The selection of inlet and outlet pipe diameters for slurry pumps should follow the core principle that“the inlet pipe diameter shall not be smaller than the pump suction diameter, and the outlet pipe diameter shall be matched to the flow rate and head requirements.”
Pipe sizing should be designed around three key dimensions—slurry characteristics, pump parameters, and pipeline layout—with the ultimate goal of achieving anti-cavitation, anti-blockage, and low-energy-consumption operation, thereby ensuring stable and efficient slurry transportation.
Having spent a considerable chunk of my career inspecting and working alongside slurry pump manufacturing plants across Asia, I can say one thing for certain: when it comes to heavy duty slurry pumps, China's factories have come a long way. Now, don’t get me wrong — the reputation for “cheap and cheerful” still lingers outside the sector, but frankly, the engineering and build quality on many of these pumps is impressively solid.