20.22*3.53 NBR O Ring Seal - Custom Size and Color Options

• 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 for Diverse Applications AS-211/20.22*3.53/AS-568/NBR

Our Custom High Precision O Ring Seals are crafted with top-notch quality materials, specifically featuring NBR (Nitrile Butadiene Rubber) for this particular model. The precision in manufacturing these O ring seals is of the highest standard, ensuring excellent performance and reliability. They are designed to meet the exacting requirements of diverse applications. With specific dimensions of 20.22*3.53 as per the AS-211 standard and conforming to the AS-568 standard, these seals are also available in FKM-90 variant for different usage scenarios. The NBR material offers good resistance to oil, fuel, and other common chemicals, making it a versatile choice for a wide range of industrial and mechanical settings.

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 automotive engines, fuel systems, and transmission systems

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

3. Aerospace Field: Suitable for fuel tanks and hydraulic actuators.
4. Plumbing and Water Systems: Essential for faucets, valves, and pipe joints

Key Configurations

Material:

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

AS-112
AS-568
Precision Level:

ID precision of ±0.1 mm or ±0.004 inches for smaller sizes. Common size CSD tolerances allow for variations around ±0.05 mm or ±0.002 inches.

Application Photos

After Sales Service

Standard Warranty: 12 months

Timely Response and Technical Support: Our 24/7 customer service hotline ensures immediate assistance.

On-site Maintenance and Repair: For issues not resolved remotely, our after-sales team promptly dispatches skilled technicians with professional tools and spare parts directly to the customer's location.

Regular Follow-up and Customer Feedback Collection: Post-resolution, we engage in regular follow-ups to ensure product efficacy and customer satisfaction. We actively gather client feedback and suggestions, utilizing them to refine our products and services, thus enhancing the overall customer 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 of O-ring seal rubber products, boasting over 16 years of industry expertise. With certifications like ISO 9001 and CE, we proudly export to over 50 countries, offering dependable products and services driven by R&D innovation and stringent quality control.

Why Choose Us?

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FAQ

Q: What's the lead time for orders?
A: Standard models are dispatched within 15–30 days, while tailored units require 30–45 days for delivery.

Q: Do you provide after-sales service overseas?
A: Yes, indeed! We have established partnerships with service centers strategically located in key regions around the globe, ensuring seamless support wherever you are.

Q: Can I request a customized bucket size?
A: Absolutely! We pride ourselves on offering highly customizable solutions, including specially tailored attachments to meet your unique requirements.

Q: What documents do you provide for export?
A: We provide a comprehensive export documentation package, including the Commercial Invoice, Packing List, Bill of Lading, Certificate of Conformity (COC), and more, to ensure a smooth export process.

Q: How do I place an order?
A: Simply contact our team via email or phone to receive a detailed quote. Once you are satisfied, confirm your purchase with a Purchase Order (PO) for efficient processing.