
- Drawing and sample-based customization is supported.
Gaskets & Accessories
Product Description
Kunyo graphite gaskets are manufactured from flexible expanded graphite for sealing applications involving elevated temperatures, steam, oils, fuels and many industrial chemicals. The material is compressible and conforms closely to minor irregularities in the sealing surface, helping produce an effective seal under moderate clamping loads.
Compared with many compressed-fiber materials, flexible graphite has excellent thermal stability and low creep relaxation. It maintains sealing performance through repeated heating and cooling cycles and is therefore suitable for level gauges, boilers, valves, pumps, pipe flanges, heat exchangers and other industrial equipment.
Graphite Gauge Gaskets: Rectangular or obround gaskets designed for reflex and transparent level gauge glasses.
Graphite Ring Gaskets: Circular or annular gaskets for round sight glasses, oil-level indicators, fittings and flange connections.

The available product range includes:
Die-Formed Graphite Rings: Molded graphite sealing rings for valves, pumps and specialized equipment.
Reinforced Graphite Gaskets: Flexible graphite combined with smooth or tanged stainless-steel inserts for improved pressure resistance and handling strength.
Custom Graphite Gaskets: Manufactured according to drawings, samples or specified inside and outside dimensions.
Sizes
The following standard sizes are available for graphite gauge gaskets used with reflex and transparent gauge glass. Custom shapes and dimensions are available upon request.
Graphite Gauge Gasket Sizes
| Type A | Type A | Type A | Type A | Type A | Type A | Type A | Type A | Type A | |
|---|---|---|---|---|---|---|---|---|---|
| Product Code | Product Code | Length L (mm) | Length L (mm) | Width B (mm) | Width B (mm) | Thickness S (mm) | Thickness S (mm) | Opening Length C (mm) | |
| GA00 | GA00 | 95 | 95 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 79 | |
| GA01 | GA01 | 115 | 115 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 99 | |
| GA02 | GA02 | 140 | 140 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 124 | |
| GA03 | GA03 | 165 | 165 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 149 | |
| GA04 | GA04 | 190 | 190 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 174 | |
| GA05 | GA05 | 220 | 220 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 204 | |
| GA06 | GA06 | 250 | 250 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 234 | |
| GA07 | GA07 | 280 | 280 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 264 | |
| GA08 | GA08 | 320 | 320 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 304 | |
| GA09 | GA09 | 340 | 340 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 324 | |
| GA10 | GA10 | 370 | 370 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 354 | |
| GA11 | GA11 | 400 | 400 | 30 | 30 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 384 | |
| Type B | Type B | Type B | Type B | Type B | Type B | Type B | Type B | Type B | |
| Product Code | Product Code | Length L (mm) | Length L (mm) | Width B (mm) | Width B (mm) | Thickness S (mm) | Thickness S (mm) | Opening Length C (mm) | |
| GB00 | 95 | 95 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 75 | 75 | 75 |
| GB01 | 115 | 115 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 95 | 95 | 95 |
| GB02 | 140 | 140 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 120 | 120 | 120 |
| GB03 | 165 | 165 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 145 | 145 | 145 |
| GB04 | 190 | 190 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 170 | 170 | 170 |
| GB05 | 220 | 220 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 200 | 200 | 200 |
| GB06 | 250 | 250 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 230 | 230 | 230 |
| GB07 | 280 | 280 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 260 | 260 | 260 |
| GB08 | 320 | 320 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 300 | 300 | 300 |
| GB09 | 340 | 340 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 320 | 320 | 320 |
| GB10 | 370 | 370 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 350 | 350 | 350 |
| GB11 | 400 | 400 | 34 | 34 | 1.0 / 1.5 / 2.0 | 1.0 / 1.5 / 2.0 | 380 | 380 | 380 |
CUSTOM MANUFACTURING
Need a Custom Size or Specification?
Send your drawing, sample, dimensions, material requirements, operating temperature, pressure and process medium. We will review the application and confirm the suitable product specification before production.
Standard products and OEM/ODM solutions available.
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- Product name or drawing/sample
- Required dimensions and quantity
- Material or applicable standard
- Operating temperature and pressure
- Process medium and installation details
Inquire About: Graphite Gaskets
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