... Rotor pump (rotary lobe pump, lobe pump) Rotor pump (rotary lobe pump, lobe pump) Operation PrincipleRotor pump is also named colloid pump, three-lobe pump, ... and curve makes it more outstanding compared to other pumps in delivering material with larger powders. It effectively prevents ... kinds of valves , pipe fitting ,tubes , manhole covers ,pumps , etc for many years . We can design the products ...