What is a single stage compressor?

A single-stage compressor is a type of compressor where the gas is compressed in a single step or stage. This means that there is only one impeller inside the unit and all the pressure is developed in one stage before it is discharged to the next process.

What is the difference between single stage and multi-stage compressors?

The main difference between single stage and multi-stage compressors is the number of times the gas is compressed. In a single stage compressor, the gas is compressed once, while in a multi-stage compressor, the gas is compressed multiple times in different stages (by multiple impellers) to achieve higher pressure.

Single stage radial compressors

High efficiency, high reliability single-stage radial compressors for a wide range of applications

We offer a comprehensive range of single-stage radial compressors for applications in the metallurgical, oil and gas and chemical industries. These single-stage compressors are offered in a variety of designs. They can be configured with separate or integrated gearboxes, or as directly driven units. This allows to perfectly match the compressor with a wide range of prime movers including steam turbines and electric motors to meet customer preferences and specific site conditions.

High flow, high efficiency impeller technology
High-speed balancing ensures long time uninterrupted operation
Hirth-serration connection between impeller and shaft eliminates the need for re-balancing after rotor disassembly
Horizontal split gearbox casing enables easy access in case of maintenance (where applicable)
Compact design option for steam turbine driven units (direct drive)
Compliance with API standards where required

Single-stage centrifugal compressors for air compression

Our single stage centrifugal compressor is the perfect fit for atmospheric air compression at low pressure ratios. It covers a large flow range from small to very high volumes of up to 300,000 m³/h. This compressor uses well proven components from our integral geared compressor line and is designed in accordance with API 617. State-of-the-art aerodynamic parts allow a compact, single stage design. If necessary, an external gear box is used to match the driver speed. This modular design offers the advantage of an unchanged compressor design irrespective whether the machine is driven by a steam turbine, gas turbine or electric motor.