Metal flanges play a crucial role in various industries, serving as essential components for connecting pipes, valves, and equipment. In China, the production and application of metal flanges have seen significant growth, driven by the country’s expanding industrial landscape. Understanding the intricacies of metal flanges is vital for engineers, manufacturers, and procurement professionals alike.

This guide will delve into the types, materials, and manufacturing processes of metal flanges in China. Readers can expect to gain insights into industry standards, quality control measures, and the latest technological advancements. Additionally, we will explore market trends and the implications for global supply chains, providing a comprehensive overview of this critical component in modern engineering.

Comprehensive Guide to Metal Flanges in China

Metal flanges are essential components in various industrial applications, serving as connectors between pipes, valves, and other equipment. In China, several manufacturers specialize in producing high-quality flanges, including stainless steel and carbon steel options. This guide will explore the different types of flanges, their technical features, and the leading manufacturers in the industry, such as Boyang Flanges, Zhongnuo Steel Flange, Octal Flange, Younglee Metal Flange, and Landee Flange.

Understanding Metal Flanges

Flanges are mechanical components that provide a means of connecting two sections of pipe or other equipment. They are typically made from materials like stainless steel, carbon steel, or alloy steel, depending on the application requirements. Flanges come in various shapes and sizes, designed to meet specific industry standards.

Technical Features of Metal Flanges

When selecting flanges, it is crucial to consider their technical features. Below is a comparison table highlighting the key technical specifications of metal flanges:

Feature	Description
Material	Common materials include stainless steel (ASTM A182) and carbon steel (ASTM A105).
Standards	Flanges are manufactured according to ANSI, ASME, DIN, and other international standards.
Pressure Rating	Flanges are rated for different pressure levels, typically ranging from 150 to 2500 psi.
Temperature Range	Flanges can withstand temperatures from -50°C to 600°C, depending on the material.
Finish	Common finishes include polished, galvanized, and painted for corrosion resistance.
Size Range	Flanges are available in various sizes, from 1 inch to over 48 inches in diameter.

Types of Metal Flanges

Flanges come in various types, each designed for specific applications. Below is a comparison table of the most common types of flanges:

Type	Description
Weld Neck Flange	Designed for high-pressure applications, providing a strong weld connection.
Slip-On Flange	Slides over the pipe, easy to install, and suitable for low-pressure applications.
Blind Flange	Used to seal the end of a pipe, preventing flow.
Socket Weld Flange	Designed for small-diameter pipes, providing a strong connection.
Threaded Flange	Features internal threads for easy installation without welding.
Lap Joint Flange	Used with a stub end, allowing for easy alignment and disassembly.

Leading Flange Manufacturers in China

Boyang Flanges (boyangflanges.com)

Boyang Flanges is a prominent manufacturer specializing in stainless steel flanges. They offer a wide range of products, including blind flanges, weld neck flanges, and more. With a commitment to quality and customer satisfaction, Boyang maintains a robust inventory for quick delivery.

Zhongnuo Steel Flange (www.znsteelflange.com)

Zhongnuo Steel Flange has over 20 years of experience in manufacturing carbon steel flanges. They produce flanges according to various international standards, ensuring high quality and competitive pricing. Their extensive product line includes slip-on flanges, weld neck flanges, and threaded flanges.

Octal Flange (www.octalflange.com)

Octal Flange focuses on providing a comprehensive range of forged steel flanges. They are known for their prompt service and large inventory, allowing for quick turnaround times. Their products include stainless steel and carbon steel flanges, catering to diverse industrial needs.

Younglee Metal Flange (flanges-pipe.com)

Younglee Metal Flange has established itself as a leading manufacturer of hydraulic flanges. With nearly 30 years of experience, they produce a full range of hydraulic flanges, including SAE flanges and square flanges. Their commitment to quality and customer service has earned them a strong reputation in the industry.

Landee Flange (www.landeeflange.com)

Landee Flange is a well-known manufacturer of industrial flanges in China. They offer a variety of flanges, including blind flanges, lap joint flanges, and weld neck flanges. Landee is recognized for its competitive pricing and high-quality products, making it a reliable partner for many industries.

Conclusion

Metal flanges play a crucial role in various industrial applications, providing reliable connections between pipes and equipment. With numerous manufacturers in China, such as Boyang Flanges, Zhongnuo Steel Flange, Octal Flange, Younglee Metal Flange, and Landee Flange, businesses can find high-quality flanges that meet their specific needs. Understanding the different types and technical features of flanges is essential for making informed purchasing decisions.

FAQs

1. What are the main types of metal flanges?
The main types of metal flanges include weld neck flanges, slip-on flanges, blind flanges, socket weld flanges, threaded flanges, and lap joint flanges.

2. What materials are commonly used for flanges?
Flanges are typically made from stainless steel, carbon steel, and alloy steel, depending on the application requirements.

3. How do I choose the right flange for my application?
Consider factors such as pressure rating, temperature range, material compatibility, and the specific type of connection required for your application.

4. Where can I find reliable flange manufacturers in China?
Some reliable flange manufacturers in China include Boyang Flanges, Zhongnuo Steel Flange, Octal Flange, Younglee Metal Flange, and Landee Flange.

5. What standards do flanges adhere to?
Flanges are manufactured according to various international standards, including ANSI, ASME, DIN, and others, ensuring compatibility and quality.