This AMT cast iron immersion-type coolant pump is a replacement pump for foreign and domestic machine tools. The stainless steel semi-open impeller handles solids and fine contaminants and resists corrosion and the carbon steel shaft and sealless design resist abrasion. It can pump fluid levels as shallow as 2" and handles liquids with viscosities up to 500 Saybolt Seconds Universal (SSU), such as sesame oil at 60 degrees F. The totally enclosed, fan cooled (TEFC) electric motor is protected against dust and indirect water spray and this pump is suitable for the circulation and spraying of coolants and cutting oils.SpecificationsMotor1/8 to 3/4 hp, TEFC, 3450 RPMPumpCentrifugal, carbon steel shaft, sealless designMaximum flow rateRanges from 10 to 56 gpmImpellerStainless steel, semi-openMaximum operating temperature180 degrees FMaximum liquid viscosity500 SSUPumps use mechanical action to move liquids, gases, or slurries (solids suspended in a liquid or gas). The mechanical action is categorized as either positive displacement (PD) or kinetic. PD pumps capture and release discrete amounts of flow into a chamber and then force it out. Some examples of PD pumps are fuel and oil pumps in cars, pumps in hydraulic systems, and bicycle pumps. Kinetic pumps move liquids, gases, or slurries by transferring energy from the pump's movement to the flow. They use an impeller to draw the flow in, add energy to the flow, and move it through a volute (a spiral funnel through which the flow moves), and into the system. Some examples of kinetic pumps include centrifugal (the most common pump in industrial applications), in-line pumps, sump pumps, and suction pumps. Energy sources for all types of pumps include wind power, manual operation, electricity, and gasoline or diesel fuel.American Machine and Tool (AMT) manufactures centrifugal and diaphragm pumps. The company is headquartered in Royersford, PA.