In industrial sealing, the shift from traditional asbestos-based materials to advanced non-asbestos alternatives represents more than just compliance; it signifies a leap forward in safety, reliability, and environmental responsibility. For engineers, procurement specialists, and maintenance managers, selecting the right sealing solution is critical to ensure system integrity, prevent costly downtime, and protect personnel. Kaxite stands at the forefront of this evolution, engineering high-performance non-asbestos gaskets that deliver exceptional sealing under the most demanding conditions. Our products are meticulously designed to meet and exceed the rigorous standards of industries such as petrochemical, power generation, marine, and pharmaceutical processing.
Unlike their asbestos predecessors, modern non-asbestos gaskets combine safety with superior performance. They are fabricated from a sophisticated blend of high-quality materials, including aramid fibers, glass fibers, nitrile rubber (NBR), and other synthetic compounds, bonded with advanced elastomers. This composition eliminates the health hazards associated with asbestos while providing excellent resistance to temperature fluctuations, chemical exposure, and high-pressure environments. Kaxite's commitment to innovation ensures that every gasket offers consistent compressibility, recovery, and creep relaxation, guaranteeing a long-lasting, leak-free seal.
Kaxite offers a comprehensive portfolio of non-asbestos gasket materials, each engineered for specific service conditions. Below is a detailed breakdown of our primary product series.
| Kaxite Grade | Material Composition | Temperature Range | Pressure Range | Key Applications | Color Code |
|---|---|---|---|---|---|
| KA-NA 1500 | Aramid fibers, NBR binder | -40°C to +200°C (-40°F to +390°F) | Up to 150 Bar | General purpose, water, air, mild chemicals | Blue |
| KA-NA 3000 | Glass & Aramid fibers, SBR binder | -50°C to +300°C (-58°F to +570°F) | Up to 200 Bar | Hot oils, saturated steam, hydrocarbons | Orange |
| KA-NA 4000 HT | Specialty fibers, advanced polymer binder | -100°C to +400°C (-148°F to +750°F) | Up to 250 Bar | High-temperature steam, exhaust systems, heat transfer fluids | Silver-Grey |
| Gasket Type | Windings / Filler | Inner/Outer Ring | Pressure Class (ANSI) | Temperature Limit | Media Suitability |
|---|---|---|---|---|---|
| KA-SW 100 | 304 SS / KA-NA 3000 Filler | Carbon Steel | 150 to 2500 | Up to 500°C (932°F) | Aggressive chemicals, high-pressure steam, refinery streams |
| KA-SW 200 | 316 SS / Flexible Graphite Filler | 304 SS | 150 to 2500 | Up to 650°C (1200°F) in inert atm. | Extreme temperatures, strong acids, alkalis (excluding strong oxidizers) |
Understanding the technical data is crucial for proper gasket selection. The following parameters define the performance envelope of Kaxite's standard sheet materials.
What exactly are non-asbestos gaskets made from?
Non-asbestos gaskets are manufactured using safe, synthetic fibers as a direct replacement for asbestos. Common reinforcing fibers include aramid (e.g., Kevlar®), glass, carbon, and cellulose. These fibers are combined with binders such as Nitrile Rubber (NBR), Styrene Butadiene Rubber (SBR), or other specialty elastomers. The exact formulation, like those developed by Kaxite, is optimized to replicate or surpass the sealing properties of asbestos while being completely safe for handling and use.
Are non-asbestos gaskets as durable and effective as traditional asbestos gaskets?
Yes, modern high-quality non-asbestos gaskets are not only as effective but often superior. Advances in material science have produced compounds that offer excellent temperature resistance, chemical compatibility, and mechanical strength. For instance, Kaxite gaskets are engineered with specific grades for high-temperature steam or aggressive chemicals, providing reliable performance without the associated health risks. They also exhibit better consistency in compressibility and recovery, leading to more predictable and longer-lasting seals.
How do I select the correct non-asbestos gasket material for my application?
Selection depends on three primary factors: the fluid/media being sealed, the operating temperature, and the system pressure. First, consult the chemical resistance chart for the gasket material against your process media. Second, ensure the gasket's temperature rating covers both your operating and any potential upset conditions. Third, verify that the gasket's pressure rating is suitable. Always refer to the manufacturer's technical datasheets. Kaxite provides detailed selection guides and expert engineering support to help customers choose the optimal KA-NA grade for their specific service conditions.
What are the installation best practices for non-asbestos gaskets?
Proper installation is key to performance. Ensure flange surfaces are clean, undamaged, and aligned. Use a new gasket every time; never reuse a compressed gasket. Apply a suitable lubricant to bolts and nuts only—avoid getting it on the gasket faces. Follow a cross-pattern bolting sequence (star pattern) and torque in multiple incremental steps (e.g., 30%, 60%, 100% of final torque) to achieve even compression. Always adhere to the torque values recommended by the gasket manufacturer or the flange standard. Kaxite provides detailed installation instructions with its products.
Can Kaxite non-asbestos gaskets be used in food and pharmaceutical processing?
Yes, certain grades are specifically designed for such sensitive industries. Kaxite offers FDA-compliant and other relevant certification options for grades intended for use in food, beverage, and pharmaceutical applications. These grades use approved ingredients and are manufactured under controlled conditions to ensure purity and non-toxicity. It is essential to specify this requirement when ordering to receive the correct, certified material.
How does Kaxite ensure the quality and consistency of its gasket materials?
Kaxite implements a rigorous quality management system certified to ISO 9001. Our manufacturing process involves strict raw material inspection, controlled compounding, and continuous monitoring during calendering or molding. Every production batch undergoes comprehensive testing for critical properties like density, tensile strength, compressibility, recovery, and creep relaxation against internal and international standards (ASTM, DIN, ISO). This ensures that every sheet of Kaxite material delivers consistent, reliable performance.