Global Power Supply provides oil and gas compression solutions to customers across North America. With over 30 years of experience, our project managers will prioritize your project needs – from small, rotary vane compression units to powerful equipment operating in the most unforgiving environments. We supply total solutions including engineering, new and used equipment, prime power units and preventative maintenance services.

As one of the leading companies in power supply innovation, we also provide our clients with the opportunity to rent or rent-to-own equipment, as well as rapid-delivery to any location. From air, nitrogen, hydrogen, carbon dioxide, natural gas and other hydrocarbons – we have the compression units to help move your project forward.


About Compressors

Centrifugal compressors use a rotating disk or impeller in a shaped housing to force the gas to the rim of the impeller, increasing the velocity of the gas. A diffuser (divergent duct) section converts the velocity energy to pressure energy. They are primarily used for continuous, stationary service in industries such as oil refineries, chemical and petrochemical plants and natural gas processing plants.

Their application can be from 100 horsepower (75 kW) to thousands of horsepower. With multiple staging, they can achieve extremely high output pressures greater than 10,000 psi (69 MPa).

Reciprocating compressors use pistons driven by a crankshaft. They can be either stationary or portable, can be single or multi-staged, and can be driven by electric motors or internal combustion engines.

Small reciprocating compressors from 5 to 30 horsepower (hp) are commonly seen in automotive applications and are typically for intermittent duty. Larger reciprocating compressors well over 1,000 hp (750 kW) are commonly found in large industrial and petroleum applications. Discharge pressures can range from low pressure to very high pressure (>18000 psi or 180 MPa). In certain applications, such as air compression, multi-stage double-acting compressors are said to be the most efficient compressors available, and are typically larger, and more costly than comparable rotary units.

Another type of reciprocating compressor is the swash plate compressor, which uses pistons which are moved by a swash plate mounted on a shaft – see Axial Piston Pump.