A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.
Pumps can be classified by their method of displacement into positive displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps and valveless pumps. There are three basic types of pumps: positive displacement, centrifugal and axial-flow pumps. In centrifugal pumps the direction of flow of the fluid changes by ninety degrees as it flows over an impeller, while in axial flow pumps the direction of flow is unchanged. When a casing contains only one revolving impeller, it is called a single-stage pump. When a casing contains two or more revolving impellers, it is called a double- or multi-stage pump.As one of the world’s largest manufacturers of ice systems, with more than 300 models of ice machines, storage bins, and ice and water dispensers, Scotsman is dedicated to developing today’s most innovative ice solutions. Committed to US manufacturing, Scotsman manufactures 99% of its equipment in the US. Scotsman has earned the ENERGY STAR® Partner of the Year Award, as well as, the recipient of the ENERGY STAR® Award for Excellence in Energy-Efficient Product Design. ALWAYS OEM