28% hydrogen peroxide solution, 30% urea solution – are these two pumps suitable? ? ?

IR is a single-pole hot water centrifugal pump; no problem. For urea, a centrifugal pump can also be used, right?

It can be used, but the performance curve is a bit off, which has an impact on pumping back. It seems the motor needs to be replaced

Thank you. If I need to replace the motor, should I use an energy-saving motor or something else?

This needs to be determined based on your actual on-site requirements; you need to recalculate the specific gravity of your liquid, and then select an appropriate motor accordingly, which also helps save energy

Regarding shielded pumps, add me on QQ: 79753774 for a detailed discussion.

28% hydrogen peroxide: maximum flow rate of 20 m3/h, outlet pressure of 0.3 Mpa, inlet pressure of 0.001 Mpa, head of 15 m. 30% urea solution: maximum flow rate of 20 m3/h, outlet pressure of 0.3 Mpa, inlet pressure of 0.002 Mpa, head of 15 m. The facility currently has two idle pumps: one is an IR-type pump with a flow rate of 25 m3/h and a head of 32 m, made of stainless steel; the other is a canned pump with a flow rate of 60 m3/h and a head of 25 m, made of 316L material. Hydrogen peroxide – stainless steel ； As for head, it can be reduced by cutting the impeller, but the lowest value is likely around 20m ； For the material, stainless steel is just right ； The motor power depends on the medium conveyed by the original pump. Urea using a shielded pump ； The 316L urea material is corrosion-resistant, but its drawback is that it does not provide insulation. It should be noted that urea is prone to crystallization~