The neck height of the flange with a neck is relatively low, which can improve the stiffness and load-bearing capacity of the flange. Compared with butt welding flanges, the welding workload is large, the consumption of welding rods is high, and it cannot withstand high temperature, high pressure, repeated bending, and temperature fluctuations. However, the on-site installation is more convenient, and the process of welding seam rubbing can be omitted, which is more popular. Neck butt welding flange: Neck flange welding is commonly referred to as a 'high pivot' flange.
The purpose is to transfer pressure in the pipeline, thereby reducing high stress concentration in the Franke. Neck flange welding is a good design for welding flanges that provide structural value due to their inherent existence. However, the price is relatively high due to the complex consumption process of the product. Threaded flange: This threaded flange is connected using threads. But the center of the product has a thread size corresponding to the pipe. Its main advantage is that it can be assembled without welding.
Sliding flange: The sliding flange has a lower hub, as the pipeline enters the single flange before welding. This provides sufficient strength for both the internal and external welding to prevent leakage. Sliding flanges are designed to match slightly larger outer diameter pipes. They are superior to neck flange welding due to lower initial costs.
Many users, but the cost of the later device will not be low, due to the addition of fewer welding neck flanges and overlapping flanges: in practice, overlapping flanges are completely identical sliding flanges, unless it is within a radius between the hole and the flange race. This is the necessary radius for the flange to accommodate the overlapped stub. Usually, the overlapping flange and overlapping stub will mate together at the end of the month to assemble the system.
The socket welding flange is a similar sliding flange, unless it has a hole and a reverse hole size. Match the counter hole with the pipeline to insert the pipeline into a sliding flange similar to the flange. Matching pipes with the same ID and diameter in smaller holes. The limitation is the built-in hole, which serves as a specialized shoulder sleeve for pipes to stay at the bottom. This eliminates any flow restrictions when using socket welding flanges.
