Welcome To Our Precision Gasket Industry

No.67,Xinhua Road, Xiaolin Town,

Cixi City,Zhejiang,China 315300

Call Us

+86-13566064802
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Choosing the Right Gasket

Our company specializes in the production of high-quality sealing products, including gaskets, packing, 
and other critical sealing components.
High-Temp Asbestos-Free Gasket for Valves​

Non-asbestos gasket is a sealing material made by adding special adhesives and a little packing to it, then roll and sulfureted. It is a replacement of asbestos gasket. Non-asbestos gasket has better strength, elasticity and supper strong anti-penetrate performance. And it is product with environment protection material.

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Food-Grade Pure PTFE Gasket for Equipment​

PTFE gasket is made by cutting PTFE stick, pipe and sheet into flat shape, V shape gasket or valve annulus. It has 100% PTFE structure. It can bear the most bitter chemical medium, and has good anti-creeping.

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Flexible Rubber Gasket for Pipes​

Rubber gasket is formed by vulcanization once with various of material, any color, all kinds of shape. such as black, white, yellow, red, etc. Rubber gasket with different material has different property, Such as EPDM rubber gasket, Silicone rubber gasket, FKM rubber gasket, etc.

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Heat-Resistant Graphite Gasket for Exchangers​

Gaskets are available to EN 1514-1, ASME B 16.21. Custom dimensions are available on request.

Thickness:1.0mm~ 20.0mm

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Services We Provide
Non-Standard & Drawing-Based Customization
Precision Manufacturing: Translate your CAD drawings (DWG/SOLIDWORKS...
Technical Consultation & Product Matching
Operational Audit: Analyze your、Failure-Preventive Matching、Cost...
Logo Customization Service for Branded Sealing Products
Logo Customization Options:We offer multiple techniques to...

About Us

A Precision Gasket Manufacturer
Established in 2004 as Cixi Xinsheng Sealing Factory, we have evolved into Ningbo Dongheng Sealing Co., Ltd. in 2020, building on over 20 years of expertise in manufacturing high-quality sealing solutions.

Why Choose Us

Our company is a professional sealing gasket manufacturer, has more than 20 years of development, the main products are spiral wound gasket,Kammprofile gasket,ring joint gasket, PTFE gasket and gland packing etc...
 OEM/ODM Capabilities
 Technical Consultation Services
 Emergency Order Handling

Our Industries

We take pride in delivering reliable and durable solutions tailored to meet the demanding requirements of various industries, such as oil & gas, chemical processing, power generation, and manufacturing.
Petroleum
Natural Gas
Chemical Processing
Metallurgy
Power Generation
Manufacturing
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Latest News & Updates
January 05, 2026

Spiral Wound Gasket Types and Applications Complete Industrial Sealing Guide Introduction Industrial leaks start small but spread fast. Flanges shift, bolts relax, and hot cycles change load. A single drip can halt production and raise risk.A Spiral Wound Gasket is built for tough joints.

January 05, 2026

Discover the key differences, advantages, and uses of Spiral Wound Gaskets vs Kammprofile Gaskets. Learn which one suits your sealing needs for optimal performance.

January 05, 2026

Discover the benefits of Non-Asbestos Gaskets for safe, reliable, and eco-friendly sealing solutions. Learn how they outperform traditional gaskets in durability and performance.

WhatsApp / Tel

+8613566064802

Address

No.67,Xinhua Road, Xiaolin Town,Cixi City,Zhejiang,China 315300
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