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Class Zcom 518 - 530
Manufacturer :
 Krauss
Locomotive Arrangement :
 1'Cn2vt
Year :
 1902/1908
Cylinder Bore (mm) :
 380 L.P. / 590 H.P.
Cylinder Stroke (mm) :
 500
Driving Wheel Diameter (mm) :
 1200
Leading Wheel Diameter (mm) :
 810
Wheelbase (mm) :
 4650
Boiler Pressure (atm) :
 13
The locomotives of this class are a rare type. They were the only
two cylinder compound locomotives that worked in Hellas. There
were three separate orders by the Peloponnese Railways for three
locomotives each, in 1902, 1904 and 1906 respectively. The other
four locomotives were from the Attica Railway, which were exactly
the same as the aforementioned ones. They came into Pelopon-
nese Railway ownership with the takeover of the Attica Railway in
1929. During their first years they did both mainline and branchline
service. With the introduction into service of more powerful loco-
motives they were transferred on branch line and small freight trains.
All twelve locomotives survived WWII and were rebuilt in 1945 or
1946 into simple expansion superheater locomotives. Thus they
were reclassified and became members of the class Zs 531-555.
This rebuilding was done due to the fact that saturated steam was
considered obsolete and they tended to be unstable because of
the two cylinders of uneven size.
Grate Area (m2) :
 1,0
Heating Surface (m2) :
 69,33
Superheater Surface (m2) :
 -
Empty Weight (t) :
 27,5
Weight in Working Order (t) :
 36,4
Adhesion Weight (t) :
 29,2
Tender Characteristics :
 -
Water Supply (m3) :
 5,0
Fuel (t) :
 1,0
Maximum Speed (km/h) :
 -