Delta Screw mit Riemenantrieb (innenansicht)

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

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

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

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 5^plus 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 5^plus. Five decisive advantages.

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

Negative pressure
Series	Performance data				Dimensions and weights
Series	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
Series	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