Zephyr oil lubricated screw compressors are constructed with the aim to reach the best solution for the customer. The benefits are efficiency, purchasing price and service cost.

Higher and more efficient production of the compressed air is achieved by the correctly sized airend, the reduction of the inner losses, the sizing of the cooler with a proper position in the compression housing. The economic regulation is achieved with efficient asynchronous motor including VFD.

These key parts could cause most of the losses and thereby, contribute to the complete compressor’s efficiency. The producer selects each part of the compressor from the most reliable producers. Electrical equipment is mostly supplied by Siemens or Schneider Electric. The airends are mostly selected from established producers as are GHH-Rand, Aerzen or GD.

Zephyr compressors are directly coupled with the motor and the airend and this solution has several benefits against the belt driven or gear driven solution. Direct drive compressors have no losses in comparison to the belt driven ones by approximately 15%. Furthermore, direct driven solution positively effect the working conditions in low speeds where the lifetime of the bearings lasts longer and therefore, prolongs the reliability of the airend and the compressor. Additional important benefit of a direct drive is a minimal service cost for the moving parts.

It is possible to install a heat recovery unit inside the Zephyr compressors and use the compression heat for other applications. Compression heat is accumulated in the oil and through the heat exchanger it is transferred to the water side. This heat can be used, for example, heating. Energy recovery is about 90% of the input electric power and the maximum output temperature on the water side is approximately 85°C.

Cooler

Cooling capacity of the cooler is oversized by 30%, therefore smooth operation is ensured at the hard ambient conditions.

Control panel

Microprocessor control precisely regulates the compressor. Control panel is in Czech and another languages. Standard equipment is remote communication via Modbus.

Motor

High efficiency IP55 motor in accordance to IE3 standard. This type of motor has positive effect on an operation costs.

Direct drive

Motor is directly coupled with airend. This solution perfectly ensures power transmission without loses.

Compact design

Compressor is designed with minimum inner connection pipes and hoses which are source of leakages and losses.

Air/Oil Separator

Separator element is designed from innovative material with perfect separation ability and low pressure drop. These benefits have positive effect on the efficiency.

Airend

Screw elements are produced in Germany because of the higher quality. Airends are designed with the aim to reach the best performance at the low speed as much as possible.

Technical specifications of Zephyr compressors: