The Kempton Park Pumping Station's Sir William Prescott triple-expansion steam engine. ©Kempton Steam Museum 2020 commons.wikimedia.org/wiki/File:Sir_William_Prescott_Engine
Kempton Steam Museum
Home to the world’s largest working triple-expansion steam engine, one of a pair used to pump vast volumes of London’s drinking water from 1929 to 1980. These engines stand as high as four stacked double-decker buses.
