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Kaxite Company

About Us

Ningbo Kaxite Sealing Materials Co., Ltd.

Founded in 1995, Kaxite is a leading spiral wound gasket manufacturer certified under ISO 9001:2025, API 601, and ASME B16.20. We supply inner/outer ring SWGs, RTJ gaskets, Kammprofile, and PTFE packings to over 60 countries, including ExxonMobil, Saudi Aramco projects, and European valve manufacturers.

Our in-house R&D and CNC machining ensure ±0.1mm precision and rapid 7-day delivery for non-standard sizes.

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Why Choose Kaxite

30+ years of engineering excellence – trusted by global energy & chemical leaders

Quality Control 100% leak-tested before shipment | ≤0.01% defect rate in 2025
OEM & ODM 30+ years supplying Europe, USA, Middle East | 500+ custom molds available
Competitive Price Direct factory pricing – save 15–30% vs. European brands | No minimum order for samples
Prompt Feedback Quote in ≤2 hours | 24/7 technical support | Order tracking updates
✓ ISO 9001:2025 ✓ API 601 ✓ ASME B16.20 ✓ TUV Tested

Frequently Asked Questions About Spiral Wound Gaskets

Q: What materials can you use for spiral wound gasket windings?
A: We provide SS304, SS316, SS316L, Monel, Inconel, Titanium for windings; fillers include graphite, PTFE, ceramic fiber, and mica. All comply with ASME B16.20.
Q: Can you customize spiral wound gaskets with both inner and outer rings?
A: Yes. Our ASME B16.20 SWGs are available with inner ring (for pressure resistance) and outer ring (centering). We also produce non-standard dimensions for special flanges.
Q: What is the minimum order quantity for API 601 gaskets?
A: MOQ is only 10 pcs for standard sizes, and we offer sample service (free for existing customers).

News

  • What are the advantages of using semi-metallic gaskets?
    2026-02-11
    What are the advantages of using semi-metallic gaskets?

    Semi-metallic gaskets offer enhanced sealing performance, durability, and resistance to extreme temperatures and pressures.

  • What are the main types of metallic gaskets available?
    2026-02-10
    What are the main types of metallic gaskets available?

    Metallic gaskets are crucial sealing components used in high-pressure, high-temperature, and corrosive environments where non-metallic gaskets fail. They function by deforming to fill imperfections between flange surfaces, creating a leak-tight seal. This article explores the main types of metallic gaskets, such as ring-type joints (RTJs), spiral-wound gaskets, and metal jacketed gaskets, detailing their distinct designs, materials, and typical industrial applications. Understanding these variations is key to selecting the optimal gasket for specific operating conditions and ensuring system safety and integrity.

  • What are the main types of non-metallic gaskets available?
    2026-02-09
    What are the main types of non-metallic gaskets available?

    This article provides an overview of the primary categories of non-metallic gaskets.

  • Which material is best for ring joint gaskets in high pressure applications?
    2026-07-03
    Which material is best for ring joint gaskets in high pressure applications?

    Selecting the optimal material for ring joint gaskets is vital in high-pressure systems, where reliability and seal integrity are paramount. This article examines key candidates such as soft iron, low-carbon steel, stainless steel, and nickel alloys, comparing their hardness, corrosion resistance, and temperature tolerance to determine the best fit for demanding applications.

  • What is a metal jacketed gasket?
    2026-06-25
    What is a metal jacketed gasket?

    A metal jacketed gasket is a sealing gasket that consists of a soft filler material completely enclosed in a metallic outer shell, designed to handle high temperatures and pressures in flanged joints, heat exchangers, and similar industrial applications.

  • Are PTFE gaskets suitable for food grade applications?
    2026-06-17
    Are PTFE gaskets suitable for food grade applications?

    A concise overview exploring the suitability of PTFE gaskets for food-grade applications, examining their material properties, regulatory compliance, and performance in hygienic environments.

  • What are safe alternatives to asbestos gaskets?
    2026-06-16
    What are safe alternatives to asbestos gaskets?

    Asbestos gaskets pose serious health risks, but several safe alternatives exist. Materials like graphite, PTFE, and compressed non-asbestos fiber provide reliable sealing without the dangers of asbestos exposure.

  • What is the maximum pressure rating for non-asbestos gaskets?
    2026-06-09
    What is the maximum pressure rating for non-asbestos gaskets?

    Non-asbestos gaskets can withstand varying maximum pressure ratings depending on material composition and design, typically ranging up to 1500 psi or more for high-performance compressed fiber sheets, while spiral wound and reinforced types handle even higher pressures.

  • How does self-adhesive gasket tape work?
    2026-06-05
    How does self-adhesive gasket tape work?

    Self-adhesive gasket tape works by using a compressible foam strip coated with a pressure-sensitive adhesive. When applied to a clean surface, the adhesive bonds instantly, while the foam conforms to irregularities, filling gaps to block air, moisture, dust, and noise.

  • Can rubber gaskets be reused
    2026-06-01
    Can rubber gaskets be reused

    Rubber gaskets can sometimes be reused if they’re still pliable and free of cracks or deformation, but their sealing ability often degrades after compression. Factors like material type, age, heat exposure, and chemical contact determine whether reuse is safe or risks leaks.

  • What types of PTFE packing are available on the market?
    2026-05-29
    What types of PTFE packing are available on the market?

    Discover the different types of PTFE packing available on the market, from braided and die-molded forms to filled varieties, and learn how each is used in industrial sealing applications.

  • What are the different types of graphite packing?
    2026-05-28
    What are the different types of graphite packing?

    Learn about the various types of graphite packing, including flexible graphite, graphite-impregnated, and carbon core options, each suited for different sealing applications.

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