The thickness of the bottom of the tank is not less than 12 mm The thickness of the shells of the tank is not less than 12 mm The thickness of the breakwaters is not more than 4 mm Number of compartments 1 Geometric volume, (m3) 25 Useful volume, (m3) at 85% filling 21 Operating pressure, (MPa.) 1, 57 Operating temperature, (degrees C) -40…+50 Gross semi-trailer weight, (kg) 20900 Curb weight of semi-trailer, (kg) 9000 Load distribution from the total trailer weight: - to the fifth wheel of the tractor, (kg) 8000 - road load through rear bogie tires (kg.) 12900 SSU kingpin diameter, (inches/mm) 2 / 50.8 SAF-Holland (Germany) Tires / number of wheels (spare)** pneumatic 385/55 R 22.5 160K / 4 (1)