Effect of large and small ends
Thread Content
What is the purpose of installing larger and smaller ends on both sides of the flow meter and control valve?
Elbows serve the purpose of changing the diameter; since control valves are generally smaller than the main pipes, elbows are needed to adjust the diameter.
Just four words: 【Diameter change function】
It should be a bottom-flat diameter change to prevent the gas from affecting the flow meter or control valve
Usually, the diameter of the control valve is the same as that of the pipeline, but the most accurate approach is to determine the size of the control valve based on its CV value; this can help save some investment. Elbows of different sizes are used to change the diameter, and concentric elbows are employed to ensure better flow conditions for the control valve, resulting in more precise control. The use of eccentric tees prevents fluid accumulation in the pipes at both ends of the control valve.
The diameter of the control valve’s pipe is smaller than that of the pipeline; size transitions are achieved using reducers, with eccentric reducers being commonly used. During installation, the bottom surfaces should be level
Could you explain it in detail? Learning*, thank you. What is the concept of low-profile diameter variation, and how can gas influence be prevented?
On the one hand, there are the requirements of the instruments: appropriate flow rate measuring instruments offer higher precision and more accurate control. On the other hand, there are the considerations related to investment. Instrumentation components are generally expensive; reducing the diameter can save a lot of money in terms of investment