My mistake, sorry. I thought You wrote these pump are only to 330HP, but You wrote these pumps have flow 300 lph.
Explanation: E4LM from data sheet on my website have 330lph at 6 bar.
Popularly information in net tells that E5LM have flow up to 580lph (around), but this flow is at 40PSI (around 2,8bar).
If You will set E5LM on pressure 6 bar, You wil get the same flow. Old part E5LM is replaced by new part number E4LM.
It's exactly the same pump, manufacturer, materials, flow and pressure.