The AS568 standard, a crucial benchmark for O-ring sizes, plays a significant role in various industries, including aerospace, automotive, and manufacturing. Understanding this standard is essential for engineers, designers, and quality control professionals who rely on precise specifications to ensure product reliability and performance.
In this guide, readers will explore the intricacies of the AS568 standard as it applies in China. We will delve into its history, significance, and the implications for local manufacturing practices.
Additionally, the guide will cover practical applications, compliance requirements, and best practices for implementing the AS568 standard in design and production processes. By the end, readers will be equipped with the knowledge to effectively utilize this standard in their projects.
A Comprehensive Guide to AS568 Standard O-Rings in China
Introduction
The AS568 standard is a widely recognized specification for O-rings, particularly in the aerospace and automotive industries. In China, manufacturers like those found on www.rubberplasticparts.com are producing customized AS568 standard O-rings to meet diverse industrial needs. This guide will delve into the technical features, types, and applications of AS568 standard O-rings, providing a thorough understanding of their significance in various sectors.
Technical Features of AS568 Standard O-Rings
AS568 standard O-rings are characterized by specific dimensions and material properties that make them suitable for various applications. Below is a comparison table highlighting the key technical features of these O-rings.
| Feature | Description |
|---|---|
| Material | Common materials include EPDM, NBR, FKM, and silicone, each offering unique properties. |
| Hardness | Typically ranges from 50 to 90 Shore A, affecting flexibility and sealing capability. |
| Temperature Range | Can withstand temperatures from -40°C to +200°C, depending on the material used. |
| Cross-Section Sizes | Available in various cross-section sizes, typically ranging from 0.070 in. to 0.275 in. |
| Compression Ratio | Recommended compression ratios vary based on application, generally between 5% to 30%. |
| Gland Fill | Ideal gland fill percentages range from 50% to 90%, ensuring effective sealing. |
Types of AS568 Standard O-Rings
AS568 standard O-rings come in various types, each designed for specific applications and environments. The following table outlines the different types of O-rings and their characteristics.
| Type | Description |
|---|---|
| Piston-Type Seals | Used in hydraulic cylinders, designed to withstand high pressure and provide a tight seal. |
| Rod-Type Seals | Commonly found in hydraulic rods, these seals prevent fluid leakage and maintain pressure. |
| Face-Type Seals | Used in applications where two surfaces are in contact, providing a seal against external contaminants. |
| Backup O-Rings | Prevent extrusion of the primary O-ring in high-pressure applications, enhancing durability. |
| Custom O-Rings | Tailored to specific dimensions and materials based on unique application requirements. |
Applications of AS568 Standard O-Rings
AS568 standard O-rings are utilized across various industries, including aerospace, automotive, healthcare, and construction. Their versatility and reliability make them essential components in sealing applications. For instance, in the aerospace sector, O-rings are critical for ensuring the integrity of fuel systems and hydraulic circuits. In automotive applications, they are used in engines and transmission systems to prevent fluid leaks.
Conclusion
The AS568 standard O-rings play a vital role in numerous industrial applications, providing effective sealing solutions that enhance performance and reliability. Manufacturers in China, such as those on www.rubberplasticparts.com, offer a wide range of customized options to meet specific needs. Understanding the technical features and types of these O-rings is essential for selecting the right product for any application.
FAQs
1. What materials are commonly used for AS568 standard O-rings?
AS568 standard O-rings are typically made from materials like EPDM, NBR, FKM, and silicone, each offering different properties suited for various applications.
2. What is the temperature range for AS568 standard O-rings?
These O-rings can generally withstand temperatures ranging from -40°C to +200°C, depending on the material used.
3. How do I determine the correct size for an O-ring?
The correct size can be determined by measuring the inner diameter and cross-section of the groove where the O-ring will be installed, ensuring it meets the AS568 specifications.
4. What is the purpose of backup O-rings?
Backup O-rings are used to prevent the primary O-ring from extruding in high-pressure applications, thereby enhancing the overall durability and effectiveness of the sealing system.
5. Where can I find customized AS568 standard O-rings in China?
You can find customized AS568 standard O-rings from manufacturers listed on websites like www.rubberplasticparts.com and www.fst.com, which offer a variety of options tailored to specific needs.