Which suction piping condition should be avoided?

Reduced or restricted pipe diameter in suction piping is a condition that should be avoided because it can lead to several significant issues in a pumping system. When the diameter of the pipe is decreased, it creates increased resistance to the flow of liquid. This resistance can cause a drop in pressure within the suction line, making it difficult for the pump to draw the necessary fluid.

This condition may result in cavitation, which occurs when vapor bubbles form in the liquid due to low pressure and subsequently collapse, leading to potential damage to the pump and reduced efficiency. Additionally, restricted diameter can hinder the overall capacity of the system, causing it to operate below its intended performance level.

Effective suction piping should be designed with a diameter that allows for the smooth, unrestricted flow of liquid to the pump, ensuring optimal performance and longevity of the equipment. Therefore, maintaining an appropriate pipe diameter is essential for a robust and efficient pumping system.