No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China 0086-574-87527771 [email protected]
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Pure PTFE Packing
To assure create more valve for customers from all over the world.

Pure PTFE Packing

Spiral Wound Gaskets
Inner&Outer Ring Of SWG spiral wound gaskets

Spiral wound gaskets

Braided Packing
Kaxite Company

About Us

Ningbo Kaxite Sealing Materials Co., Ltd. is based in Ningbo, Zhejiang Province, China. Kaxite is one of the biggest sealing and heat preservation products manufacturer in China. Kaxite supply the overall solution of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets. To assure create more valve for customers from all over the world.

What We Do

We engineer and manufacture custom sealing solutions for critical industrial applications.

Spiral Wound Gaskets

Custom dimensions, any filler (graphite, PTFE, mica), inner/outer rings. ASME B16.20, DIN, BS, JIS standards.

Metal & Non-Metal Gaskets

Ring joint, corrugated, double jacketed, PTFE, rubber, asbestos-free – made to your exact specifications.

Braided Packing & Sheets

PTFE, graphite, aramid, carbon fiber packing; compression sheets for pumps, valves, and flanges.

Why Choose Kaxite Sealing

Your competitive edge in sealing technology.

25+ Years Experience

Two decades of sealing technology expertise, trusted by global engineering firms.

Full Customization

Any size, material, or shape. CAD drawings accepted. Prototype to mass production.

ISO 9001 Certified

Strict quality control – material analysis, dimensional checks, pressure testing.

Global Fast Delivery

15-30 days lead time, air/sea shipping, real-time tracking, 24/7 support.

What Our Clients Say

Real feedback from satisfied customers worldwide.

"Kaxite's spiral wound gaskets saved us 30% compared to European suppliers, with the same ASME certification. Their engineering support was outstanding."

- Thomas M., Procurement Manager, Germany
★★★★★

"We've used Kaxite for PTFE gaskets and braided packing for 5 years. Quality is consistent, delivery always on time. Highly recommended."

- Sarah L., Maintenance Engineer, USA
★★★★★

"The custom SWG rings we ordered for a petrochemical project were perfect. Fast response and competitive pricing. Will order again."

- Ahmed R., Project Director, UAE
★★★★★

Frequently Asked Questions

Quick answers about our spiral wound gaskets and services.

❓ What materials can you use for spiral wound gaskets?

We offer stainless steel (304, 316L, 321) for windings, and filler materials including flexible graphite, PTFE, asbestos-free, mica, and ceramics. Inner/outer rings available in carbon steel or stainless steel.

❓ What is your MOQ for custom gaskets?

For standard SWG series (e.g., ASME B16.20), MOQ is 50 pieces. For fully custom dimensions, sample orders are welcome, and MOQ is negotiable. No minimum for prototypes.

❓ Do you provide engineering support?

Yes, our in-house engineers assist with material selection, pressure-temperature ratings, and CAD drawing verification. We help you choose the right gasket for your application.

❓ What certifications do your gaskets have?

All products are manufactured under ISO 9001:2015. Spiral wound gaskets meet ASME B16.20, DIN 2699, BS 3381, and JIS standards. We can also provide EN 10204 3.1 material certificates.

❓ How long is your lead time?

Standard lead time: 15-30 days for bulk orders. Prototype samples: 7-10 days. Expedited shipping available upon request.

❓ Do you export to my country?

We export to over 40 countries including USA, Canada, UK, Germany, France, Italy, UAE, Saudi Arabia, India, Australia, and Southeast Asia. We can handle all shipping and customs documentation.

Featured Products

Type D Flange Insulation Gasket

Type D Flange Insulation Gasket

Discover the Kaxite Sealing Type D Flange Insulation Gasket, engineered for superior sealing and corrosion prevention in high-pressure industrial systems. Its advanced polymer construction ensures durability and reliable performance, making it ideal for engineers and technicians in oil, gas, and chemical industries. Experience peace of mind with enhanced safety and reduced maintenance. Differentiated by its precise fit and chemical resistance, this gasket offers unmatched efficiency. Trust Kaxite Sealing to elevate your operations effortlessly.
Flange Insulation Gasket Sets

Flange Insulation Gasket Sets

Kaxite Sealing Flange Insulation Gasket Sets provide superior electrical isolation and corrosion protection for industrial piping systems. Featuring advanced polymer materials and precision engineering, these durable gaskets ensure long-term reliability, prevent galvanic corrosion, and reduce maintenance downtime. Ideal for engineers and facilities in chemical, oil & gas, and water treatment industries, they deliver peace of mind with enhanced safety and efficiency. Choose Kaxite Sealing for unmatched quality and performance that sets the standard in insulation solutions.
Seinseal Insulation gasket kits

Seinseal Insulation gasket kits

Upgrade your industrial projects with Kaxite Sealing's Seinseal Insulation Gasket Kits, engineered for superior thermal and acoustic insulation. These durable kits feature advanced materials that ensure long-lasting performance, reducing energy costs and enhancing safety. Perfect for engineers, contractors, and DIY enthusiasts in HVAC, automotive, and manufacturing sectors, they provide reliable sealing solutions that boost efficiency and peace of mind. Stand out from competitors with our easy installation and eco-friendly design, backed by a quality promise. Experience enhanced comfort and performance—explore our innovative kits today!
Flange Insulation Gasket Kits

Flange Insulation Gasket Kits

Discover Kaxite Sealing's Flange Insulation Gasket Kits, designed to prevent corrosion and galvanic action in piping systems. With durable materials and precision engineering, these kits ensure reliable insulation, reduce maintenance costs, and extend equipment life. Ideal for industrial applications, they deliver peace of mind and enhanced safety. Trust Kaxite Sealing for superior quality and performance that stands out from the competition.
PTFE O-Ring

PTFE O-Ring

Kaxite Sealing's PTFE O-Ring offers unparalleled performance for high-temperature and corrosive applications. Its durable PTFE material ensures long-lasting sealing, ideal for industrial and automotive uses. Experience reliability and peace of mind with our distinct design, solving common leakage issues and enhancing efficiency. Choose Kaxite Sealing for superior quality that stands out from the rest.
PTFE Modified Material

PTFE Modified Material

Kaxite Sealing's PTFE Modified Material revolutionizes sealing solutions, offering exceptional durability and chemical resistance for industrial applications. Engineered with advanced polymer technology, this material reduces downtime, extends equipment life, and ensures reliability in harsh environments. Ideal for engineers and manufacturers seeking high-performance components, it provides peace of mind by tackling leakages and wear effectively. Stand out with superior versatility and long-term cost-efficiency—choose Kaxite Sealing for unmatched quality and innovation.
PTFE Micropore Membrance

PTFE Micropore Membrance

Kaxite Sealing presents PTFE Micropore Membrance, a premium filtration solution designed for precise separation in laboratories, industrial processes, and medical applications. Its superior PTFE material ensures high breathability, chemical resistance, and durability, outperforming alternatives. Ideal for professionals demanding reliable performance, it delivers peace of mind and efficiency in critical environments. Elevate your standards with Kaxite Sealing—experience unmatched quality.
PTFE Micropore Gas

PTFE Micropore Gas

Discover Kaxite Sealing's PTFE Micropore Gas—a premium sealing solution for demanding industries like automotive, aerospace, and chemical processing. Its advanced PTFE micropore technology ensures superior durability, exceptional resistance to extreme conditions, and unmatched reliability. Elevate your projects with innovative design, long-lasting performance, and peace of mind. Experience the difference and enhance your applications today!
PTFE Accessories For Printing And Dyeing Mechanical Equipments

PTFE Accessories For Printing And Dyeing Mechanical Equipments

Discover Kaxite Sealing's PTFE accessories for printing and dyeing machinery, crafted from premium PTFE to ensure heat resistance, durability, and smooth operation. Ideal for textile industry professionals, these accessories enhance equipment efficiency, reduce downtime, and deliver reliable performance in demanding environments. Stand out with superior quality and precision engineering that solves wear and tear issues, offering peace of mind and long-term cost savings.
Devlon Ball Valve Seat

Devlon Ball Valve Seat

Kaxite Sealing's Devlon Ball Valve Seat offers high-performance sealing for industrial valves, crafted from durable PTFE for exceptional resilience. Its precision design ensures leak-proof operation in extreme conditions, ideal for engineers and maintenance professionals in demanding environments like chemical plants. Experience unmatched reliability and reduced downtime, making it the superior choice for reliable fluid control solutions.
PTFE Fittings

PTFE Fittings

Discover Kaxite Sealing's PTFE Fittings, crafted from premium PTFE material for exceptional chemical resistance and durability in demanding industrial applications. Ideal for engineers and professionals in chemical processing or manufacturing, these fittings ensure reliable sealing and safety, addressing leakage issues with superior performance. Their unique design offers ease of installation and long-term stability, setting them apart from standard options. Trust Kaxite Sealing for high-quality solutions that boost efficiency and peace of mind.
FEP Special Parts

FEP Special Parts

Discover Kaxite Sealing's FEP Special Parts for unparalleled chemical resistance and durability in demanding industrial applications. Engineered with high-quality fluorinated ethylene propylene, these parts ensure reliable performance in harsh environments, preventing leaks and enhancing efficiency. Ideal for manufacturers in chemical, pharmaceutical, and semiconductor industries, they deliver peace of mind through superior sealing solutions. Stand out from competitors with Kaxite Sealing's precision-crafted design and long-lasting results. Trust in quality that drives innovation—elevate your operations with FEP Special Parts today.

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News

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What is PTFE film and what are its primary applications?
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PTFE, or Teflon, is a highly versatile fluoropolymer known for its exceptional chemical resistance, low friction, and wide temperature tolerance. Common PTFE parts include seals and gaskets for leak-proof connections, bearings for smooth low-friction rotation, and other specialized components like liners, bellows, and valve seats, essential across industries from aerospace to food processing.
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How do you apply gasket tape properly?
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What are the standard sizes and thicknesses for rubber gaskets?
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How do you cut PTFE packing to the correct size?
Learn the essential steps to accurately measure and cut PTFE packing for a perfect seal in pumps and valves.
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How does graphite packing work?
Graphite packing seals rotating or reciprocating shafts by compressing flexible graphite rings into a stuffing box, creating a tight barrier that blocks fluid leakage while allowing shaft movement.
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How does graphite PTFE packing compare to pure PTFE packing?
Graphite PTFE packing offers enhanced heat dissipation and reduced friction compared to pure PTFE, making it suitable for higher speed and temperature applications, while pure PTFE provides superior chemical resistance and is ideal for corrosive environments.
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Is synthetic fiber packing suitable for high-pressure applications?
This article examines the performance and reliability of synthetic fiber packing in high-pressure sealing environments, discussing material properties, pressure limits, and application considerations.
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