Belgian State Railways Type 20

The Belgian State Railways Type 20 was a class of 0-8-0T steam locomotives, introduced in 1870.

Belgian State Railways Type 20
Type and origin Power type Steam Build date 1870–1874, 1880 Total produced 54
Specifications Configuration: ​  • Whyte 0-8-0T  • UIC D n2t Gauge 1,435 mm (4 ft 8+1⁄2 in) Driver dia. 1,050 mm (3 ft 5+3⁄8 in) Wheelbase 4.50 m (14 ft 9+1⁄4 in) Length 10.020 m (32 ft 10+1⁄2 in) Axle load 13.50 t (29,800 lb) ​  • 1st coupled 12.10 t (26,700 lb)  • 2nd coupled 12.65 t (27,900 lb)  • 3rd coupled 13.50 t (29,800 lb)  • 4th coupled 12.55 t (27,700 lb) Loco weight 50.8 t (112,000 lb) Fuel capacity 1,900 kg (4,190 lb) Water cap. 6,600 L (1,450 imp gal; 1,740 US gal) Firebox: ​  • Type Belpaire  • Grate area 3.78 m2 (40.7 sq ft) Boiler pressure 9 atm (0.912 MPa; 132 psi) Heating surface 136.1033 m2 (1,465.004 sq ft) Cylinders Two, inside Cylinder size 480 mm × 550 mm (18.90 in × 21.65 in) Valve gear Belpaire–Stévart
Performance figures Tractive effort 9 atm: 7,292 kg (16,076 lb) 10 atm: 8,103 kg (17,864 lb)
Career Operators Belgian State Railways Class Type 20

Construction history

The locomotives were built by various manufacturers from 1870–1874. One additional locomotive was delivered by Cockerill in 1880. The machines were designed by Belpaire and Stevart and had a Belpaire–Stévart valve gear.

Production quantities

Manufacturer	Quantity	Years	Note
Malines	1	1870	EB No 50, Prototype
Cockerill	34	1871–1875
Cockerill	1	1880
Couillet	5	1874
Tubize	14	1873–1874

References

Bibliography

• Tordeur, Emile (1909). Le Machiniste des Chemins de Fer Belges (in French).
• Dambly, Phil (Oct 1966). "Nos inoubliables vapeurs - Troisième période, 1864-1884 - Régime Belpaire". Le Rail (in French). No. 122.
• Dagant, André (1974). "Cent vingt-cinq ans de construction de locomotives à vapeur en Belgique". Bulletin de l'Institut archéologique liégeois (in French). 86. Liège: Maison Curtius: 23–244.
• Vandenberghen, J. (1988). Période Belpaire - Masui (in French). Bruxelles: SNCB.
• Delporte, Luc (23 Apr 2019). "Locomotive à fortes rampes, Tubize type 12 (Type 20 EB)". Musée 'de la Porte'. Retrieved February 26, 2021.