The role of bypass pipes. What is the purpose of installing bypass piping?

When considering which type of valve is suitable for installation in the bypass pipe, the first thing to consider is the role of the bypass pipe. What is the purpose of installing bypass piping? Bypass piping can be roughly divided into two categories.
When equipment is replaced
As a backup pipeline, the bypass pipeline is used to isolate equipment such as pressure reducing valves and steam traps when they are damaged or need to be replaced and repaired, or to close the main pipeline and open the bypass pipeline to allow the equipment to continue to operate.
When the equipment needs to be replaced, the bypass pipe is used as a spare pipe. Its function is not only to maintain liquid circulation, but also to be a substitute for pressure reducing valves and steam traps. It is necessary for the bypass pipe to have certain fluid control. Function. In this case, a globe valve is very suitable as a bypass valve.
Supplementary effect
Bypass piping complements the performance of pressure reducing valves and steam traps. Different purposes require valves with different functions. Therefore, the optimal valve type is also different.
The bypass pipe as a supplementary performance is used to provide more pressure or flow, requiring the valve to have lower resistance, so the valve is often in a fully open state during use. In addition, if a control valve is installed in the pipeline, it is required to open/close the valve quickly. In this case, a ball valve is very suitable as a bypass valve.

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