Are you looking for the best gasket and seal factories in China? 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 and seal manufacturers in China, highlighting their specialties, certifications, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

Gasket Manufacturers and Suppliers China

Seals & Gaskets | Custom Industrial Seals & Packing

About Us – Ningbo TECHO Sealing Gasket Co.,Ltd

Product Details: Ningbo Techo Sealing Gasket Co., Ltd. offers a wide range of sealing products. These include gaskets such as Spiral Wound Gaskets, Corrugated Gaskets, Graphite Gaskets, Teflon envelop Gaskets, Metal Jacketed Gaskets, Octagonal Gaskets, and Oval Gaskets. Other products include gland packing (e.g., Graphite Packing, PTFE Graphite Packing), gasket sheets (e.g., Graphite Roll, Compressed Non-Asbestos Jointing Sheet), Teflon products (e.g., PTFE Sheet, PTFE Tubing), glass fiber products (e.g., Glass Fiber Tape), asbestos products (e.g., Asbestos Cloth), and ceramic products (e.g., Ceramic Tape). They also provide machined metal gaskets like API Ring Joint Gaskets and various tape and cord sealing products. The

company specializes in sealing solutions for the mining, oil, and gas industries and offers technical advice and design support[1][2][5].

Pros:
– Extensive experience in the mining, oil, and gas industries with various supply…
– ISO9001:2008 international Quality System Certification
– Flexible and able to assist in troubleshooting and provide technical support
– Ability to solve demanding or difficult sealing applications
– Capacity to refurbish and repair mechanical seals with access to OEM spares
– Wide range of products to meet different application needs

Cons:
– No specific cons mentioned on the website, but potential issues could include hi…
– Dependence on the quality of raw materials which could affect the performance of…

Spiral Wound Gaskets,Flange Insulation Kits,Expanded PTFE …

Top 10 Rubber Gasket Manufacturers And Suppliers In China …

China Industrial Gasket Manufacturer & Supplier | Longseal

Product Details: Nitrile (Buna-N) gaskets are made from a rubber compound known as acrylonitrile butadiene terpolymer (NBR). They are highly resistant to petroleum oils, mineral oils, vegetable oils, and many acids. These gaskets have good elongation properties, adequate resilience, tensile strength, and compression set. They are available in various grades, including commercial, food grade, and high-strength grades. The durometer hardness ranges from 30 to 90 Shore A, and they can operate within a temperature range of -30°F to +200°F (-34°C to +93°C)[1][2][5].

Pros:
– Excellent resistance to oils, fuels, and greases
– Good tensile strength and tear resistance
– Wide operating temperature range
– Suitable for use in highly demanding applications
– Available in food-grade and other specialized grades
– High wear resistance and good mechanical properties

Cons:
– Not compatible with fuels of high aromatic content, aromatic hydrocarbons, chlor…
– Elasticity and resistance to compression set can be adversely affected by high a…
– Not suitable for applications involving strong acids, glycol-based brake fluids,…

spiral wound gaskets Sunwell Seals

Product Details: Sunwell Seals produces a variety of gaskets, including spiral wound gaskets, ring joint gaskets, solid copper gaskets, and compressed non-asbestos gaskets. Their spiral wound gaskets are manufactured in accordance with relevant gasket standards and include types such as CG, CGI, R, and RIR. These gaskets can be made from various materials, including duplex stainless steel, which is designed to combat common corrosion problems. The company also provides insulation gaskets, insulation gasket kits, and flange insulation kits, and offers services like soft compression sheets and die-cutting gaskets to reduce supply costs and save time.

Pros:
– Compliance with all relevant gasket standards
– Wide range of gasket types and materials available
– Cost-effective solutions through efficient supply and manufacturing processes
– High-quality materials such as duplex stainless steel to combat corrosion

Cons:
– No specific information on the website regarding potential drawbacks or limitati…
– No customer reviews or feedback available on the website to gauge product perfor…

sealing packing gasket, seals packing gasket Manufacturer …

Gaskets & Seals Manufacturers

Product Details: Sealing-china.com offers a wide range of industrial sealing products, including Spiral Wound Gaskets, Metal Serrated Gaskets, Metal Corrugated Gaskets, Ring Joint Gaskets, Metal Jacketed Gaskets, PTFE Envelope Gaskets, Reinforced Graphite Gaskets, Teflon Gaskets, Reinforced PTFE Gaskets, Expanded PTFE Gaskets, Non-Asbestos Gaskets, Rubber Gaskets, and Rubber O-Rings. These products are suitable for various applications such as pipes, valves, and pumps, and are available in standard flange sizes like ASME, JIS, DIN, and EN. The company also produces Gland Packing made from materials like graphite, PTFE, Aramid, and carbon yarn, which can be reinforced with metal or non-metallic materials. Their products are

used in industries like petrochemical, oil refining, electric power, iron and steel, and shipbuilding.

Pros:
– Wide range of sealing products available
– Suitable for frequent temperature and pressure changes
– Available in various standard flange sizes
– Used in multiple industries including petrochemical, oil refining, and electric…
– Own production workshop and CNC machining factory for direct pricing and product…
– Strong R&D team for custom product development
– Advanced testing lab and inspection equipment for quality assurance
– Free samples and low MOQ options

Cons:
– No specific details on pricing or cost structure provided
– Shipping costs and logistics may vary depending on the customer’s location and o…
– No detailed customer reviews or testimonials on the website

Garlock China

Product Details: Garlock China, established in January 2008 and headquartered in Shanghai, provides advanced sealing solutions to the Asian market. The company has over 80 employees across its main office in Shanghai and regional sales offices in Beijing, Dalian, Zhengzhou, Chengdu, and Shenzhen. Garlock China offers a full line of Garlock products, including those from GSP and GPT, as well as certain products from the Technetics Group. Key products manufactured in Shanghai include spiral wound metal gaskets, kammprofile metal gaskets, non-metallic pipe flange gaskets, welded GYLON, EVSP packings, and KLOZURE oil seals.

Pros:
– Provides advanced sealing solutions tailored to the Asian market
– Wide range of products including metal gaskets, non-metallic gaskets, and oil se…
– Manufacturing and sales presence across multiple cities in China
– Supports various industries with high-performance sealing solutions

Cons:
– Limited information on specific product drawbacks or customer complaints
– No mention of any potential environmental or health concerns associated with the…

Comparison Table

Frequently Asked Questions (FAQs)

What types of gaskets and seals do Chinese factories typically produce?

Chinese gasket and seal factories produce a wide range of products, including spiral wound gaskets, ring joint gaskets, metal jacketed gaskets, and various types of rubber gaskets such as silicone, neoprene, and Viton. They also manufacture gland packings, gasket sheets, PTFE products, and specialized seals like hydraulic seals and high-pressure rubber seals. These products are designed for diverse industries, including mining, oil and gas, automotive, and engineering construction.

What certifications and quality standards do these factories adhere to?

Many Chinese gasket and seal factories adhere to international quality standards such as ISO 9001 and ISO 9000. Some also hold certifications like FDA, ROHS, and API 6A, which are approved by reputable bodies like TUV, SGS, and BV. These certifications ensure that the products meet or exceed industry quality standards, providing you with reliable and high-quality gaskets and seals.

How long does it take to receive orders from Chinese gasket and seal factories?

The lead time for orders can vary depending on the factory and the type of product. For regular products, you can expect delivery within 6-8 working days. For customized products, the lead time may be longer and depends on the production line. Some factories offer quick turnaround times, such as 15 working days, while others may take up to a month during off-peak seasons.

Do Chinese gasket and seal factories offer customization and technical support?

Yes, many Chinese gasket and seal factories offer customization services. They can produce gaskets and seals according to your specific requirements and provide technical advice and design assistance. These factories often have experienced engineers and designers who can help you with troubleshooting and ensure that the products meet your application needs.

What kind of after-sales service can you expect from these factories?

Chinese gasket and seal factories typically offer excellent after-sales service. They provide stable cooperation with distributor partners, handle all details of your order, and ensure timely delivery. Many factories also offer free samples, accept third-party inspections, and provide ongoing support to help you monitor and control risks in the order process. Their customer service teams are often highly responsive and supportive.