Hammelmann, founded in 1949, established a U.S. corporate office in 1987, in Dayton, Ohio. Four decades of experience in the manufacture of high pressure products has been incorporated into a series of plunger pumps designed specifically for process applications within the chemical and hydrocarbon industries. The model HDP pump addresses the mechanical, operational, environmental, and economical concerns in today's highly regulated and cost conscious markets with features that include: friction free plunger seal assemblies (eliminating high pressure packing), a stress free pump head preventing fatigue failures, and integral gearing eliminating external gear boxes of V-belt drives.