car ZIL-131

The safety valve is designed to protect the pneumatic system from excessive pressure increase in the event of damage to the automatic pressure regulator

ZIL-131 wheels, disc, with split rim and spacer ring, interchangeable, rim size 9.0 RG — 20
Tires of size 12.00—-20, adapted to work at variable pressure

Radiator tubular-ribbon, with oval-section tubes, four-row
Radiator filler cap (Fig. 1) is sealed with two valves; inlet (air) and outlet (steam)