Are you looking for the best O-ring factories in China to meet your sealing 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 O-ring manufacturers in China, highlighting their strengths, product ranges, and what sets them apart. Let’s dive in and find the perfect fit for your requirements.

tap o ring Manufacturer & Supplier in China – Nanjing Hovoo …

Product Details: O-rings for tap applications are toroidal elastomeric sealing devices designed to prevent the passage of fluids between two mating surfaces. They are typically made from materials such as nitrile (NBR), fluorocarbon (FKM), or silicone, and come in standardized sizes like the AS568 and ISO 3601 dimensions. For tap fittings, common sizes like the No. 8.5 o-ring (10.3mm ID, 15.1mm OD, 2.4mm thickness) are often used. These o-rings are suitable for both hot and cold water applications and are designed to be seated in a groove and compressed to form a seal.

Pros:
– Effective sealing solution against fluids and gases under static and dynamic con…
– Available in various materials to suit different operational parameters such as…
– Easy to install and maintain, with coated options available for reduced wear and…
– Wide range of applications from tap fittings to other industrial and household u…

Cons:
– May degrade over time due to exposure to chemicals, high temperatures, or ozone.
– Requires proper gland or groove dimensions to ensure optimal sealing performance…
– Can be affected by surface irregularities if not properly seated.
– May not be suitable for extreme conditions without the use of specialized materi…

China O Rings Manufacturers and Suppliers

Rubber O-ring For Faucet

Product Details: The rubber O-rings for faucets are made from materials such as NBR, EPDM, and SILICONE, with hardness levels ranging from 20 to 90. They come in various OEM sizes and colors, including black and other customizable colors. The work temperature range varies from -50°C to +150°C, +200°C, or +220°C depending on the material. These O-rings are certified with ROHS, REACH, PROP 65, FDA, or NSF compliance and have a shelf life of 15 years. They are 100% inspected by auto machines to ensure good water tightness for faucets.

Pros:
– High quality and professional service
– Advanced technologies to ensure highest quality
– Efficient and cost-effective products
– Timely delivery and good after-sales service
– Customizable sizes and colors
– Compliance with various safety standards (ROHS, REACH, PROP 65, FDA, NSF)
– Long shelf life of 15 years
– Guaranteed good water tightness due to 100% auto machine inspection

Cons:
– No specific cons mentioned, but potential issues could include variability in qu…

Soft rubber store o rings – Kin by Rice n Roll

Product Details: KIN by Rice n Roll is a family-run restaurant located in the Wauwatosa neighborhood. It is part of the Rice n Roll Bistro family and offers a variety of Asian food and sushi with a modernized look and authentic taste from across Asia, especially Thailand and Japan.

Pros:
– Offers homemade, fresh, and tasty Asian cuisine
– Varieties of Asian food and sushi with modernized presentation
– Family-run restaurant with passionate staff

Cons:
– Closed on Mondays
– No reservations accepted on Fridays and Saturdays
– Tables will be released if parties are more than 5 minutes late

China Custom Faucet O Ring Manufacturers Suppliers …

Product Details: MAQIAO is a professional o-ring manufacturer and supplier in China, known for its high-quality products and good service. They specialize in producing various types of o-rings, including faucet o-rings, M8 Anti Vibration Mounts, PUMP Rubber Gaskets, and Rubber Bellows. The company has modern assembly lines and testing equipment to ensure production efficiency and strict quality control. They offer diversified products, including Viton Quad Rings for dynamic seals, water-resistant gaskets, food-grade FKM rubber X rings, IIR o-rings, and more. The company emphasizes customer-centered service and provides professional technical training.

Pros:
– High-quality products with strict quality control
– Modern assembly lines and testing equipment
– Diversified product range to meet various industry needs
– Customer-centered service and professional technical training
– Experienced technical, managerial, and marketing teams

Cons:
– No specific cons mentioned on the website
– Limited information on pricing and availability

China O-Ring Kits Suppliers – NNK Oil Seal

Product Details: O-ring kit boxes are comprehensive sets containing various sizes of O-rings, typically made from materials such as NBR (Nitrile), Silicone, FKM, EPDM, and HNBR. These kits are designed to provide a wide range of O-ring sizes for different applications, including sealing liquid and gaseous media in high-pressure environments. Each kit usually includes hundreds of O-rings organized in a hard-wearing storage box. The kits are available in different configurations, such as metric, inch, and Japanese sizes, and can be customized to meet specific needs.

Pros:
– Provides a wide range of O-ring sizes for various applications
– Made from high-quality materials ensuring superior sealing performance
– Customization options available to meet specific requirements
– Enhances system efficiency by preventing leaks and reducing friction
– Suitable for many industrial applications, including static, dynamic, hydraulic,…

Cons:
– May not be suitable for safety-critical applications like automotive without pre…
– Higher quality kits can be more expensive compared to lower quality alternatives
– Storage and organization of the O-rings can be cumbersome if not properly manage…

Top 10 O-ring Manufacturers and Suppliers in China (2024)

Product Details: Hongju produces high-quality silicone rubber O-rings and high-temperature O-ring seals. These O-rings are used in various applications such as engines, pumps, cylinders, connectors, and valves. The company offers both standard and custom-made O-rings to meet specific customer needs. The manufacturing process includes design, tool making, color mixing, compression molding, and quality inspection. Hongju adheres to ISO 3601 standards for dimensions and tolerances and uses high-quality raw materials. The company also provides options for using liquid silicone rubber and offers different hardness levels with a tolerance of plus or minus 3-5A[1].

Pros:
– High-quality silicone rubber O-rings and high-temperature O-ring seals
– Custom-made O-rings available to meet specific customer needs
– Strict quality control and adherence to ISO 3601 standards
– Wide range of applications including engines, pumps, cylinders, connectors, and…
– Use of high-quality raw materials and advanced equipment
– Options for using liquid silicone rubber and various hardness levels
– Low minimum order quantity (MOQ) and rapid prototyping available
– Products comply with international safety standards such as CE, FDA, and ROHS Di…

Cons:
– Importing from China may involve longer shipping times
– Factory inspection may be limited due to epidemic restrictions, though online in…

Quick opening tap silicone rubber gasket seals – IKSonic

Product Details: The quick opening tap silicone rubber gasket seal is made from superior quality silicone. It is acid and alkali resistant, unbreakable, non-toxic, odorless, and environmentally friendly. The gasket is designed for durability and reliability in various applications.

Pros:
– Acid and alkali resistance
– Unbreakable
– Non-toxic
– Odorless
– Environmentally friendly
– Durable

Cons:
– No specific cons mentioned on the webpage.

Stainless O Ring Manufacturer in China – HM

Product Details: The stainless steel O rings manufactured by HM involve a precision CNC machining process. It starts with the selection of high-quality stainless steel material. These O rings are designed for various applications, including industrial, marine, and other sectors where corrosion resistance and durability are crucial. The manufacturing process ensures tight tolerances and precise dimensions, making them suitable for sealing and other critical functions.

Pros:
– Made from high-quality stainless steel material for enhanced durability and corr…
– Precision CNC machining ensures tight tolerances and precise dimensions.
– Suitable for various applications including industrial, marine, and other sector…

Cons:
– No specific cons mentioned on the website, but potential issues could include hi…

China O ring For Water Tap Manufacturers Factory Suppliers

Product Details: O-rings for water taps are toroidal elastomeric sealing devices designed to prevent leaks between two mating surfaces. They are typically made from materials such as nitrile (Buna-N), fluorocarbon (Viton), or silicone, and are available in various sizes and durometer hardness levels. These o-rings are compliant with standardized dimensional parameters like AS568 and ISO 3601, ensuring precise fit and optimal sealing performance.

Pros:
– Effective sealing solution to prevent water leaks
– Available in various materials to suit different chemical and temperature requir…
– Compliant with standardized sizes for easy replacement and compatibility
– Can be used in both static and dynamic sealing applications
– Resilient to surface irregularities, maintaining seal integrity

Cons:
– May require specific installation techniques to ensure proper sealing
– Can degrade over time due to exposure to chemicals, heat, or ozone
– May not be suitable for all types of faucets or plumbing systems without proper…
– Can be prone to compression set if not made from the appropriate elastomeric com…

Comparison Table

Company	Product Details	Pros	Cons	Website
tap o ring Manufacturer & Supplier in China – Nanjing Hovoo …	O-rings for tap applications are toroidal elastomeric sealing devices designed to prevent the passage of fluids between two mating surfaces. They are…	– Effective sealing solution against fluids and gases under static and dynamic con… – Available in various materials to suit different operational p…	– May degrade over time due to exposure to chemicals, high temperatures, or ozone. – Requires proper gland or groove dimensions to ensure optimal seal…	www.hovooseal.com
China O Rings Manufacturers and Suppliers				www.svks-rubberseal.com
Rubber O-ring For Faucet	The rubber O-rings for faucets are made from materials such as NBR, EPDM, and SILICONE, with hardness levels ranging from 20 to 90. They come in vario…	– High quality and professional service – Advanced technologies to ensure highest quality – Efficient and cost-effective products – Timely delivery an…	– No specific cons mentioned, but potential issues could include variability in qu…	www.xmbestseal.com
Soft rubber store o rings – Kin by Rice n Roll	KIN by Rice n Roll is a family-run restaurant located in the Wauwatosa neighborhood. It is part of the Rice n Roll Bistro family and offers a variety…	– Offers homemade, fresh, and tasty Asian cuisine – Varieties of Asian food and sushi with modernized presentation – Family-run restaurant with passio…	– Closed on Mondays – No reservations accepted on Fridays and Saturdays – Tables will be released if parties are more than 5 minutes late	kinbyricenroll.com
China Custom Faucet O Ring Manufacturers Suppliers …	MAQIAO is a professional o-ring manufacturer and supplier in China, known for its high-quality products and good service. They specialize in producing…	– High-quality products with strict quality control – Modern assembly lines and testing equipment – Diversified product range to meet various industry…	– No specific cons mentioned on the website – Limited information on pricing and availability	www.hskseal.com
China O-Ring Kits Suppliers – NNK Oil Seal	O-ring kit boxes are comprehensive sets containing various sizes of O-rings, typically made from materials such as NBR (Nitrile), Silicone, FKM, EPDM,…	– Provides a wide range of O-ring sizes for various applications – Made from high-quality materials ensuring superior sealing performance – Customizat…	– May not be suitable for safety-critical applications like automotive without pre… – Higher quality kits can be more expensive compared to lower qu…	www.nokcn-seals.com
Top 10 O-ring Manufacturers and Suppliers in China (2024)	Hongju produces high-quality silicone rubber O-rings and high-temperature O-ring seals. These O-rings are used in various applications such as engines…	– High-quality silicone rubber O-rings and high-temperature O-ring seals – Custom-made O-rings available to meet specific customer needs – Strict qual…	– Importing from China may involve longer shipping times – Factory inspection may be limited due to epidemic restrictions, though online in…	hongjusilicone.com
Quick opening tap silicone rubber gasket seals – IKSonic	The quick opening tap silicone rubber gasket seal is made from superior quality silicone. It is acid and alkali resistant, unbreakable, non-toxic, odo…	– Acid and alkali resistance – Unbreakable – Non-toxic – Odorless – Environmentally friendly – Durable	– No specific cons mentioned on the webpage.	www.iksonic.com
Stainless O Ring Manufacturer in China – HM	The stainless steel O rings manufactured by HM involve a precision CNC machining process. It starts with the selection of high-quality stainless steel…	– Made from high-quality stainless steel material for enhanced durability and corr… – Precision CNC machining ensures tight tolerances and precise d…	– No specific cons mentioned on the website, but potential issues could include hi…	hmaking.com
China O ring For Water Tap Manufacturers Factory Suppliers	O-rings for water taps are toroidal elastomeric sealing devices designed to prevent leaks between two mating surfaces. They are typically made from ma…	– Effective sealing solution to prevent water leaks – Available in various materials to suit different chemical and temperature requir… – Compliant…	– May require specific installation techniques to ensure proper sealing – Can degrade over time due to exposure to chemicals, heat, or ozone – May not…	www.zhonggaoseals.com

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring Factories in China

What types of materials do Chinese O-ring factories typically use?

Chinese O-ring factories use a wide range of materials to cater to different applications. These include Viton (FKM), Nitrile (NBR), Hydrogenated Nitrile (HNBR), Ethylene Propylene Diene Monomer (EPDM), Fluorosilicone (FVMQ), and Polytetrafluoroethylene (PTFE), among others. Each material is chosen based on its chemical compatibility, temperature resistance, and other factors relevant to the specific use case.

What certifications should I look for in a Chinese O-ring factory?

When selecting an O-ring factory in China, look for certifications such as ISO 9001 for quality management, ISO 14001 for environmental management, and industry-specific certifications like RoHS, SGS, and API. These certifications ensure that the products meet international standards and are of high quality.

Can Chinese O-ring factories provide custom-made O-rings?

Yes, many Chinese O-ring factories offer custom-made O-ring services. They can design and produce O-rings in various sizes, shapes, and materials according to your specific requirements. This includes custom options for design, color, packaging, and even logos, making it possible to get O-rings tailored to your needs.

What is the typical production process for O-rings in Chinese factories?

The production process for O-rings in Chinese factories involves several steps: selecting the mold, material selection, extrusion, molding (compression, transfer, or injection), spliced and vulcanized extrusions for large O-rings, and finally, curing and finishing. Each step is crucial to ensure the O-rings meet the required standards and performance criteria.

How do I ensure the quality of O-rings from Chinese factories?

To ensure the quality of O-rings from Chinese factories, you should check their certifications, inspect their production facilities, and review their quality control processes. Many factories also offer samples before bulk production, which can help you assess the quality firsthand. Additionally, look for factories with skilled workers and modern equipment to guarantee high-performance products.