Chōsen Government Railway Pureha class
Korean National Pureo8 class and North Korean State Railway Purŏp'a class
Korea 1932 38 produced
In Korea, 2-6-2 locomotives (Prairie) got the prefix “Pure”. The last of these locomotives introduced by Sentetsu was the Pureha. With a driver diameter of 1,520 mm (5 feet), they were faster than their predecessors. The first twelve were built in Korea in the Gyeongsong Works and 26 more followed from Japan in 1939, built by Hitachi and Kisha Seizō with only the final assembly taking place in Korea. After World War II, these locomotives came both to North and South Korea.
Technical data
General
- Built
- 1932, 1939
- Manufacturers
- Gyeongseong, Hitachi, Kisha Seizō
- Wheel arrangement
- 2-6-2T (Prairie)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 10.93 m
- Service mass
- 67.7 t
- Adhesion mass
- 43.9 t
- Water capacity
- 5,000 l
- Fuel capacity
- 2 t (coal)
Boiler
- Grate area
- 2.4 m²
- Firebox surface
- 10.2 m²
- Tube heating surface
- 69.6 m²
- Evaporative heating surface
- 79.8 m²
- Superheater surface
- 24.5 m²
- Total heating surface
- 104.3 m²
Power plant
- Driver diameter
- 1,520 mm
- Boiler pressure
- 14 bar
- Expansion type
- simple expansion
- Cylinders
- two, 410 x 610 mm
Power
- Power source
- steam
- Estimated power
- 750 kW (1,020 PS)
- Top speed
- 90 km/h
- Starting effort
- 80.3 kN
Calculated values
- Factor of adhesion
- 1 : 5.36
- Optimal speed
- 58 km/h
- Power-to-weight ratio
- 11.1 kW/t
- Heating Surface Equivalent
- 179.8 m²
- Cylinder volume/HSE
- 1 : 895.83
- Adhesive weight/Total
- 1 : 1.54
- Tractive force/Heating surface
- 1 : 16.07
- Grate area/Heating surface
- 1 : 43.46
- Firebox/Tube surface
- 1 : 6.82
- Total/Superheater
- 1 : 3.26
