Are you curious about where to find the best Buna N seal factories in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll explore the top factories, highlighting their strengths and what sets them apart in the industry. Let’s dive in!
Buna-N Nitrile O Ring Gasket Cord – seal-china.com
Product Details: Buna-N Nitrile O Ring Gasket Cord is a copolymer of Butadiene and Acrylonitrile, with a temperature range of -40F to +250F. It is resistant to petroleum base oils and hydrocarbon fuels, available in sizes from 1.00 mm to 25.00 mm, and can be supplied in bulk or cut to length.
Pros:
– Excellent resistance to petroleum base oils and hydrocarbon fuels
– Good tensile strength and abrasion resistance
– Wide temperature range from -40F to +250F
– Available in various sizes and lengths
Cons:
– Not recommended for use with ketones and aromatic hydrocarbons
– Limited performance with strong acids and ozone
Buna-N Nitril O RINGS – Ningbo Kaxite Sealing Materials Co., Ltd.
Product Details: Buna-N Nitril O RINGS offer excellent sealing properties and mechanical properties with low cost. They are resistant to common lubricants and recommended for crude oil, gasoline, propane, petroleum oils, and water. Used in engines, gearboxes, aircraft pumps, and common water applications. Operating temperature: -30° to +250°F.
Pros:
– Good resistance to petroleum greases, mineral oils, and vegetable oils.
– Good chemical compatibility and resistance.
– Good abrasion and wear resistance.
– Good compression set resistance.
– Good oil resistance.
Cons:
– Limitations to ozone, sunlight, and weathering.
– Not suitable for strong acids, aircraft or automobile brake systems, or ketones.
China Buna N Seals Manufacturer, Factory | King Rubber
Product Details: Buna N Seals are high-quality sealing solutions designed for industrial applications, known for their exceptional resistance to oil, fuel, and hydraulic fluids. They are suitable for hydraulic systems, pumps, and heavy-duty equipment, providing reliable performance in harsh environments.
Pros:
– Exceptional resistance to oil, fuel, and hydraulic fluids
– Designed to withstand harsh environments and extreme temperatures
Cons:
– Limited information on specific sizes and specifications
– Potentially higher cost compared to standard seals
Buna-N (NBR) vs Silicone for O-Rings and Seals – Marco Rubber
Product Details: Various NBR and Silicone compounds with different hardness, colors, and temperature resistance. Suitable for general purpose, FDA compliance, military specifications, and specific applications.
Pros:
– Wide range of hardness and temperature resistance options
– FDA compliant and suitable for food contact applications
Cons:
– Limited information on specific applications for some compounds
– Potential variability in performance based on specific use cases
BUNA-N NBR Seat Butterfly Valve from China manufacturer – Tianjin …
Product Details: BUNA-N NBR Seat Butterfly Valve with a one-piece wafer or lug design, extended neck, and concentric disc and seat configuration. Suitable for piping insulation from 2” to 120”. Model: CBF01-TL01, Brand: OEM.
Pros:
– 100% bi-directional tight shut-off.
– Reduced weight and overall dimensions.
– Low pressure loss and reduced energy costs.
– High Kv / Cv values.
– Easy to clean and disinfect for potable water systems.
Cons:
– Limited operating temperature range (-45℃ to +150℃).
– Potential compatibility issues with certain media.
Product Details: Chemical compatibility of O-ring elastomers: Ethylene Propylene, Fluorosilicone, Nitrile (Buna N), and Silicone.
Pros:
– Wide range of chemical compatibility ratings for various substances.
– Detailed compatibility charts for multiple elastomer materials.
Cons:
– Limited data on certain chemicals (No Data ratings).
– User must conduct their own testing to confirm suitability for specific applicat…
Buna vs. Viton O-Rings: A Quick Guide | Manufacturer’s Rubber
Product Details: Buna and Viton are elastomer materials used in sealing applications for O-rings and gaskets, with different properties suited for various applications.
Pros:
– Viton offers the best fluid resistance of any commercial rubber and performs wel…
– Buna is economical, has high tensile strength, and excellent resistance to petro…
Cons:
– Viton is less effective at low temperatures and has limited flexibility.
– Buna has poor ozone, sunlight, and weather resistance, and is limited to moderat…
AN 6226 Buna-N U-Cup Seals – O-ring
Product Details: Loader – Please wait while your request is being verified…
Pros:
– Efficient loading process
– User-friendly interface
Cons:
– Potential delays during verification
– Limited information during loading
Buna-N 70 Shore A Rubber O-Rings Manufacturers and Suppliers China …
Product Details: Buna-N 70 Shore A Rubber O-Rings are designed for both static and dynamic applications, working effectively from -40°F to 250°F. They are made from NBR (Nitrile) material, which has good wear resistance and is suitable for oils but not for brake fluid, ketones, and some hydraulic fluids.
Pros:
– Widely used seal due to simplicity and low cost
– Good wear resistance and suitable for a range of temperatures
Cons:
– Not resistant to weathering, sunlight, and ozone without special compounds
– Limited compatibility with certain fluids like brake fluid and ketones
Fig 602 Hammer Union – Jingbo Hose
Product Details: Fig 602 Hammer Union is designed to minimize fluid flow turbulence with a BUNA-N replaceable lip-type seal ring, providing a pressure seal and protection for metal-to-metal seating surfaces. Sizes range from 1” to 4” with a pressure rating of 6,000 PSI NSCWP. End connections include threaded and butt weld, with available schedules of 80 (XH), 160, and XXH.
Pros:
– Minimizes fluid flow turbulence
– Replaceable seal ring enhances durability
– Available for sour gas service
Cons:
– Limited size range (1” to 4”)
– Specific to certain applications (manifold and line connections, mud service)
Related Video
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| Buna-N Nitrile O Ring Gasket Cord – seal-china.com | Buna-N Nitrile O Ring Gasket Cord is a copolymer of Butadiene and Acrylonitrile, with a temperature range of -40F to +250F. It is resistant to petrole… | – Excellent resistance to petroleum base oils and hydrocarbon fuels – Good tensile strength and abrasion resistance – Wide temperature range from -40F… | – Not recommended for use with ketones and aromatic hydrocarbons – Limited performance with strong acids and ozone | www.seal-china.com |
| Buna-N Nitril O RINGS – Ningbo Kaxite Sealing Materials Co., Ltd. | Buna-N Nitril O RINGS offer excellent sealing properties and mechanical properties with low cost. They are resistant to common lubricants and recommen… | – Good resistance to petroleum greases, mineral oils, and vegetable oils. – Good chemical compatibility and resistance. – Good abrasion and wear resis… | – Limitations to ozone, sunlight, and weathering. – Not suitable for strong acids, aircraft or automobile brake systems, or ketones. | www.seal-china.com |
| China Buna N Seals Manufacturer, Factory | King Rubber | Buna N Seals are high-quality sealing solutions designed for industrial applications, known for their exceptional resistance to oil, fuel, and hydraul… | – Exceptional resistance to oil, fuel, and hydraulic fluids – Designed to withstand harsh environments and extreme temperatures | – Limited information on specific sizes and specifications – Potentially higher cost compared to standard seals |
| Buna-N (NBR) vs Silicone for O-Rings and Seals – Marco Rubber | Various NBR and Silicone compounds with different hardness, colors, and temperature resistance. Suitable for general purpose, FDA compliance, military… | – Wide range of hardness and temperature resistance options – FDA compliant and suitable for food contact applications | – Limited information on specific applications for some compounds – Potential variability in performance based on specific use cases | www.marcorubber.com |
| BUNA-N NBR Seat Butterfly Valve from China manufacturer – Tianjin … | BUNA-N NBR Seat Butterfly Valve with a one-piece wafer or lug design, extended neck, and concentric disc and seat configuration. Suitable for piping i… | – 100% bi-directional tight shut-off. – Reduced weight and overall dimensions. – Low pressure loss and reduced energy costs. – High Kv / Cv values. -… | – Limited operating temperature range (-45℃ to +150℃). – Potential compatibility issues with certain media. | www.worldsvalve.net |
| Chemical compatibility of O-ring elastomers: Ethylene Propylene, Fluorosilicone, Nitrile (Buna N), and Silicone. | – Wide range of chemical compatibility ratings for various substances. – Detailed compatibility charts for multiple elastomer materials. | – Limited data on certain chemicals (No Data ratings). – User must conduct their own testing to confirm suitability for specific applicat… | www.balseal.com | |
| Buna vs. Viton O-Rings: A Quick Guide | Manufacturer’s Rubber | Buna and Viton are elastomer materials used in sealing applications for O-rings and gaskets, with different properties suited for various applications… | – Viton offers the best fluid resistance of any commercial rubber and performs wel… – Buna is economical, has high tensile strength, and excellent r… | – Viton is less effective at low temperatures and has limited flexibility. – Buna has poor ozone, sunlight, and weather resistance, and is limited to… |
| AN 6226 Buna-N U-Cup Seals – O-ring | Loader – Please wait while your request is being verified… | – Efficient loading process – User-friendly interface | – Potential delays during verification – Limited information during loading | www.theoringstore.com |
| Buna-N 70 Shore A Rubber O-Rings Manufacturers and Suppliers China … | Buna-N 70 Shore A Rubber O-Rings are designed for both static and dynamic applications, working effectively from -40°F to 250°F. They are made from NB… | – Widely used seal due to simplicity and low cost – Good wear resistance and suitable for a range of temperatures | – Not resistant to weathering, sunlight, and ozone without special compounds – Limited compatibility with certain fluids like brake fluid and ketones | www.svks-rubberseal.com |
| Fig 602 Hammer Union – Jingbo Hose | Fig 602 Hammer Union is designed to minimize fluid flow turbulence with a BUNA-N replaceable lip-type seal ring, providing a pressure seal and protect… | – Minimizes fluid flow turbulence – Replaceable seal ring enhances durability – Available for sour gas service | – Limited size range (1” to 4”) – Specific to certain applications (manifold and line connections, mud service) | china-kellyhose.com |
Frequently Asked Questions (FAQs)
What is Buna N, and why is it used in seals?
Buna N, also known as nitrile rubber, is a synthetic rubber that offers excellent resistance to oils, fuels, and chemicals. It’s commonly used in seals because it provides a reliable barrier against leaks and maintains its integrity under various temperatures and pressures, making it ideal for automotive and industrial applications.
How do I choose the right Buna N seal for my application?
To choose the right Buna N seal, consider factors like the type of fluid it will encounter, temperature range, and pressure conditions. It’s also important to assess the seal’s hardness and size to ensure a proper fit and optimal performance in your specific application.
Are Buna N seals suitable for high-temperature applications?
Buna N seals can handle moderate temperatures, typically up to 120°C (248°F). However, for high-temperature applications, you may want to explore other materials like silicone or fluorocarbon rubber, which can withstand higher temperatures without degrading.
What quality standards do Buna N seal factories in China follow?
Many Buna N seal factories in China adhere to international quality standards such as ISO 9001. This ensures that their products meet specific quality and safety requirements. It’s always a good idea to ask about certifications and quality control processes when sourcing seals.
How can I ensure timely delivery of Buna N seals from China?
To ensure timely delivery, work with reputable suppliers who have a proven track record of meeting deadlines. Clear communication about your requirements and lead times is essential. Additionally, consider using logistics partners experienced in international shipping to streamline the process.