Sentetsu Pureshi-class locomotives
The Pureshi-class locomotives were a group of steam tank locomotives with 2-6-2 wheel arrangement of used by the Chosen Government Railway in Korea. The "Pure" name came from the American naming system for steam locomotives, under which locomotives with 2-6-2 wheel arrangement were called "Prairie".
In all, Sentetsu owned 227 locomotives of all Pure classes, whilst privately owned railways owned another 52; of these 279 locomotives, 169 went to the Korean National Railroad in South Korea and 110 to the Korean State Railway in North Korea.
Description
The Pureshi class consisted of 46 Purei-class locomotives rebuilt by Sentetsu's Gyeongseong Works from 1925. Major modifications included increasing the size of the firebox to allow the use of lignite, which has a lower caloric value than anthracite coal. Boiler volume was increased, the heat transfer area was increased, the stoker was enlarged, and special attention was given to the prevention of sparks. The performance was found to be good, and eventually 46 Purei class locomotives were rebuilt to Pureshi standard. The redesign work also gave Sentetsu engineers important experience, which was later applied to the design of the Pashishi and Mikasa-class locomotives. After Sentetsu's general renumbering of 1938 they were numbered プレシ1 through プレシ46.The original identities of the locomotives rebuilt is unknown.