Construction year: 1935
Numbering locomotives: 7.001 - 7.015, 7.017 , 7.019 - 7.024 , 7.029 - 7.061 , 7.063 , 7.065 - 7.074
Type of locomotief: ( 10 Wheel ) 4-6-0
Mechanism
Diameter of cylinders (d) : 400 mm
Piston stroke (l) : 640 mm
Diameter of driving wheels (D) : 1,800 m
Kettle
Kettle pressure (P) : 16 kg/cm²
Type of Firebox: Belpaire
Grid
Length: 3,030 m
Width: 1,019 m
Surface area (G) : 3,08 m²
Heating surface of the firebox: 17,40 m²
Heating surface of the firebox
Small fire tubes
Diameters : 45/50 mm
Amount: 122
Surface area 76 m²
Big fire tubes
Diameters : 125/133 mm
Amount: 30
Surface area 60,48 m²
Total heating area (S) : 153,85 m²
Diameter superheater pipes: 30,5/35 mm
Overheating surface (S1) : 73,5 m²
Boiler hull
Average diameter: 1,600 m
Plate thickness: 19 mm
Thickness fireboxplates: 15 en 18 mm
Material fireboxplates: Copper
Thickness fireboxplates
Sky plate: 16 mm
Rear and side plates: 16 mm
Pipe plate: 16 tot 30 mm
Thickness of pipe plate - Smoke box: 25 mm
Content of the ride-on kettle: 7 m³
Steam chest volume: 2,350 m³
Surface area of steam release: 9,80 m²
Ratio S/G : 52
Ratio S1/S: 0,343
Weight empty locomotive: 79,632 ton
Adhesion weight (A): 59,736 ton
Ratio T/A: 1/5,47
Towing capacity: T= 0,651 (pd² + p'd'²) 10 900 kg
D
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