The “U”-shaped bend in the pipe
Thread Content
It is common to see that pipes do not lead directly into the equipment, but first go upward, then downward, before entering the equipment. What is the main purpose of designing such a “U”-shaped bend in pipes?
This is U-sealing, which ensures that gas does not flow downstream...
Gases and liquids are separated. Generally, the high point of the U-shaped bend is near the top of the equipment.
Different processes have different functions. It is generally used more for liquid sealing
Some serve as a liquid seal, but their main function is to reduce the impact of pipe deformation on the pipes or equipment.
There are various reasons for this U-shaped bend, such as process requirements, the operation and maintenance of valves, accommodating the thermal expansion of pipes, ensuring a straight and level pipe layout, aesthetic considerations, and arranging pipes in rows. This issue cannot be addressed in a general manner; it requires analysis based on specific circumstances
The U-shaped bend has many functions: liquid sealing, shock absorption and energy dissipation, as well as avoiding pipeline interference
There are various reasons for this U-shaped bend; the thermal expansion of the absorption pipe due to high temperatures； Pipes at lower temperatures either cross other pipes or separate gas from liquid ； Some keep a certain liquid level in the container. Rising first and then falling causes the liquid to flow back.
Sometimes, adding a U-shaped bend is to meet stress requirements!