Raised Face Threaded Flange

A raised face threaded flange is a key piping component. It has internal threads that enable connection to pipes or fittings with matching external threads, facilitating easy assembly and disassembly. Additionally, it features a raised ring on the mating surface. This raised part is slightly larger than the pipe's diameter, providing a better sealing surface for gaskets. It can create a tighter seal, minimizing the risk of leaks. Usually made of materials like stainless steel or carbon steel, it's suitable for various low-pressure applications in industries such as construction and manufacturing.

Easy Installation and Maintenance: It doesn't require welding, which simplifies the installation process and reduces construction time and effort. This is especially advantageous in situations where on-site welding is restricted, such as in some explosive or flammable environments. And when maintenance or replacement is needed, it can be easily disassembled without the need to cut or weld the pipeline.
 

Good Sealing Performance: The raised face design of the flange helps to evenly distribute the load across the sealing surface. When paired with a suitable gasket, it can create a reliable seal, effectively preventing leaks of fluids or gases.
 

Low Additional Torque: When the flange deforms, it generates a relatively small additional torque on the cylinder or pipeline. This is beneficial for protecting the connected equipment and pipelines, reducing the risk of damage caused by excessive torque.
 

Suitable for Various Materials: It can be made from a variety of materials, enabling it to meet the requirements of different working conditions in terms of corrosion resistance, high temperature resistance, and pressure resistance.

External Threaded Flange: The flange has external threads on the inner hole, which are screwed onto the external threads of the pipe. This type is commonly used for small-diameter pipes or in applications where the connection force is not too large.
Internal Threaded Flange: It has internal threads on the outer surface of the pipe connection end, which connect with the external threads of the pipe. It is suitable for pipes that require a more stable connection and can withstand greater forces.

Plumbing Systems: Commonly used in domestic and commercial water supply and drainage systems to connect pipes of different sections, facilitating installation and maintenance, and ensuring the sealing performance of the pipeline.
 

Irrigation Systems: In agricultural irrigation and garden watering systems, raised face threaded flanges are used to connect various pipes to ensure the normal operation of the irrigation system and are convenient for system expansion and repair.
 

Fire Protection Systems: In fire protection water supply pipelines and fire extinguishing systems, they play a role in connecting pipes and ensuring the reliability of the system. The easy installation and disassembly characteristics of threaded flanges are beneficial for the maintenance and upgrading of fire protection systems.
 

Low-Pressure Chemical Pipelines: In some chemical production processes, for the transportation of low-pressure chemical fluids, raised face threaded flanges can be used to connect pipes. As long as the chemical resistance of the flange material is ensured, it can meet the requirements of the chemical production process.

Carbon Steel: It has good mechanical properties and strength, and is suitable for general working conditions, such as low-pressure water and gas pipelines. It is cost-effective and widely used.
Stainless Steel: Such as 304 and 316 stainless steel, have excellent corrosion resistance and high temperature resistance. They are suitable for occasions where the medium has corrosiveness, such as in the chemical industry, food processing industry, and pharmaceutical industry.
Alloy Steel: It has higher strength and hardness, and can also have good performance in high-temperature and high-pressure environments. It is often used in some high-demand industrial pipelines, such as in the oil and gas industry and power generation industry.
Non-Metallic Materials: Such as plastics (e.g., PTFE) and ceramics. These materials have the advantages of corrosion resistance and insulation, and are suitable for some special occasions, such as pipelines transporting corrosive media or requiring electrical insulation.

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