Reducing Threaded Flange

The threaded flange gets its name from the fact that a hole is processed in the middle of the flange, which is then smooth-bored into pipe thread, allowing the use of the flange with a threaded pipe, rather than relying on welding techniques. This type of flange is classified as non-welded. When installing the threaded flange, the threaded pipe is treated with hemp and lead oil, and then the flange is tightened onto it. One of the main benefits of using a threaded flange is that it can be easily disassembled and tightened, making it much more convenient for performing maintenance and cleaning on machines.

To ensure the threaded flange effectively seals, there are certain considerations to keep in mind. These include: maintaining proper installation techniques, avoiding over-tightening of bolts, checking for correct alignment of the flange and pipe, and using appropriate gaskets. These precautions are crucial for the threaded flange to fulfill its sealing function adequately.

2) To ensure consistency and uniformity in various machine installations and facilities, it is crucial to establish standard sizes and specifications for threaded flanges. Recognizing this need, the state has defined a range of inner diameters for threaded flanges, ranging from 48 to 408.6 mm, which are deemed suitable for widespread use. As a result, these standardized threaded flanges have gained immense popularity across various industries. In general, the outer diameters of flanges fall within the range of 50-840 mm, while the bolt thickness ranges from 14 to 52 mm. Furthermore, the bolt hole spacing typically varies between 4 and 36 mm, all of which are meticulously documented in the flange specification table.

The threaded flange necessitates the use of threaded pipe, which means that the threaded pipe comes in various specifications to fit the threaded flange size requirements. These threaded pipes are typically made from the same materials as the threaded flange to ensure uniform quality and comprehensive equipment.

Currently, the primary choice for manufacturing threaded flanges and pipes is steel due to its exceptional compressive strength. This property ensures that the material remains intact and undamaged during installation, providing utmost convenience. Additionally, steel exhibits superior corrosion resistance compared to alternative materials. Therefore, steel stands as the favored option for threaded flanges and pipes, offering reliable performance and long-lasting durability.

The threaded flange may be a convenient option for cleaning and maintenance purposes, but it is advisable to avoid using it in certain situations. This is because threaded pipes are highly influenced by environmental factors and experience extensive temperature fluctuations, especially when exposed to extreme conditions. Therefore, it's advisable to use welded flanges in environments with temperatures above 200 ℃ or below -40 ℃. By doing so, you can ensure the durability and reliability of your system even in harsh conditions.

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