These are precision metering pumps capable of accurately pumping small amounts of mineral or synthetic oil to injection points of various machines, such as compressors, heavy steam engines, pumps, and other machinery that require precise lubrication. These pumps are single-piston and are mechanically driven by a camshaft within the reservoir. The volume of oil pumped per piston stroke for the 3/16-inch size can be adjusted from 0.5 to 3 drops, while for the 1/4-inch size, it ranges from 2 to 12 drops per stroke. The working pressure for the 3/16-inch size is 550 bar, and for the 1/4-inch size, it is 448 bar. All working components are fully enclosed, protected from dirt, water, and impurities, and are continuously lubricated by the fluid in the reservoir.
