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In industrial sealing, the shift towards safer, more reliable materials has made Non-asbestos Gaskets the standard for critical applications. As a premier manufacturer, Kaxite Sealing specializes in engineering advanced non-asbestos gasket materials that deliver exceptional performance without the health and environmental risks associated with traditional asbestos. Our products are designed to meet the rigorous demands of modern industry, providing superior sealing integrity under extreme pressure, temperature, and chemical exposure.
Kaxite Sealing’s commitment to innovation ensures that our non-asbestos gaskets are not just alternatives but superior upgrades. We utilize a blend of high-quality aramid fibers, glass fibers, nitrile rubber, and other proprietary compounds to create materials that offer excellent compressibility, recovery, and creep resistance. This focus on material science allows us to cater to a vast array of industries, including oil & gas, chemical processing, power generation, and marine engineering.
Understanding the technical specifications is crucial for selecting the correct gasket. Below are the core parameters that define Kaxite Sealing's Non-asbestos Gaskets.
Our non-asbestos materials are composed of a carefully calibrated mix of synthetic fibers and elastomers:
| Property | Test Standard | Typical Value Range | Significance |
|---|---|---|---|
| Density | ASTM F1315 | 1.6 - 2.1 g/cm³ | Indicates material compactness and quality consistency. |
| Compressibility | ASTM F36 | 7% - 15% | Ability to deform under load to fill surface imperfections. |
| Recovery | ASTM F36 | 45% - 60% | Ability to regain thickness after load release, crucial for long-term seal. |
| Creep Relaxation | ASTM F38 | < 25% | Resistance to load loss over time, preventing bolt loosening. |
| Tensile Strength | ASTM F152 | 8 - 14 MPa | Measures the material's mechanical strength and handling durability. |
| Temperature Range | Operational | -40°C to +400°C (-40°F to +752°F)* | Wide operational range suitable for most industrial processes. |
| pH Range | Chemical Resistance | 1 - 14 | Excellent resistance to both strong acids and strong alkalis. |
| Pressure Rating | PN / Class | PN 40 / Class 300 | Suitable for high-pressure flanged connections. |
*Maximum temperature is dependent on specific media and pressure. Consult Kaxite Sealing datasheets for application-specific guidance.
Kaxite Sealing Non-asbestos Gaskets are supplied in various forms to suit different fabrication and installation needs:
Our materials are tested and certified to meet or exceed major international standards, including:
- ASTM F1315 (Standard Specification for Non-Asbestos Fiber Sheets)
- DIN 28090-1
- JIS T 8061
- TA-Luft (for emission control)
What are Non-asbestos Gaskets made from?
Non-asbestos gaskets are manufactured using a combination of synthetic organic and inorganic fibers, such as aramid (e.g., Kevlar), glass, carbon, or cellulose fibers, bound together with elastomers like Nitrile Rubber (NBR), Styrene-Butadiene Rubber (SBR), or acrylic. At Kaxite Sealing, we formulate our materials using specific fiber blends and high-performance rubber binders to optimize properties like temperature resistance, fluid compatibility, and sealing force retention for targeted applications.
Why should I choose a Non-asbestos Gasket over other types?
Choosing a non-asbestos gasket eliminates the serious health hazards of asbestos fiber inhalation during gasket handling, installation, or removal. From a performance perspective, modern non-asbestos materials from reputable manufacturers like Kaxite Sealing offer more consistent and engineered properties. They provide predictable compression and recovery behavior, excellent chemical resistance across a broad pH range, and can be formulated to outperform traditional compressed asbestos fiber (CAF) gaskets in many applications, particularly where creep relaxation is a concern.
Can Kaxite Sealing Non-asbestos Gaskets handle high-temperature applications?
Yes. Our high-grade non-asbestos materials are engineered to perform continuously at temperatures up to 400°C (752°F), with short-term peaks even higher depending on the specific grade. The key is selecting the correct grade with the appropriate fiber and binder combination. For instance, grades with a high content of aramid and glass fibers with a special heat-resistant binder are designed explicitly for high-temperature steam, hot oil, and exhaust services.
How do I select the right thickness and grade for my application?
Selection depends on several factors: flange surface condition, bolt load, internal pressure, temperature, and the media being sealed. As a general rule, lower pressure and rougher flange surfaces may benefit from a thicker, more compressible gasket. For high-pressure, smooth-faced flanges, a thinner, denser grade is often preferable. Kaxite Sealing provides detailed technical datasheets and application guides for our entire product range. Our engineering support team can also assist in selecting the optimal grade (e.g., KX-NAF 1000 for general chemical service, KX-NAF 2000 for high-temperature/pressure) and thickness for your specific operating conditions.
Are these gaskets suitable for all chemicals and media?
While Kaxite Sealing Non-asbestos Gaskets exhibit outstanding resistance to a vast array of chemicals, including acids, alkalis, solvents, oils, and gases, no single gasket material is universal. Resistance depends on the elastomer binder. Our standard NBR-bound materials are excellent for hydrocarbons, oils, and water. For specific aggressive chemicals like strong oxidizing acids or certain polar solvents, we offer specialty grades with different polymer binders like FKM (Viton) or PTFE. Always consult our chemical resistance chart for the specific media in your process.
How do I ensure a proper seal when installing a Non-asbestos Gasket?
Proper installation is critical. Ensure flange faces are clean, undamaged, and aligned. The gasket must be centered on the flange. Use a calibrated torque wrench and follow a cross-bolting pattern in multiple incremental steps to achieve the recommended bolt stress. This ensures even compression of the gasket, allowing it to flow and fill micro-imperfections without being over-compressed, which can lead to extrusion or creep relaxation failure. Always refer to the installation instructions provided by Kaxite Sealing or the applicable equipment standard (e.g., ASME PCC-1).
What industries commonly use Kaxite Sealing Non-asbestos Gaskets?
Our gaskets are extensively used across industries where safety, reliability, and regulatory compliance are paramount. Key sectors include Oil & Gas (pipelines, refineries, LNG), Chemical & Petrochemical Processing, Pharmaceutical, Power Generation (fossil, nuclear, geothermal), Shipbuilding & Marine, Pulp & Paper, and Water Treatment. Their versatility and certification to international standards make them a globally accepted sealing solution.
Does Kaxite Sealing offer custom shapes and sizes?
Absolutely. In addition to standard sheets, Kaxite Sealing operates state-of-the-art cutting facilities capable of producing precision custom gaskets. We utilize CNC cutting, laser cutting, and waterjet cutting technologies to manufacture gaskets from complex CAD drawings, ensuring a perfect fit for unique flange designs, heat exchangers, pumps, and valves, thereby reducing on-site fabrication time and potential errors.