Screw Compressors Screw Compressor
Delta Screw Generation 5plus with belt drive

The single-stage, oil-free screw compressors in the Delta Screw Generation 5plus series are universal machines. They bundle all the know-how of a world market leader in compressor technology to offer you ‘the user’ maximum efficiency.

Volume flow:
120 to 2.650 m3/h

Differential pressure (Δp):
-850 to 3.500 mbar

Medium:
Air, Neutral Gases, Landfill and Biogas, Process Gases, Aggressive Gases

Compression:
Oil-free

The advantages of AERZEN Belt Driven Screw Compressors at a glance:

  • Extensive range of special accessories and various options
  • Lowest sound pressure levels due to the perfect interaction of silencer and acoustic hood
  • Fully integrated compressor package with air end, filter, silencer, noise enclosure and drive train
  • Reflective silencer, free of absorption material
  • Engineering and assembly completely in Aerzen, Germany

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Increasing flexibility – profitability starts when compressor systems are tailored to the process.

Leading companies in industries ranging from petrochemicals to cement have been relying on AERZEN for decades, and for good reason: The Delta Screw series is unrivalled in the assortment and flexibility of available models and how they can be adapted to a wide range of customer requirements. The Delta Screw Generation 5 plus series has set a whole new standard. The new benchmark class of dry-running screw compressors.

Wide range of applications in both indoor and outdoor installations

  • Conveyance or compression of inert gases
  • Pneumatic air or nitrogen transport of powders, bulk solids, ash, etc.
  • Aeration of sewage tanks
  • Blending of cement
  • Vacuum forming for the glass industry
  • Keeping waterways and ports ice-free
  • Creating oil barriers
  • Gas-air mixing installations
  • Oxidation air for power plants
  • Stationary unloading of tanker trucks
  • Vacuum production for the paper industry
  • Forced air for spun-bonded olefin production
  • Aircraft turbine starters

US Units

No
Type of technology
Screw Compressors
Design
Positive pressure , Negative pressure
Differential pressure (Δp)
-850 to 3.500 mbar
Volume flow
120 to 2.650 m3/h
Medium
Air, Neutral Gases, Landfill and Biogas, Process Gases, Aggressive Gases
Compression
Oil-free

For compressing air, nitrogen and other neutral gases.

Maximizing energy efficiency.

The single-stage, oil-free screw compressors in the Delta Screw Generation 5plus series are universal machines. They bundle all the know-how of a world market leader in compressor technology to offer you ‘the user’ maximum efficiency. These innovative machines are belt-driven to provide air and nitrogen applications at positive pressure, negative pressure, and nominal sizes. The flexible modular system allows for almost any combination of compressors and accessory components. The belt drive allows for optimal adaptation of the system to do the job at hand, as well as for any changes that may become necessary later. In addition, the belt drive allows for precise configuration – an important feature given that the greatest savings come from saving energy. This means, for example, that a 5% deviation in the volume stream means a 5% increase in energy consumption.

Generation 5plus . Five decisive advantages.

Delta Screw Generation 5plus is the fifth generation in Aerzen’s most successful line of compressor packages and also comes with five main advantages:

  • Energy efficient, reduced life-cycle costs
  • Significantly reduced noise levels
  • ATEX certified for spark suppression
  • Space-saving compact design
  • User friendly and low-maintenance

Outstanding rotor geometries.

Added performance at positive and negative pressures.

Another unique feature: the screw compressors in the Generation 5plus series come with a choice of special designed rotor profiles for added flexibility. VML compressors have a 3+4 profile and are ideal for applications up to pressure ratio 3 (final pressure over intake pressure). That means they are also perfect for negative pressure applications up to 70% vacuum (0.3 bar abs.). A special pre-inlet version can achieve up to 85% vacuum (0.15 bar abs.).

VM compressors have a 4+6 profile. They are tailor-made for positive pressure ranges (up to pressure ratio 4.5) and for intake volume flows of around 120 m³/h to 2,030 m³/h.

  • VML compressor up to max. pe = 2 bar (g)
  • VM compressor up to max. pe = 3,5 bar (g)

Πi.– adaptable outlets for the perfect configuration.

The available outlet port choices enable the AERZEN compressor to be adapted for the process at hand. The various outlets in the cylinder, called πi, are a measure of internal compression. This flexibility is decisive. In every Delta Screw Generation 5plus compressor, the choice of compressor type and πi can be optimized to best meet the desired pressure and volume flow. Over- and under-compression can be minimized, leading to maximizing the compressor’s efficiency.

Screw Compressor
Delta Screw Generation 5plus with belt drive
— Performances & dimensions

Negative pressure
Series Performance data Dimensions and weights
Pressure difference, mbar Volume flow*, m3/h Motor power, kw Sound pressure, max. db(A) Width (W), mm Depth (D), mm Height (H), mm Nominal size Weight, kg
VML 18 R-G5 -850 840 37 78 1.250 1.350 1.847 DN 80 840
VML 25 R-G5 -850 1.270 45 78 1.500 1.800 1.973 DN 125 1.100
VML 40 R-G5 -850 2.210 75 78 1.700 2.055 2.111 DN 150 2.100

Sound pressure level without blow-off noise, with acoustic enclosure.
* corresponds to the measured delivery volume flow converted to the customer-specific suction conditions p = 1,0 bar, t =20°C, rF = 0%

Positive pressure
Series Performance data Dimensions and weights
Pressure difference, mbar Volume flow*, m3/h Motor power, kw Sound pressure, max. db(A) Width (W), mm Depth (D), mm Height (H), mm Nominal size Weight, kg
VM 8 R-G5 3.500 500 55 74 1.250 1.350 1.776 DN 65 770
VM 15 R-G5 3.500 810 90 77 1.250 1.350 1.776 DN65 900
VML 18 R-G5 2.000 1.190 75 80 1.250 1.350 1.847 DN 80 840
VM 21 R-G5 3.500 1.250 132 76 1.500 1.800 1.973 DN 80 1.100
VML 25 R-G5 2.000 1.700 110 78 1.500 1.800 1.973 DN 125 110
VM 37 R-G5 3.500 2.030 200 77 1.700 2.055 2.111 DN 150 2.100
VML 40 R-G5 2.000 2.650 132 78 1.700 2.055 2.111 DN 150 2.100

Sound pressure level without blow-off noise, with acoustic enclosure.
* corresponds to the measured delivery volume flow converted to the customer-specific suction conditions p = 1,0 bar, t =20°C, rF = 0%

Information & documents

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Delta Screw G5plus

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Control technology

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Product overview

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Accessories

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