Are you looking for the best high heat O-ring manufacturers in China? When it comes to withstanding extreme temperatures, not all O-rings are created equal. In this article, we’ll compare the top Chinese factories that specialize in producing high heat-resistant O-rings, helping you make the right choice for your needs. Let’s dive in and find out which ones stand out from the rest.

High Temperature Viton Rubber O Ring Cord

Product Details: Viton® O-Rings are made from fluorocarbon elastomers (FKM/FPM) known for their excellent resistance to chemicals and temperatures. They are used in various industries such as aerospace, automotive, agricultural, and petrochemical. The temperature range for 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[1][3][4].

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

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

Stainless O Ring Manufacturer in China – HM

Product Details: The manufacturing process of stainless steel O rings at HM involves precision CNC machining. It starts with the selection of high-quality stainless steel material. The O rings are made from various grades of stainless steel, including 302, 303, 301, 304, 304L, 316, and 316L. These O rings are designed for durability and resistance to corrosion, making them suitable for a wide range of industries such as chemical processing, food processing, and medical equipment. Custom and standard designs are available to meet specific application requirements.

Pros:
– Made from high-quality stainless steel for durability and corrosion resistance
– Precision CNC machining ensures accurate dimensions and high quality
– Available in various grades of stainless steel to suit different applications
– Custom and standard designs to meet specific industry needs

Cons:
– Limited information available on the website regarding specific temperature and…
– No detailed information on the cost or lead time for custom orders

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…

China Silicone O Ring

Product Details: Silicone O-rings are synthetic elastomers made from silicon, oxygen, hydrogen, and carbon, with various organic groups attached to silicon atoms. They are available in different types such as VMQ, PVMQ, and FVMQ, and can be formulated to meet specific requirements like FDA compliance, USP Class VI certification, and ISO 10993-5 compliance. They can be produced through peroxide-curing or platinum-curing processes and are available in a wide range of durometers and colors.

Pros:
– Excellent heat, ozone, and corona resistance
– Good dielectric stability and resistance to many oils, chemicals, and solvents
– Retains flexibility at low temperatures and has a wide working temperature range…
– Non-toxic and biocompatible, making them suitable for medical, food, and beverag…
– Excellent weather resistance to UV light, water, oxygen, and moisture
– Can be formulated to be electrically conductive or insulating
– Resists fungal and biological attack

Cons:
– Low tensile strength and low wear and tear resistance
– Not recommended for dynamic sealing operations and should only be used for stati…
– Does not perform well in concentrated acids and alkalis, steam over 120°C (248°F…
– Requires lubrication to work correctly in some applications

Top 10 Viton O-ring Manufacturers and Suppliers in China …

Product Details: Viton® O-Rings are made from fluorocarbon materials, specifically fluoroelastomers (FKM), known for their excellent chemical and temperature resistance. They are available in various types such as A, B, F, GLT, and GFLT, each with different fluorine content and properties. Standard temperature range is -20°F to 400°F (-29°C to 204°C), with a standard hardness of 70-75 Shore A. They are widely used in chemical, aerospace, automotive, and industrial applications.

Pros:
– Excellent resistance to acids, fuels, mineral and vegetable oils, and many organ…
– High heat resistance with situational service life above 200°C.
– Good to excellent dynamic and set resistance, tensile strength, and abrasion res…
– Low gas permeability and low compression set.
– Available in various formulations to meet specific application needs, including…

Cons:
– Not recommended for use with steam, amines, or polar solvents.
– Fair to good resistance to water and steam.
– Fair cold resistance.
– Fair electrical properties.
– Tear resistance is fair to good.

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

Product Details: Savvy manufactures a wide range of o-rings made from various materials including rubber, metal, and other materials. The most commonly used materials are NBR, FKM (Viton), and Silicone. NBR is widely used due to its good properties and low cost. FKM/Viton offers the best comprehensive performance and is used in high-standard sealing equipment. Silicone is often used in medical and food industries due to its FDA compliance, tastelessness, non-toxicity, and resistance to high temperatures and severe cold. The temperature range for these materials varies: -70°C to 220°C for Silicone, and different ranges for other materials. The hardness of o-rings is

measured in Shore A, typically ranging from 40 to 90, with 60-70 being the most common. O-rings can be produced in various colors, and custom colors are available but may increase cost and require a larger MOQ.

Pros:
– Good property and low cost for NBR o-rings
– Best comprehensive performance for FKM/Viton o-rings
– FDA compliance, tasteless, and non-toxic for Silicone o-rings
– High temperature and severe cold resistance for Silicone o-rings
– Wide range of materials available for different applications
– Custom o-rings can be made at low mold/tooling cost and fast delivery
– Various colors available, including custom colors

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

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 both dynamic and static applications[3][4] – Low off-gassing and extractable levels, making them suitable for clean and sensi…
– High thermal, oxidative, and chemical stability due to carbon-fluorine bonds[3]

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

China Supplier High Temperature Rubber O Rings For Sale

High Temp O Rings

Product Details: High-temperature O-rings are designed to operate effectively in extreme temperature conditions. They are made from various materials such as Viton®, Silicone, HNBR, PTFE, and FFKM, each with its own temperature range and application suitability. For example, Viton® O-rings can withstand temperatures up to 400°F, while FFKM O-rings can handle temperatures from -40°C to 330°C. These O-rings are used in industries like aerospace, chemical processing, oil and gas, and life sciences where reliable sealing is crucial under harsh conditions.

Pros:
– High temperature resistance, with some materials able to withstand temperatures…
– Chemical and solvent resistance, making them suitable for use in harsh environme…
– Available in various materials to meet specific application requirements.
– Can be used in both static and dynamic sealing applications.
– High purity and cleanliness options available for clean room and food processing…

Cons:
– Higher cost compared to standard O-rings due to the specialized materials used.
– Limited flexibility in some high-temperature materials, which can affect sealing…
– May require special handling and storage to maintain their properties.
– Can be more challenging to install and remove due to their hardness and rigidity…

2022 China New Design Heat Resistant O Ring – High quality …

Product Details: Heat-resistant O-rings are designed to withstand high temperatures, often used in applications such as automotive, aerospace, and industrial equipment. They are typically made from materials like fluorocarbon (Viton/FKM), fluorosilicone (FVMQ), and silicone (VMQ). These materials can handle temperatures up to 400°F (200°C) or higher, depending on the specific type. The O-rings are available in various sizes, including standard and custom dimensions, and can be used in both static and dynamic sealing applications.

Pros:
– High temperature resistance, with some materials able to withstand temperatures…
– Excellent sealing performance in both static and dynamic applications.
– Available in various materials to suit different media and application requireme…
– Can be customized to fit specific dimensions and needs.

Cons:
– May be more expensive than O-rings made from other materials.
– Can be prone to compression set and loss of elasticity if exposed to temperature…
– Require careful selection based on the specific application conditions, includin…

Comparison Table

Frequently Asked Questions (FAQs)

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

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

High heat O-rings in Chinese factories are often made from materials like Viton (FKM), silicone, and fluorinated ethylene propylene (FEP). Viton is renowned for its excellent resistance to high temperatures, ozone, and various chemicals. Silicone is popular for its durability in both high and low temperatures, while FEP offers exceptional chemical resistance and a wide temperature range.

What are the typical applications of high heat O-rings produced in China?

High heat O-rings from Chinese factories are used in a variety of industries, including aerospace, automotive, chemical processing, petroleum refining, and heavy-duty equipment. They are also common in fuel system sealing applications and other environments where high temperature and chemical resistance are crucial.

Can I customize the O-rings according to my specific needs?

Yes, you can customize O-rings to fit your specific requirements. Many Chinese manufacturers, such as Dongguan Hongju Silicone Rubber Products Co., Ltd. and Xiamen Flying Silicone Rubber Co., Ltd., offer OEM and ODM services. They can produce O-rings in various sizes, shapes, and materials based on your design drawings and specifications.

What certifications and standards do high heat O-ring manufacturers in China adhere to?

High heat O-ring manufacturers in China often adhere to international standards such as ISO 3601, BS 4528, and AS 568. Additionally, some manufacturers ensure their products are FDA-approved and compliant with USP Class VI, especially for applications in food processing and medical equipment.

How do I ensure the quality and reliability of the O-rings I purchase from Chinese manufacturers?

To ensure the quality and reliability of the O-rings, look for manufacturers with verified business licenses and those that provide free samples for testing. Companies like DMS Seals Technology Co., Limited and YOSON Seals test their products under various conditions before delivery. Also, check for certifications and read reviews or ask for references from other customers.