How to Choose A Gravel Pump?

To choose the right model, consider these four essential factors:

Maximum Particle Size: Ensure the pump's internal clearance can accommodate your largest solids. If you are moving 100mm stones, your pump and piping must handle that diameter without clogging.

Total Dynamic Head (TDH): Calculate the vertical lift plus the friction loss over the pipeline's length. High-head models are necessary if you are pumping over long distances or up steep banks.

Material Construction: Look for high-chrome alloys for the impeller and casing. These materials provide the wear resistance needed to survive the constant "sandblasting" effect of gravel.

Flow Rate vs. Velocity: You must maintain a critical carrying velocity (usually above 3 m/s) to keep solids from settling and plugging the pipe.