Are you looking for the best o-ring manufacturers in China that can handle high-temperature applications? If so, you’re in the right place. In this article, we’ll compare the top factories that specialize in producing high-quality, heat-resistant o-rings, helping you make an informed decision for your needs. Let’s dive in and explore the leaders in this field.

China Silicone O Ring

Product Details: Silicone O-rings are synthetic elastomers based on silicon, with pendant organic groups such as methyl, phenyl, and vinyl attached to silicon atoms. They are available in various types, including VMQ, PVMQ, and FVMQ, and can be formulated to meet specific requirements such as FDA, USP Class VI, and other industry standards. They are used in a wide range of applications including medical, automotive, aerospace, and electronics.

Pros:
– Excellent heat, ozone, and corona resistance
– Good dielectric stability and resistance to many oils, chemicals, and solvents
– Retains flexibility at low temperatures
– Non-toxic and biocompatible, making them suitable for medical and food applicati…
– Excellent resistance to UV light, water, oxygen, and moisture
– Can be formulated to meet specific temperature ranges and other requirements
– Available in various colors and can be made conductive or insulating

Cons:
– Low tensile strength and wear and tear resistance
– Not suitable for concentrated acids and alkalis, steam over 120°C (248°F), petro…
– More expensive when platinum-cured, especially for medical applications
– May stretch easily during installation if in low durometers

High Temperature Viton Rubber O Ring Cord

Product Details: Viton® O-rings, also known as FKM (Fluoroelastomer) O-rings, are highly fluorinated carbon-based polymers. They are used in applications requiring maximum resistance to elevated temperatures and various fluids. The temperature range of Viton® O-rings is generally between -20°C to +205°C, though some grades can handle temperatures from -30°C to +230°C for short periods. They are available in various formulations, including standard and specialty types, and are used in industries such as aerospace, automotive, and petrochemical.

Pros:
– Excellent resistance to high temperatures and chemicals
– Low compression set and excellent aging characteristics
– High resistance to ozone, mineral oils, greases, petrol, diesel fuels, and chlor…
– Low gas permeability and self-extinguishing properties
– Available in various formulations for different applications, including food and…

Cons:
– Not recommended for use with steam, amines, or polar solvents
– May degrade in certain chemical environments
– Higher cost compared to some other O-ring materials
– Limited low-temperature flexibility in some grades

Quickly Know About High Temperature O-rings | DCW

Product Details: High-temperature O-rings are circular sealing devices designed to create a tight seal between two or more components under high temperature and pressure conditions. They are made of specialized fluoropolymer materials such as PTFE, PEEK, PVDF, PCTFE, and PFA. These materials offer excellent chemical and thermal stability, making them suitable for harsh environments. The temperature range for these O-rings can vary from -50°C to over 300°C, depending on the material used.

Pros:
– Excellent chemical and thermal stability
– High heat resistance, with some materials like PTFE and PFA able to withstand te…
– Good mechanical properties, including low friction and high mechanical strength
– Resistance to chemicals, including acids, bases, and organic solvents
– Suitable for use in extreme temperature applications such as aerospace, automoti…

Cons:
– Some materials like PTFE can be stiff and difficult to apply and remove, making…
– Materials like PVDF and PCTFE may have limitations in terms of mechanical stress…
– Higher cost compared to traditional O-ring materials

Perfluoroelastomer FFKM O ring Manufacturer

Product Details: FFKM O-rings are made of perfluoroelastomer compounds with a higher fluorine content than FKM fluoroelastomers. They are known for their excellent resistance to chemical corrosion, organic and inorganic acids, alkali, ester, ether, ketone, aldehyde, superheated water, and steam. The maximum operating temperature is 230 °C (446 °F), and they can be fabricated into various forms such as O-rings, diaphragms, gaskets, rubber strips, and rubber plates. Key mechanical properties include a hardness of Shore A 78, 100% modulus of 9.4 MPa, tensile strength of 15.9 MPa, elongation at break of 130%, and a compression set of 20.7% after 70 hours at

204 °C[1].

Pros:
– High temperature resistance up to 620 °F (326 °C)[1][3] – Excellent chemical resistance to a wide range of aggressive chemicals, including…
– Long service life and reliability in dynamic and static applications[3] – Low off-gassing and extractable levels, making them suitable for clean environme…
– Excellent compression set resistance, ensuring long-term sealing efficiency[4]

Cons:
– Significantly more costly than standard FKM materials[3] – Poor low temperature performance[3] – Lower tensile strength compared to some other elastomers[4]

China Supplier High Temperature Rubber O Rings For Sale

Product Details: High-temperature rubber O-rings are designed to withstand extreme temperatures and are made from various elastomeric materials such as Viton (FKM), PTFE, Silicone, and FFKM. These O-rings are used in applications requiring high temperature resistance, chemical compatibility, and durability. They are available in standard, inch, or metric sizes and can be customized for specific needs.

Pros:
– High temperature resistance, with some materials able to withstand temperatures…
– Excellent chemical resistance to a wide range of chemicals, including acids, alk…
– Good mechanical properties such as elasticity, tensile strength, and durability
– Suitable for use in harsh environments, including high vacuum and high-pressure…
– Available in various materials to meet different application requirements, such…

Cons:
– Material selection is critical, and incorrect choice can lead to accelerated wea…
– High-temperature O-rings can be more expensive than standard O-rings
– Some materials may have limited low-temperature flexibility
– Thermal expansion can affect the seal’s integrity if not properly considered

High Temperature Clear Silicone O-Rings

Product Details: High Temperature Clear Silicone O-Rings are made from Silicone (VMQ) material. They have a hardness range of 20~80 Shore A, with common hardness levels at 50/60 Shore A. The colors available are generally natural, black, and red. These o-rings are available in AS568, GB/T 3452.1, and Metric standard sizes. They operate within a temperature range of -60~225 ℃.

Pros:
– Excellent high and low temperature resistance
– Good ozone resistance and weather resistance
– Soft and elastic with good sealing and electrical insulating properties
– Nontoxic, making them suitable for food and medical industries
– Customizable with various colors and sizes

Cons:
– No specific cons mentioned in the source, but general limitations of silicone o-…

Stainless O Ring Manufacturer in China – HM

Product Details: The stainless steel O rings manufactured by HM involve a precision CNC machining process, starting with the selection of high-quality stainless steel material. These O rings are available in various grades, including 302, 303, 301, 304, 304L, 316, and 316L, to cater to different industry needs. The manufacturing process ensures high precision and durability, making these O rings suitable for a wide range of applications such as marine, aerospace, and industrial uses.

Pros:
– High-quality stainless steel material ensures durability and resistance to corro…
– Precision CNC machining for accurate and reliable performance.
– Available in multiple grades to suit various industry requirements.
– Suitable for diverse applications including marine, aerospace, and industrial us…

Cons:
– No specific information on cons is provided on the website, but potential drawba…

High-quality O-ring Seals Manufacturer-Topa

Product Details: O-rings are round seals that create a mechanical seal between objects to prevent leakage of liquids and gases. They are available in various materials such as polyurethane, neoprene, silicone, Buna-N, PTFE, etc., depending on the environment, pressure, and temperature. O-rings are commonly used in gas cylinders, pumps, connectors, and other appliances across industries like agriculture, industry, oil and gas, food, and construction.

Pros:
– Stop foreign contaminants
– Maintain lubrication between objects
– Lighter in weight
– Easy to install and remove
– Resistant to abrasion
– Adaptable to extreme environments

Cons:
– Can leak due to incorrect installation, wrong size, excessive pressure, chemical…
– Material degradation over time depending on the material used (e.g., SBR, natura…

O-Rings, Rubber Seals – Best China Manufacturer & Supplier

Product Details: Savvy manufactures a wide range of o-rings, including traditional standard o-rings, encapsulated o-rings, backup-rings, and x-rings. The o-rings can be made from various materials such as NBR, FKM (Viton), Silicone, EPDM, HNBR, CR, and Aflas. The temperature range for these o-rings varies by material, with Silicone o-rings operating from -70°C to 220°C. The hardness of the o-rings is measured in Shore A, typically ranging from 40 to 90, with Shore A 70 being commonly used. Savvy also offers custom o-ring production with low mold/tooling costs and fast delivery. O-rings are available in various colors, with standard colors including Black for

NBR, Green for HNBR, Brown for Viton, and Red/Transparent/White for Silicone.

Pros:
– High-temperature resistance: Silicone o-rings can operate from -70°C to 220°C.
– FDA compliance: Silicone o-rings are tasteless, non-toxic, and suitable for food…
– Wide material options: Available in NBR, FKM, Silicone, EPDM, HNBR, CR, and Afla…
– Custom production: Low mold/tooling costs and fast delivery for custom o-rings.
– Variety of applications: Suitable for static and dynamic sealing in various indu…
– Easy installation: O-rings with lower hardness are easier to install.

Cons:
– Low hardness o-rings are prone to peeling, installation damage, extrusion, and p…
– High hardness o-rings can be inconvenient to install.
– Unique colors may increase cost and require a larger MOQ with longer delivery ti…

High Temp O Rings

Product Details: High-temperature O-rings are designed to withstand extreme temperatures, often ranging from -50°C to +300°C or higher. They are made from materials such as Viton (FKM), PTFE, silicone, and other specialized elastomers. These O-rings are used in applications where high thermal stability, chemical resistance, and low friction are critical, such as in aerospace, automotive, and chemical processing industries.

Pros:
– Excellent resistance to high temperatures, with some materials like PTFE and PEE…
– High chemical resistance, making them suitable for use with various chemicals, f…
– Low friction coefficient, which ensures easy installation and removal without da…
– Moisture resistance, preventing swelling or deterioration due to water exposure.
– Dimensional stability, maintaining shape and size even in extreme temperature en…

Cons:
– Potential for thermal expansion and contraction, which can affect sealing effect…
– Risk of compression set and permanent deformation if exposed to temperatures bey…
– Higher cost compared to standard O-rings due to the specialized materials used.
– Limited material options for very specific high-temperature applications, requir…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About O-Ring High Temperature Factories in China

What materials are commonly used for high-temperature O-rings in Chinese factories?

High-temperature O-rings in Chinese factories are often made from materials like FKM (Viton), FFKM (Perfluoroelastomer), and silicone. These materials are chosen for their excellent resistance to high temperatures and various chemicals. For instance, FFKM O-rings can withstand temperatures up to 620°F, making them ideal for extreme environments.

How do Chinese manufacturers ensure the quality of their high-temperature O-rings?

Chinese manufacturers like Hongju and Savvy Rubber implement strict quality control measures. This includes designing and testing the O-rings using advanced CNC milling machines, compression molding, and both manual and machine testing to ensure the products meet international standards such as ISO3601.

What is the typical manufacturing process for high-temperature O-rings in China?

The manufacturing process involves several steps: designing the O-ring, making the mold, mixing and matching colors if necessary, compression molding to ensure accuracy, and thorough quality inspection before packaging and shipping. This process ensures that the O-rings are made to precise specifications and meet the required standards.

Can I customize the size and material of my high-temperature O-rings when ordering from Chinese factories?

Yes, you can customize the size and material of your high-temperature O-rings. Many Chinese manufacturers, such as Hongju and Savvy Rubber, offer OEM and ODM services, allowing you to specify the material, size, and even color of your O-rings according to your specific needs.

How long do high-temperature O-rings typically last, and what factors affect their lifespan?

High-temperature O-rings can last anywhere from 10 to 30 years depending on the material and usage conditions. Factors such as temperature, pressure, chemical exposure, and proper installation significantly affect their lifespan. For example, silicone and fluorocarbon O-rings are known for their long-lasting performance in extreme environments.