Compressor, device for increasing the pressure of a gas by mechanically decreasing its volume. Air is the most frequently compressed gas but natural gas, oxygen, nitrogen, and other industrially important gases are also compressed. The three general types of compressors are positive displacement, centrifugal, and axial. Positive displacement compressors are usually of the reciprocating piston type, in which the gas is drawn in during the suction stroke of the piston, compressed by decreasing the volume of the gas by moving the piston in the opposite direction, and, lastly, discharged when the gas pressure exceeds the pressure acting on the outlet valve. Reciprocating compressors are useful for supplying small amounts of a gas at relatively high pressures.
Key features of Reciprocating Compressors are power up to 33 MW – Pressure 600 bar and road load up to 1,00 kN. Benefits of these includes the unique Free Floating Piston system uses a cushion of process gas to support the piston, eliminating rider ring wear and greatly extending intervals between maintenance.
- Vertical Reciprocating
Vertical reciprocating compressors cover an area of the lower capacity (lower than horizontal reciprocating compressors). They are the optimal solution for low space locations and requirements. Vertical compressors can be configured as a single- to-four cylinder design.
Diaphragm compression is the technology of choice in any situation where complete hermetic separation is required, for example in the handling of rare, toxic, flammable, explosive or radioactive gases.
Hybrid series is available in horizontal or vertical configurations of up to five compression stages, offering pressures increases of to 450 bar while providing inter-stage cooling and purging of condensates. These units are suitable for virtually all dry gases including helium, hydrogen and nitrogen.