Why inline pumps can not producing enough pressure to meet required head? We should know what factors will affect the head. Then go to solve. Flow rate, impeller, speed and cavitation are related to head.
How to properly install vertical multistage centrifugal pump? - the common installation errors and related solutions under a vertical multistage booster pump.
World Pump Industry Technology Development Status and General Trends - The technological development of pumps, like the development of other industries, is driven by market demand.