The PK series piston compressor units are universal equipment for compressed air supply, which is used:
in industry - for driving pneumatic tools and mechanisms;
in transport - to create pressure in the lines of brake and pneumatic systems of rolling stock.
The air-cooled two-stage compressor PK-5.25 MPS differs from other models of the series by its high capacity (5.25 m³ / min) and power consumption (33 kW). The installation creates operating pressure in systems from 7 to 9 kgf / cm². Design differences from the "younger" models are the presence of six cylinders with a V-shaped arrangement. The compressor is equipped with a tubular refrigerator for intermediate cooling of compressed air. The unit is driven by an electric motor or diesel locomotive through an elastic coupling.