Are you looking for the best gasket manufacturers in China to meet your industrial needs? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare some of the top gasket manufacturer factories in China, highlighting their specialties, advantages, and what sets them apart. Let’s dive in and find the perfect fit for your business.

China Spiral Wound Gasket, Ring Joint Gaskets,PTFE …

Top 10 Rubber Gasket Manufacturers And Suppliers In …

Product Details: Hongju manufactures custom silicone rubber gaskets and seals with excellent non-stick and electrical insulation properties. These gaskets maintain their flexibility and compression set at low or high temperatures, making them suitable for various sealant applications. They offer resistance to water, weathering, and oxidation, and are approved for use with potable water up to +85°C. The company also provides FDA-compliant gaskets and detectable metal gaskets to reduce contamination risks. Products are made using state-of-the-art CNC machinery and undergo rigorous quality control inspections.

Pros:
– Excellent non-stick and electrical insulation properties
– Maintains flexibility and compression set at low or high temperatures
– Resistant to water, weathering, and oxidation
– Approved for use with potable water up to +85°C
– Complies with FDA and international safety standards like CE, SGS, REACH, and RO…
– Customizable to any dimension or shape
– Competitive pricing and on-time delivery
– Exceptional after-sales service

Cons:
– No specific cons mentioned on the website
– Production time can vary depending on the quantity and complexity of the order

China Industrial Gasket Manufacturer & Supplier | Longseal

Spiral Wound Gasket – JinSeal

Product Details: JinSeal spiral wound gaskets are manufactured with various configurations, including CG type (with only an outer ring) and CGI type (with both inner and outer rings). These gaskets are suitable for use on flat face and raised face flanges, especially in high-pressure or temperature environments, or where corrosive or toxic media exist. The inner ring provides greater resistance to thermal shock, prevents filler material from being sucked in during vacuum services, and acts as a compression limiting stop. The outer ring works as a center ring, fixing the gasket on the flange faces and providing blow-out resistance and a compression

stop. Materials for the windings and rings include stainless steel (e.g., SS304, SS316), carbon steel, duplex, Monel, and nickel alloys.

Pros:
– High temperature and pressure sealing with good recovery performance
– Suitable for extreme temperature, high pressure, shock, or vibration due to its…
– Inner ring provides greater resistance to thermal shock and prevents inward buck…
– Allows lower clamping forces than solid gaskets
– Versatile material options for windings and rings

Cons:
– CG type gaskets with only an outer ring may have higher costs
– May require specific configurations for different applications, such as heat exc…

UNI-SEALS: Gland Packing Manufacturer, Gasket Sheet …

Product Details: UNI-SEAL® and Uniseal are specialized sealing products. UNI-SEAL® is a modified polymer sealant for screws, available in two types: Uni-Seal® 422 (acrylic based, UV-cured) and Uni-Seal® LN311 (polyamide based, heat-cured). Both provide exceptional watertight bonds and are suitable for various materials. Uniseal, on the other hand, is a rubber-like thermoplastic used for attaching pipes to containers, especially on curved surfaces, and is known for its chemical resistance and ease of installation.

Pros:
– UNI-SEAL® offers up to 5 times reusability without seepage and provides electric…
– UNI-SEAL® resists most automotive fluids, oil, water, and antifreeze
– Uniseal provides a tight waterproof seal, handles irregularities and curvatures,…
– Uniseal is resistant to water, oil-based materials, and UV exposure
– Easy installation and suitable for various applications including plumbing, aqua…

Cons:
– UNI-SEAL® requires initial product testing for optimum performance
– Uniseal may be damaged by sharp edges or points on the pipe
– Uniseal is not recommended for use with flexible tubes
– Uniseal requires careful removal to avoid ripping or tearing

Gaskets – Xiamen Landee Industries

Product Details: Landee supplies a variety of gaskets, including Spiral Wound Gaskets, Flange Gaskets, Metal Gaskets, and PTFE Gaskets. Spiral Wound Gaskets are available in different materials such as SS316, SS304, and with various fillers like PTFE and graphite. They comply with standards like ANSI/ASME B16.20 and API 601, and are available in a range of sizes (from 1/2 to 30 inches) and pressure classes (Class 150 to 600 LB). These gaskets can be customized with or without inner and outer rings. Metal Octagonal Gaskets are made from materials like carbon steel, soft iron, 316, and 304. Seal Gaskets are available in

different shapes, sizes, and colors, and can be customized according to customer designs.

Pros:
– High-quality materials and construction ensure durability and resistance to hars…
– Compliance with international standards such as ANSI/ASME B16.20 and API 601.
– Customization options available for sizes, colors, and shapes to meet specific c…
– Wide range of applications, including boilers, handholes, and manholes.
– Reliable sealing performance due to high-quality fillers like graphite and PTFE.

Cons:
– Limited information on the specific lifespan and maintenance requirements of the…
– No detailed pricing information available on the website.
– Potential for higher costs due to customization and high-quality materials.

Gasket Manufacturers and Suppliers China

China Virgin PTFE Flat Gasket Manufacturers

Product Details: PTFE gaskets are made from polytetrafluoroethylene, a synthetic fluoropolymer known by the trademark name Teflon®. They are highly chemically resistant, have a low coefficient of friction, and excellent electrical insulation properties. PTFE gaskets can withstand temperatures ranging from -200°C to +260°C and are available in various forms, including virgin, expanded, and filled with materials like carbon, glass, or graphite to enhance mechanical strength and reduce creep.

Pros:
– Excellent chemical resistance to most corrosive liquids, vapors, and gases
– High temperature endurance and stability
– Low coefficient of friction reducing wear and tear
– Good electrical insulation properties
– Non-stick surface making cleaning easy
– Compressible and conformable to uneven surfaces
– Non-toxic and FDA-compliant for food and pharmaceutical applications
– Low maintenance and long-lasting

Cons:
– Requires chemical modification or etching to bond with other surfaces
– Can exhibit creep under high pressures and temperatures if not filled with appro…
– Generally softer and less mechanically strong than filled versions

LGP GASKET – Automotive Engine Gasket Manufacturer

Product Details: The website likely details products related to gaskets, including standard gaskets, custom-designed gaskets, die-cut gaskets, molded gaskets, and specialty gaskets. These gaskets are made from various materials such as rubber, silicone, metal, fiber, and other specialty materials. The products are engineered to deliver reliable and effective sealing solutions, leveraging advanced materials science, design principles, and manufacturing processes. The company probably operates globally, serving customers across various sectors and geographical locations, and utilizes state-of-the-art machinery and technologies to ensure high precision, quality, and consistency.

Pros:
– High-quality gaskets made from diverse materials to meet specific applications.
– Advanced manufacturing processes ensuring precision, quality, and consistency.
– Global presence and customer-focused approach.
– Stringent quality control measures and certifications.

Cons:
– Potential high cost due to advanced materials and manufacturing processes.
– Custom or specialty gaskets may have longer lead times.
– Quality control measures, while stringent, may still result in occasional defect…

China Spiral Wound Gasket

Product Details: Spiral wound gaskets are composed of a V-shaped metal strip spirally wound in combination with a soft filler material. They can be specified with inner and/or outer rings. The metal strip provides outstanding recovery, while the flexible filler guarantees excellent sealing. The gaskets are available in various materials such as 316 Stainless Steel, graphite, PTFE, Non-asbestos, and Mica, tailored to suit different operating conditions including high temperature, high pressure, and chemical compatibility. The thickness of the inner and outer rings typically ranges from 2.97 mm to 3.33 mm, and the sealing element is 4.45 mm thick[2][4][5].

Pros:
– Suitable for sealing under severely fluctuating temperature and pressure conditi…
– Excellent recovery under extreme temperature and pressure fluctuations.
– Can be tailored to suit a wide variety of operating conditions, including proces…
– Provides a ‘stop’ preventing over-compression of the sealing element with the ou…
– Available in various filler materials for different chemical compatibilities and…

Cons:
– May require specific material selection to avoid undesirable reactions between t…
– Can be more expensive compared to other types of gaskets due to the complexity o…
– Requires precise installation to ensure proper sealing and prevent issues like ‘…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Gasket Manufacturer Factories in China

What types of gaskets do Chinese manufacturers produce?

Chinese gasket manufacturers produce a wide range of gaskets, including sheet gaskets, metal gaskets, non-metal gaskets, and specialized gaskets like corrugated metal gaskets and constant stress gaskets. These gaskets can be made from various materials such as rubber, silicone, PTFE, graphite, and metal, catering to different industrial applications and requirements.

What certifications and standards do Chinese gasket manufacturers adhere to?

Many Chinese gasket manufacturers adhere to international standards and certifications. These include ISO 9001, ISO 14001, API 6A, FDA, ROHS, and certifications from TUV, SGS, and BV. These certifications ensure that the products meet or exceed industry quality standards and are suitable for various industrial uses.

Can Chinese gasket manufacturers provide custom-made gaskets?

Yes, many Chinese gasket manufacturers offer custom-made gasket services. They can design and produce gaskets according to your specific requirements, including different materials, shapes, and sizes. This flexibility makes them a reliable choice for unique or specialized gasket needs.

What is the typical minimum order quantity (MOQ) for gasket orders from Chinese manufacturers?

The minimum order quantity (MOQ) for gasket orders from Chinese manufacturers can vary. Some manufacturers have a low MOQ of just 1-10 pieces, while others may require a minimum order of 50-100 pieces or even larger quantities like 200 kg for certain types of gaskets. It depends on the specific manufacturer and the type of gasket you are ordering.

How do Chinese gasket manufacturers ensure quality and reliability?

Chinese gasket manufacturers ensure quality and reliability through rigorous quality control processes, advanced production equipment, and continuous research and development. Many of these manufacturers have their own production bases and adhere to strict industry standards. They also offer excellent after-sales services and provide sound advice to enhance customer satisfaction and business operations.