Construction year: 1907
Numbering locomotives: 20.001 - 20.010
Type of locomotief: ( American ) 4-6-0
Mechanism
Diameter of cylinders (d) : 500 mm
Piston stroke (l) : 660 mm
Diameter of driving wheels (D) : 1,980 m
Kettle
Kettle pressure (P) : 13,5 kg/cm²
Grid
Length: 1,937 m
Width: 1,070 m
Surface area (G) : 2,07 m²
Heating surface of the firebox: 12,21 m²
Heating surface of the firebox
Small fire tubes
Diameters : 40/45 mm
Amount: 153
Surface area 72,50 m²
Big fire tubes
Diameters : 118/127 mm
Amount: 18
Surface area 25,40 m²
Total heating area (S) : 109,81 m²
Diameter superheater pipes: 27/34 mm
Overheating surface (S1) : 26,85 m²
Boiler hull
Average diameter: 1,427 m
Plate thickness: 15 mm
Thickness fireboxplates: 16 en 20 mm
Material fireboxplates: Copper
Thickness fireboxplates
Sky plate: 20 mm
Rear and side plates: 14,5 mm
Pipe plate: 16 tot 27 mm
Thickness of pipe plate - Smoke box: 22 mm
Content of the ride-on kettle: 4,050 m³
Steam chest volume: 1,100 m³
Surface area of steam release: 6,20 m²
Ratio S/G : 53
Ratio S1/S: 0,245
Weight empty locomotive: 54 ton
Adhesion weight (A): 36,9 ton
Ratio T/A: 1/5,04
Towing capacity: T= 0,35 Pd²l 7 320 kg
D
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