Tianjin Delan International Co., Ltd: Your Professional Flange Manufacturer

 

Our company regards quality as life, starts from the source of production, strictly controls the quality in every link from raw material screening to product listing, and provides customers with first-class products. The company's main products include pipe fitting, elbow pipe, tee pipe, halfen channel, grille, flange, etc.

 

 
  • Wn Flange
    Our butt - weld flanges are the epitome of reliability and durability in the world of piping systems.
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  • So Flange
    Our slip - on weld flanges are an excellent choice for various piping systems, offering a blend of practicality and economy.
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  • Socket-welding Flange
    Our slip - on weld flanges are an excellent choice for various piping systems, offering a blend of practicality and economy.
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  • Threaded Flange
    Threaded Flanges: Convenient and Reliable Pipe Connectivity Our threaded flanges are a practical solution for pipe connections, offering a blend of convenience and durability.
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  • Lapped Joint Flange
    Loose Flanges: Flexible and Cost - Effective Pipe Connection Solution Our loose flanges are a versatile addition to any piping system, offering a combination of flexibility and cost - efficiency.
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  • Reducing Flange
    Reducing Flanges: Seamless Transitions for Piping Systems Our reducing flanges are precision - engineered components, designed to connect pipes of different diameters with ease and reliability.
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  • Blind Flange
    Our flange covers are essential components for maintaining the integrity of your piping systems.
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Why choose us

 

 

Professional team

Our team is composed of experienced professionals who are dedicated to innovation and customer satisfaction. Our engineers and technicians continuously research and develop new products and solutions to stay ahead of industry trends.

 

High quality

Our embedded channels are designed to meet the highest standards of precision and reliability. They are widely used in construction, infrastructure, and industrial applications to provide secure and efficient support for various installations.

 

Customized services

In addition to our core products, we also offer a variety of metal components tailored to meet the specific needs of our customers. Our expertise in metal fabrication allows us to deliver customized solutions that enhance the functionality and durability of any project.

 

 

Benefits of Flange

 

 
 

Strong and secure connection

Flanged joints offer a sturdy and dependable connection between pipes or components. The use of bolts and flanges ensures a robust joint that can withstand high pressure and stress.

 
 

Leak resistance

The raised rims or lips of flanges create a tight seal when bolted together, minimizing the risk of leaks. This is especially important when dealing with fluids or gases under pressure, ensuring efficient and safe fluid transportation.

 
 

Easy installation and maintenance

Flanged joints allow for straightforward installation and disassembly, making maintenance, repairs, and component replacement easier. This convenience reduces downtime and improves overall operational efficiency.

 
 

Alignment flexibility

Flanged joints provide flexibility in aligning pipes or equipment during installation. They can be adjusted or rotated to ensure precise alignment, even when dealing with misaligned or non-uniform components.

 
 

Compatibility and standardization

Flanged joints adhere to standardized dimensions and designs, ensuring compatibility between pipes and components from different manufacturers. This interchangeability simplifies system integration and the replacement of parts.

 
 

Thermal expansion accommodation

Flanged joints can accommodate thermal expansion and contraction in piping systems. They allow for slight movements without compromising the integrity of the joint, reducing the risk of stress-related failures.

 
 

Versatility

Flanged joints are suitable for a wide range of applications and industries, including plumbing, oil and gas, and chemical processing. They can handle various fluids, pressures, and temperatures, making them highly versatile.

 
 

Longevity and durability

Properly installed and maintained flanged joints offer long-lasting durability. They are designed to withstand challenging environmental conditions, corrosion, and wear, providing a reliable and extended service life.

Application of Flange
Lapped Joint Flange
Blind Flange
Reducing Flange
Socket-welding Flange

Oil and gas industry
Flanges are commonly used in oil and gas pipelines to connect pipes, valves, and other equipment. They are suitable for use in high-pressure and high-temperature environments and can withstand corrosive fluids.

 

Chemical processing industry
Flanges are widely used in the chemical processing industry to connect pipes, tanks, and other equipment. They are resistant to chemicals and can withstand corrosive substances.

 

Power generation industry
Flanges are used in power generation plants to connect pipes, turbines, boilers, and other equipment. They can withstand high temperatures and pressures and are essential for the efficient operation of power generation systems.

 

Water and wastewater treatment industry
Flanges are used in water and wastewater treatment plants to connect pipes, pumps, and other equipment. They are resistant to corrosion and can withstand harsh chemicals and sewage.

 

HVAC industry
Flanges are used in heating, ventilation, and air conditioning (HVAC) systems to connect pipes, boilers, chillers, and other equipment. They provide a reliable and efficient means of connecting and disconnecting pipes and equipment.

 

Plumbing industry
Flanges are used in residential and commercial plumbing systems to connect pipes, fixtures, and other equipment. They are easy to install, maintain, and repair and provide a leak-free connection.

 

Production Process

 

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How to Cooperate With Us

 

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Packaging and Shipping

 

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FAQ

 

Q: What are the main components of a flange?

A: A flange typically consists of a flat circular or square plate with bolt holes around the perimeter and a raised face or a flat face for making a seal. Some flanges may also have a hub or a neck portion depending on the type.

Q: What are the different types of flanges?

A: There are several types, including weld neck flanges (good for high - pressure applications), slip - on flanges (easy to install), blind flanges (used to close the end of a pipe or vessel), socket weld flanges (used for small - diameter pipes), and lap joint flanges (used with a stub end).

Q: How can you tell the difference between a weld neck flange and a slip - on flange?

A: A weld neck flange has a long tapered hub that is welded to the pipe. A slip - on flange has a shorter hub or no hub at all and is slipped over the pipe end and then welded.

Q: Are flanges used in both high - pressure and low - pressure systems?

A: Yes, different types of flanges are suitable for different pressure ranges. For example, weld neck flanges are often used for high - pressure systems, while slip - on flanges can be used for both low - and medium - pressure systems.

Q: Can flanges be used for non - circular pipes?

A: While most flanges are designed for circular pipes, there are also flanges made for square or rectangular ducts in some HVAC and industrial applications.

Q: What materials are flanges made of?

A: Common materials include carbon steel (for general - purpose applications), stainless steel (for corrosion - resistant applications), alloy steel (for high - temperature and high - pressure applications), and sometimes non - ferrous metals like brass or aluminum for specific applications.

Q: How do you choose the right material for a flange?

A: Consider factors such as the operating temperature, pressure, the chemical composition of the fluid being transported, and the environment (corrosive or non - corrosive). For example, if the fluid is acidic, stainless steel may be a better choice.

Q: How are flanges installed?

A: For welded flanges (like weld neck and socket weld flanges), the flange is first welded to the pipe. Slip - on flanges are slipped over the pipe and then welded at the appropriate location. Flanges are then bolted together using bolts, nuts, and gaskets to create a sealed connection.

Tianjin Delan International Co., Ltd is one of the leading flange manufacturers and suppliers in China. We warmly welcome you to wholesale flange in stock here and get free sample from our factory. For customized service, contact us now.

Reducing Flange, flange, Wn Flange
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