Parker provides a complete range of quantitative and variable displacement pumps, and utilizes inline and advanced shaft technology to provide a series of application solutions for the construction, shipbuilding, mining, oil, and natural gas industries. Our pump technology includes open and closed (hydrostatic) plunger pumps, which are suitable for various fluid types, including standard mineral hydraulic oils, water glycol, phosphate esters, and biodegradable fluids. The Parker plunger pump combines reliable performance, high precision, and compact design.