Delta Hybrid direct-driven energy-efficient screw blowers are designed for industrial water aeration.

The products is the result of a synergy between rotary lobe blower and screw compressor technologies. It offers new possibilities for generating positive pressure or vacuum by combining the technical advantages of both concepts.

While low pressure applications call for the Roots-Principle of isochoric compression, the screw compressor, with its internal compression, becomes the preferred choice for its energy efficiency in higher pressure ranges.

The package concept is based on the well known and successful AERZEN Delta design (Delta Blower and Delta Screw).

Key benefits

  • Reduced life-cycle costs

  • High energy efficiency

  • High reliability

  • Long service life

  • Reduced maintenance needs

  • 100% oil free certified air

  • Ready for industry 4.0

Energy efficiency

  • New and unique 3+4 rotor profile

  • Energy savings up to 37% compared to lobe blowers

  • Extended control range with almost constant specific power consumption

  • Separate process and air cooling paths

  • Optional Ultra Premium Efficiency IE5 motors

  • IES2 drive system efficiency (motor + frequency converter)

Compact design

  • Space-saving side-by-side installation

  • Smaller dimensioning of machine rooms

  • Easy access for service and maintenance work

  • Integrated power suppy panel having the same footprint

Reliability and durability

  • Patented bearing, theoretical lifetime of more than 60,000 hours (at 1.000 mbar pressure difference)

  • Pressure lubrication for exceptional reliability of the bearings

  • Active oil level monitoring using an oil level switch

  • Reliable even in extreme climatic conditions (+50°C) thanks to the use of an oil cooler

  • Acoustic hood for outdoor installation (optional) for installation of the machine under direct atmospheric agents

Applications

  • Sewage treatment

  • Drinking water purification

  • Pneumatic conveyance of bulk materials (vacuum/pressure pneumatics)

  • River and lake aeration

Products

Type of technology

Screw blowers

Series

Screw blowers delta hybrid direct driven

Design

Positive pressure (4)

Medium

Air

Conveying / compression

Oil-free

4 product options.

Delta Hydrid Screw Blower

D40S

D50S

D65S

D80S

Pressure difference, mbar

1,250

1,250

1,250

1,250

Volume flow, m3/h

2,430

3,060

3,900

4,800

Motor power, kw

55

90

90

160

Sound pressure, max db(A)

75

75

75

75

Width, mm

1,300

1,300

1,500

1,500

Depth, mm

1,700

1,700

2,200

2,200

Height, mm

2,134

2,134

2,430

2,430

Nominal size

DN 200

DN 200

DN 200

DN 250

Weight, kg

1,700

1,700

2,500

2,500