Egyptian National Railways class 30
Egypt 1907 20 produced
In 1907, Henschel delivered 20 0-6-0 freight locomotives to the Egyptian State Railway which were numbered 459 to 478. They were the heaviest locomotives of this wheel arrangement in Egypt. After 50 years, they were the first inside frame locomotives in this country. The cylinders were mounted on the inside of the frames and were controlled by inside Walschaerts valve gear. The boiler was pitched high with a large gap underneath and had a large Belpaire firebox. In heavy freight service, their coal consumption was 62 to 66 pounds per mile. Number 464 that was identified as the class member with the highest consumption, later received a smokebox superheater that led to a consumption that was roughly 15 percent lower than the class average.
Technical data
General
- Built
- 1907
- Manufacturers
- Henschel
- Wheel arrangement
- 0-6-0 (Six-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 5.26 m
- Service mass
- 55.4 t
- Total mass
- 99.8 t
- Rigid wheelbase
- 5.26 m
- Water capacity
- 18,185 l
Boiler
- Grate area
- 2.295 m²
- Firebox surface
- 15.004 m²
- Tube heating surface
- 167.969 m²
- Evaporative heating surface
- 182.973 m²
- Total heating surface
- 183.0 m²
Power plant
- Driver diameter
- 1,524 mm
- Boiler pressure
- 12.4 bar
- Expansion type
- simple expansion
- Cylinders
- two, 483 x 660 mm
Power
- Power source
- steam
- Estimated power
- 671 kW (912 PS)
- Starting effort
- 106.5 kN
Calculated values
- Optimal speed
- 39 km/h
- Power-to-weight ratio
- 12.1 kW/t
- Heating Surface Equivalent
- 258.0 m²
- Cylinder volume/HSE
- 1 : 936.47
- Tractive force/Heating surface
- 1 : 12.15
- Grate area/Heating surface
- 1 : 79.73
- Firebox/Tube surface
- 1 : 11.19