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Screw compressors

Screw compressors

Screw compressors are positive displacement compressors which deliver gas flows without pulsation. This simplifies the pipe work around the compressor.  Rotary compressors are classified as positive displacement or dynamic compressors. A positive displacement compressor utilizes gas volume reduction to increase gas pressure. Examples of this type of compressor include rotary screw, lobe and vane compressors

Oil-flooded screw compressors are covered in the latest edition of API Standard 619 issued in 2004. Both oil-free and oil-flooded screw compressors have been expanding into process gas compression applications.

High reliability, low maintenance costs, simple foundations, low operational costs, low initial costs, low consumed power at unloaded condition, and suitability for process fluctuation such as gas composition and pressure are some of the basic attributes of the rotary screw compressors. These attributes have resulted in a significant demand for such machines, primarily as an alternate to reciprocating compressors.

Areas of use:

Chemical industry. This is an industry which needs a high quality compressed air purification.

Medicine. Reliability and minimal oil content of the compressed air - these characteristics should screw compressors have for use in the medical industry.

Production of polyethylene. For economical and efficient PET packaging screw compressors need high performance with low power consumption.

Advantages of screw compressors:

Screw compressors with forced lubrication with a pressure 8, 11 and 15 bar
Perfect performance efficiency, thanks to a special profile screw
Low power consumption
Low noise
Low maintenance requirements
Optional remote control via computer

Characteristics

Type

Power

kW

50 Hz

Flow rate

under 6 bar

m³.h-1

Noise level

dB(A)

Weight

kg

Maxi

pressure

bar

MVX2

2.2

20.4

60

140

8-11

MVX3

3

27

61

180

8-15

MVX4

4

36

62

145

8-15

MVX5

5,5

48

64

155

8-15

MVA8

7,5

72

64

210

8-15

MVB12

11

108

64

312

8-15

MVB16

15

132

65

320

8-15

MVC18

22

156

70

420

8-15

MVD22

22

210

66

655

8-15

MVD30

30

234

69

720

8-15

MVE37

37

330

67

1000

8-15

MVE45

45

420

70

1100

8-15

MVF55

55

608

69

1300

8-15