Pump outlet line pressure
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The pump outlet pressure is 48 kilograms, while the main pipe pressure is only 12 kilograms. Why is that? Is it related to the back pressure?
It’s related to the back pressure; it’s restricting the pump outlet, or it’s the pump outlet control valve.
There is a significant pressure drop in the pipeline from the pump outlet to the main pipe; this may be caused by the pipeline or the valves
1. Check the pipeline pressure gauge. 2. Check each device and valve between the two pressure gauges. For example: the gate of the valve gets stuck or falls off.
The larger the outlet valve is opened, the lower the pressure, right? Can static pressure be converted into kinetic energy? Is there a more detailed explanation?
The larger the outlet valve is opened, the lower the pressure, right? Can static pressure be converted into kinetic energy? Is there a more detailed explanation?
The situation described in the discussion post is not detailed or complete. If there are no other check valves, shut-off valves, or similar devices between the pump outlet and the pressure measurement point in the main pipe, it is theoretically impossible! The pressure difference between the pump outlet and the main pipe, which are the two pressure measurement points, is equal to the sum of the fluid resistance and the static pressure between these two points. If there are valves involved, it means the valve is closed too tightly, or the check valve is stuck......
There is definitely a relationship between the pump outlet pressure and the pressure being applied; the main pipe may be thicker than the pipeline at the pump outlet, which results in lower pressure in the main pipe