Oil-Resistant NBR O-Rings as-211/20.22*3.53/as-568 for Hydraulic and Pneumatic Systems

• Customization: Available
• Material: Customized
• Application: Multipurpose Use
• Model NO.: AS-211/20.22*3.53/AS-568
• Type: Stationary Seal
• Performance: High Pressure
• Shape: Standard and Customized
• Standard: Standard
• Color: Customized Color
• OEM/ODM: Yes
• Size: Customized Size
• Operational Temperature Range: -20~+220ºC
• Transport Package: Standard Packing
• Specification: Customized
• Trademark: DZD
• Origin: China
• Package Size: 6.00cm * 6.00cm * 6.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Custom High Precision O Ring Seals - NBR Seal Tailored for Versatile Applications AS-211/20.22*3.53/AS-568/NBR

Our Custom High Precision O Ring Seals exemplify superior craftsmanship, utilizing premium NBR (Nitrile Butadiene Rubber) to deliver unmatched quality and durability in this model. These O ring seals boast meticulous precision in their production, guaranteeing exceptional performance and reliability across a spectrum of applications. Engineered to meet stringent demands, they feature specific dimensions of 20.22*3.53 according to the AS-211 standard, while also adhering to the AS-568 standard. Additionally, the FKM-90 variant offers flexibility for diverse usage scenarios. The NBR material excels in resisting oil, fuel, and common chemicals, making it an ideal choice for a broad array of industrial and mechanical environments.

Specification

Material	Nitrile Butadiene Rubber (NBR)	Fluororubber (FKM)
Color	Red, Black, Blue, etc. Customized
Size	Standard&Customized
Density	Typically 0.95-1.25 g/cm³, depending on filler content (common grades: ~1.0-1.1 g/cm³).	Usually 1.8-2.0 g/cm³  (high density due to fluorine content).
Hardness	Typically 40 - 90 Shore A, with common industrial grades at 60 - 80 Shore A	Usually 50 - 90 Shore A, with high - performance grades often at 70 - 85 Shore A.
Temperature	-40°C to +100°C (-40°F to +212°F)	-20°C to +200°C (-4°F to +392°F)
Tolerance	Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm	Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm
Advantages	1. Excellent resistance to mineral oils, fuels, and hydraulic fluids. 2.Good mechanical strength and abrasion resistance. 3.Cost-effective and widely available. 4.Versatile for moderate temperature applications (-40°C to +120°C).	1.Exceptional resistance to high temperatures (+200°C, up to +230°C for premium grades). 2.Outstanding chemical resistance to acids, solvents, and fuels. 3.High durability in aggressive environments (e.g., chemicals, aerospace). 4.Long service life in harsh conditions.
Application	Hydraulic systems; Fuel systems; Automotive engines; Oil pumps; Other general industrial; equipment with oil-based media.	High-temperature environments; Automotive engines; Turbochargers, gaskets; Chemical processing plants; Aerospace seals; Applications of aggressive chemicals or fuels.
Storage& Maintenance	1. Regular Inspection: Periodically check the O-ring for signs of wear, such as abrasion on the surface, and aging, which may present as cracking, hardening, or discoloration.  2. Timely Replacement: Replace O-rings immediately if they are damaged, deformed, or show signs of aging. A defective O-ring can no longer ensure proper sealing performance. 3. Exposure Avoidance: Prevent O-rings from being exposed to harsh environments for extended periods.

Applications

1. Automotive Industry: Ideal for enhancing the performance of automotive engines, fuel systems, and transmission systems.

2. Industrial Machinery: Perfect for hydraulic presses, pumps, and compressors, ensuring longevity and efficiency.

3. Aerospace Field: Specifically designed for use in fuel tanks and hydraulic actuators.
4. Plumbing and Water Systems: Reliable performance in faucets, valves, and pipe joints for optimal water flow control.

Key Configurations

Material:

NBR (Nitrile Butadiene Rubber)
FKM-90 (Fluorocarbon Rubber)
Standards Compliance:

AS-112
AS-568
Precision Level:

Meticulously crafted with an ID precision of ±0.1 mm or ±0.004 inches for smaller sizes, with the CSD tolerance finely balanced at ±0.05 mm or ±0.002 inches for common sizes.

Application Photos

After Sales Service

Standard Warranty: Enjoy peace of mind with our comprehensive 12-month warranty.

Timely Response and Technical Support: Our dedicated 24/7 customer service hotline ensures that assistance is always just a call away.

On-site Maintenance and Repair: Should remote resolutions fall short, our skilled after-sales team is ready to deploy technicians equipped with professional tools and spare parts directly to your location.

Regular Follow-up and Customer Feedback Collection: To ensure seamless operation and satisfaction, we conduct regular follow-ups post-resolution and actively collect feedback for continuous product and service enhancements, thereby elevating your overall experience.

Company Profile

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd.

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd. stands as a premier Chinese manufacturer in the realm of O-ring seal rubber products, boasting over 16 years of profound expertise. With ISO 9001 and CE certifications, our reach extends to over 50 countries, delivering reliable products and services fortified by R&D innovation and stringent quality control processes.

Why Choose Us?

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FAQ

Q: What's the lead time for orders?
A: For our standard models, we ensure a swift dispatch within 15 to 30 days to meet your needs promptly. If you're opting for customized units, please allow us 30 to 45 days to deliver a product tailored to your exact specifications.

Q: Do you provide after-sales service overseas?
A: Yes, indeed! We have established partnerships with service centers strategically located in key regions worldwide, ensuring top-notch after-sales support no matter where you are.

Q: Can I request a customized bucket size?
A: Absolutely! We excel in providing tailored attachments to perfectly fit your unique requirements. Let us know your specifications, and we'll customize the bucket size just for you.

Q: What documents do you provide for export?
A: We provide a comprehensive export package to streamline your logistics process. This includes essential documents such as the Commercial Invoice, Packing List, Bill of Lading, and COC, among others, ensuring smooth and efficient exportation.

Q: How do I place an order?
A: The ordering process is straightforward and customer-friendly. Simply reach out to us via email or phone to receive a detailed quote. Once you're satisfied, confirm your order with a Purchase Order (PO), and we'll take it from there.