Granco Positive Displacement Rotary Pumps
Granco manufactures a full line of self-priming rotary positive displacement ball type pumps. Today, it is the only ball type rotary positive displacement pump being manufactured in the world. The ball and shaft inside a housing design has many advantages compared to other positive displacement pumps among them being higher volumetric efficiency, lower power consumption, lower maintenance costs, easier installation, and easy reversibility. Pumping capacities range from 5 GPM to over 300 GPM. The pumps can move fluids with viscosities from 32 ssu to over 1,000,000 ssu. They are used in both stationary and truck-mounted applications. The key markets for these pumps are petroleum, industrial, special chemical, and food products.