No.67,Xinhua Road, Xiaolin Town,
Cixi City,Zhejiang,China 315300
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+86-13566064802
No.67,Xinhua Road, Xiaolin Town,
Call Us
Product Category
Graphite sealing gaskets are designed for high temperature and pressure where chemical resistance and reliability matter. As an in-house precision manufacturer, we produce pure expanded and reinforced constructions for standard and non-standard flanges. Custom parts are built from drawings and specified media. These gaskets perform in aggressive environments with thermal cycling, helping prevent leakage, blowout, and premature failure.
Flexible graphite offers excellent thermal stability, conformability, and low creep. It maintains sealing under bolt load variation and fluctuating conditions.
Tang or flat SS316/SS304 inserts increase mechanical strength, dimensional stability, and blowout resistance. Suitable for raised face flanges in pipelines and process equipment subject to cycling and thermal shock.
For severe duty, Inconel inserts add resilience against oxidation and thermal degradation. Preferred for extreme temperatures and critical services where stainless steel may be insufficient.
Inhibitors mitigate mass loss in hot oxidizing atmospheres. This extends service life and supports sealing integrity at elevated temperatures.
Custom sizes follow EN 1514-1 and ASME B16.21 dimensions. Tight tolerances and consistent density provide predictable compression and easy interchangeability.
Graphite materials handle elevated temperatures and pressure fluctuations with minimal relaxation. Reinforced versions support higher bolt loads and reduce blowout risk.
Broad compatibility includes hydrocarbons, steam, and many acids and alkalis. Match reinforcement and oxidation resistance to media and atmosphere for reliable sealing.
The compressible yet resilient structure supports low leakage. Stable performance under thermal cycling reduces unplanned maintenance.
Typical thicknesses are 0.5–3.0 mm; wider options are available for sheet stock. Density and grade, including oxidation‑inhibited variants, are chosen to meet target performance.
Standard sizes follow EN 1514-1 and ASME B16.21. Non-standard profiles are produced from DWG/SolidWorks files using CNC or knife-cutting for complex geometries.
Used on raised face flanges, valves, and equipment in upstream and downstream operations. They resist temperature swings and hydrocarbon exposure.
Proven in steam, solvents, and corrosive media. Stability is maintained during start-up, shutdown, and continuous service.
A dependable option for heat exchangers and process heaters where low creep and recovery matter.
From CAD to finished parts, we produce non-standard gasket profiles and mixed-material stacks to specification.
Consistent logo and packaging options are available for repeat orders.
Flexible capacity supports expedited production for urgent requirements without compromising quality.
Balanced strength, corrosion resistance, and cost-effectiveness for general high-pressure service.
Higher safety margins in extreme thermal and oxidizing conditions.
Inhibitor formulations extend service life in hot processes exposed to oxygen.
Dimensional and material controls deliver consistent fit and performance across flange classes.
Traceable graphite grades and inserts with in-process checks on density, thickness, and cut accuracy.
We advise on grade, reinforcement, and thickness based on media, temperature, pressure, and flange finish to reduce leakage and blowout risk.
We balance construction and materials for performance-to-cost and lifecycle value.
Store flat and dry. Handle reinforced parts carefully. Clean flange faces and verify surface finish before assembly.
Apply uniform crisscross bolt loading. Retorque after thermal cycles as needed. Select thickness to achieve target compressibility.
Graphite excels at high temperatures, steam, and oxidizing service. PTFE suits strong chemical resistance at lower temperatures and non-oxidizing media.
Graphite shows low creep and good recovery; reinforcement further stabilizes sealing. PTFE can creep under sustained load.
Q: What is the maximum temperature for a graphite gasket?
A: Limits depend on media and atmosphere. Reinforced and oxidation‑inhibited options extend safe ranges in oxidizing service.
Q: Is graphite compatible with strong acids?
A: It has broad compatibility. Confirm against specific concentrations and temperatures for your process.
Q: Do I need reinforcement for high pressure?
A: Inserts improve blowout resistance and dimensional stability under higher bolt loads and cycling. They are often advised for elevated pressure classes.
Q: Which standard sizes are available?
A: EN 1514-1 and ASME B16.21 sizes are available, along with custom shapes from drawings.
Established in 2004, we offer in-house precision manufacturing of heat-resistant, reinforced options to EN 1514-1 and ASME B16.21, with stainless steel or Inconel inserts. CAD-to-product capability, drawing-based customization, logo services, and rapid response to urgent orders support fit-for-purpose sealing in demanding environments.
Email: jeff@xsseal.com | Phone/WhatsApp: +86-13566064802
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