About Us

Kaxite Company

Ningbo Kaxite Sealing Materials Co., Ltd. is an ISO 9001:2015 certified manufacturer based in Ningbo, Zhejiang Province, China. We supply complete sealing solutions including metal gaskets, non-metallic gaskets, braided packings and compressed gasket sheets for oil & gas, chemical, power generation and marine industries. With 6,000 m² of integrated manufacturing space and 4.5M pcs annual capacity, we create long-term value for distributors and OEM partners in 100+ countries.

Featured Products

Type D Flange Insulation Gasket

Type D Flange Insulation Gasket

Discover Kaxite's Type D Flange Insulation Gasket, a premium solution for superior electrical isolation in piping systems. With durable epoxy-coated materials and innovative design, it prevents galvanic corrosion and ensures long-term reliability, ideal for engineers and industrial applications seeking safety and efficiency. Experience peace of mind with enhanced insulation performance that stands out from competitors, backed by Kaxite's quality promise. Elevate your projects today—grab this essential gasket!
Flange Insulation Gasket Sets

Flange Insulation Gasket Sets

Kaxite Flange Insulation Gasket Sets provide durable electrical isolation and corrosion prevention for industrial flanges. Crafted from high-quality materials, they ensure reliable performance in demanding environments, saving maintenance costs and enhancing safety. Ideal for engineers and maintenance teams in oil, gas, and chemical sectors, these sets deliver peace of mind with superior insulation and long-lasting protection. Choose Kaxite for unmatched quality and efficiency in your operations.
Seinseal Insulation gasket kits

Seinseal Insulation gasket kits

Upgrade your home's efficiency with Kaxite's Seinseal Insulation Gasket Kits—designed to seal gaps, reduce drafts, and save energy. Made from durable, eco-friendly materials, these kits offer quick installation for lasting comfort. Perfect for homeowners and DIY enthusiasts tackling windows and doors, they cut utility bills and enhance coziness. Stand out with superior sealing technology that outperforms standard options. Experience a warmer, quieter home and greater peace of mind—order today!
Flange Insulation Gasket Kits

Flange Insulation Gasket Kits

Kaxite Flange Insulation Gasket Kits provide superior corrosion and electrical insulation for industrial pipelines, ensuring long-term reliability. Made from durable, high-quality materials, these kits prevent galvanic corrosion and enhance safety. Ideal for engineers and maintenance professionals in petrochemical and marine industries, they offer peace of mind by reducing downtime and maintenance costs. Unlike standard gaskets, Kaxite kits feature precision engineering for easy installation and unmatched performance, delivering confidence in every application.
PTFE O-Ring

PTFE O-Ring

Discover Kaxite's PTFE O-Ring, the ultimate sealing solution for demanding industrial and chemical applications. Made from high-quality PTFE material, it offers exceptional resistance to extreme temperatures, chemicals, and wear, ensuring leak-free, reliable performance. Ideal for engineers, manufacturers, and DIY enthusiasts in environments like piping systems, valves, or automotive parts, this O-ring provides peace of mind by preventing costly downtime and enhancing safety. Its superior durability and low friction set it apart from standard options, offering a long-lasting, efficient solution. Trust Kaxite for precision-engineered sealing that empowers your projects and boosts efficiency.
PTFE Modified Material

PTFE Modified Material

Kaxite's PTFE Modified Material revolutionizes everyday surfaces with superior non-stick and durability. This advanced material, ideal for busy households and industrial kitchens, offers effortless cleaning and long-lasting performance. Experience the freedom from stubborn stains and frequent replacements, thanks to its unique Kaxite blend. Made for those who value efficiency and quality, it transforms daily tasks into seamless experiences. Choose Kaxite for a smarter, cleaner solution.
PTFE Micropore Membrance

PTFE Micropore Membrance

Discover Kaxite's PTFE Micropore Membrane: a cutting-edge filtration solution engineered for superior performance. Made from high-quality PTFE, it offers exceptional durability, precision micropores for optimal filtering, and resistance to chemicals and temperature extremes. Ideal for laboratories, industrial applications, and healthcare settings, this membrane ensures reliable, clean results, reducing contamination risks and enhancing efficiency. Unlike standard membranes, Kaxite's innovation provides unmatched consistency and long-lasting use. Experience peace of mind with every filtration—choose Kaxite for trusted quality that delivers results.
PTFE Micropore Gas

PTFE Micropore Gas

Discover Kaxite's PTFE Micropore Gas, an innovative membrane for superior gas filtration and separation. Crafted from advanced PTFE materials, it ensures high efficiency and durability, ideal for industries and labs. Experience unmatched purity and reliability, solving filtration challenges with cutting-edge technology. Elevate your operations effortlessly!
PTFE Accessories For Printing And Dyeing Mechanical Equipments

PTFE Accessories For Printing And Dyeing Mechanical Equipments

Enhance your textile machinery's performance with Kaxite's PTFE Accessories For Printing And Dyeing Mechanical Equipments. Designed for durability and efficiency, these high-quality accessories reduce friction and resist chemicals, ensuring smooth operations in industrial settings. Perfect for manufacturers seeking reliable, long-lasting solutions, Kaxite delivers innovation that boosts productivity and minimizes downtime. Discover the difference with our premium PTFE accessories today.
Devlon Ball Valve Seat

Devlon Ball Valve Seat

Kaxite's Devlon Ball Valve Seat offers superior durability and precise fluid control for industrial applications. Crafted from high-grade Devlon material, it ensures long-lasting performance and reduced maintenance, making it ideal for engineers and facility managers. Experience reliable, leak-proof operation that enhances efficiency and peace of mind in demanding environments.
PTFE Fittings

PTFE Fittings

Enhance your fluid handling systems with Kaxite's PTFE fittings, known for their outstanding chemical resistance and durability. Ideal for industries requiring reliable connections in corrosive environments, these fittings ensure leak-proof performance and ease of assembly. Experience peace of mind with superior quality that outperforms competitors.
FEP Special Parts

FEP Special Parts

Elevate your projects with Kaxite's FEP Special Parts, engineered for precision and durability in demanding applications. These high-performance components offer superior chemical resistance and reliability, ideal for industries requiring exceptional quality. Experience unmatched performance with innovative designs that solve complex challenges. Trust Kaxite for cutting-edge solutions that drive success and efficiency.
Industrial Gasket Manufacturer & Global Supplier

Industrial Gasket Manufacturer & Sealing Solutions Supplier for Oil & Gas, Chemical and Power Plants

Ningbo Kaxite Sealing Materials Co., Ltd. is an ISO 9001:2015 certified manufacturer and supplier of spiral wound gaskets, kammprofile gaskets, ring joint gaskets, PTFE seals and braided packing. We help plant engineers, EPC contractors, MRO buyers and industrial distributors in 100+ countries stop flange leaks and unplanned shutdowns with custom-engineered sealing solutions built for high pressure, high temperature and aggressive media service.

AI Summary

Ningbo Kaxite Sealing Materials Co., Ltd. is an ISO 9001:2015 certified manufacturer and supplier of industrial gaskets, including spiral wound gaskets, kammprofile gaskets, ring joint gaskets, PTFE seals, and braided packing. The company serves oil & gas, chemical, power generation, water treatment, and marine industries in 100+ countries. Key procurement facts: MOQ from 100 pcs, sample lead time 7–10 days, trade terms EXW/FOB/CIF/DDP, custom OEM/ODM available. Every batch ships with a material test report, and EN 10204 3.1 / 3.2 certificates are available on request.

Minimum Order
From 100 Pcs
Standard sizes in stock for trial orders; low MOQ for custom drawings.
Lead Time
7–10 Days
Sample and small-batch delivery. 15–20 days for complex or high-volume orders.
Trade Terms
EXW / FOB / CIF
Flexible Incoterms and payment terms including T/T and L/C at sight.
Custom Solutions
OEM / ODM
Private labelling, custom packaging and made-to-drawing gaskets from your sketches.
6,000 m²
Integrated Factory
4.5M pcs
Annual Capacity
100+
Export Countries
100%
Batch Tested

Sealing Solutions by Industry Application

Selecting a gasket by size alone causes premature failure. Kaxite matches sealing material, construction and facing finish to your actual operating conditions — media, pressure, temperature cycling and flange standard — so the joint holds for the full maintenance cycle.

Oil & Gas Sealing Solutions

Spiral wound, ring joint and kammprofile gaskets for refineries, transmission pipelines, wellheads and offshore platforms. Rated from -196 °C cryogenic service up to 650 °C, with NACE MR0175 compliant metallurgy for sour gas.

ASME B16.20 API 6A NACE MR0175
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Chemical & Petrochemical

PTFE, modified PTFE, expanded graphite and non-asbestos gaskets for reactors, columns, heat exchangers and acid pipelines. Selected for resistance to acids, alkalis, solvents and steam, with low cold-flow under bolt load.

PTFE / RPTFE Graphite Non-Asbestos
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Power Generation & Steam Systems

High-temperature sealing for steam turbines, HRSG boilers, condensers, flue gas ducts and feedwater lines. Graphite and mica based constructions maintain seal integrity through thermal cycling up to 650 °C without creep relaxation.

Up to 650 °C Steam Service Thermal Cycling
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Water Treatment & Desalination

Rubber, EPDM, nitrile and PTFE gaskets for pumps, valves, RO membrane housings and seawater intake lines. Formulated for chloride-rich and mildly oxidising media where metal gaskets would corrode.

EPDM / NBR Seawater RO Systems
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Marine, Offshore & Shipbuilding

Flange insulation kits, copper gaskets and braided packing for ship engines, ballast systems, cargo manifolds and offshore topside modules. Supplied with isolation sleeves and washers to stop galvanic corrosion at dissimilar metal joints.

Isolation Kits Copper Marine Grade
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OEM & Custom Manufacturing

Send a drawing, a sample or even a photo with dimensions — our engineering team returns a quotation and 2D/3D confirmation within 24 hours. Private labelling, custom packaging and drop-shipping available for distributors and OEM partners.

Made to Drawing Private Label 24h Quote
Send your drawing

Certified Quality You Can Audit

Every shipment carries an in-house material test report. Third-party inspection and EN 10204 3.1 / 3.2 certificates are available on request.

ISO 9001:2015 CE Certified API 607 Fire Safe NACE MR0175 ASME B16.20 EN 1514 / EN 12560 EN 10204 3.1 RoHS / REACH

Frequently Asked Questions

Direct answers to the questions our buyers ask most before placing a first order.

QWhat types of gaskets and seals does Kaxite manufacture?

Kaxite manufactures spiral wound gaskets, kammprofile (grooved metal) gaskets, ring joint gaskets, double jacketed gaskets, corrugated gaskets, PTFE and modified PTFE gaskets, expanded graphite gaskets, rubber gaskets, copper gaskets and flange insulation gasket kits. We also produce braided packing, compression sheets and PTFE / PEEK machined seals for the same industries.

QWhat is the MOQ and lead time for custom gaskets?

Standard catalogue sizes start from 100 pieces with stock available for trial orders. Custom gaskets made to your drawing have no fixed MOQ — we accept prototype and small-batch runs. Sample and small-batch lead time is 7–10 working days; complex geometries, special alloys or high-volume orders take 15–20 working days. Expedited production is available for shutdown and turnaround schedules.

QWhich trade terms and payment methods do you accept?

We quote on EXW, FOB Ningbo/Shanghai, CIF and DDP terms. Payment is accepted by T/T (30% deposit, 70% before shipment), L/C at sight, or negotiated terms for repeat customers. Shipping is arranged by sea, air or express courier depending on order volume and urgency.

QDo you supply material certificates and third-party inspection?

Yes. Every batch is tested in our in-house laboratory for compression, creep relaxation, tensile strength and sealability, and ships with a material test report. EN 10204 3.1 certificates are issued as standard on request, and 3.2 certificates, SGS, BV or TUV third-party inspection can be arranged before shipment.

QCan you handle OEM branding and custom packaging?

Absolutely. We offer private labelling with your logo on the gasket, carton and product tag, custom packaging sizes and barcoding, plus drop-shipping for distributors. Our engineering team can also work from a drawing, a physical sample or a photo with dimensions and return a quotation with 2D/3D confirmation within 24 hours.

Get a Sealing Solution Quoted Within 24 Hours

Send us your flange size, pressure rating, temperature and media — or simply upload a drawing. Our engineers will recommend the right gasket construction and return pricing, lead time and shipping terms.

Applications

Send Inquiry

Send us your flange size, pressure rating, temperature and media — our engineers will recommend the right gasket construction and return pricing, lead time and shipping terms within 24 hours.

Send Inquiry

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