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SCREW COMPRESSOR STAGES VMW WITH WATER INJECTION

SCREW COMPRESSORS

Overview

SPECIALLY DESIGNED FOR OIL-FREE AIR COMPRESSORS OIL-FREE. FULLY EFFECTIVE. THE NEW GENERATION OF AERZEN SCREW COMPRESSORS.

Screw compressors with water injection cooling become more and more accepted for the generation of absolutely oil-free compressed air, whereas the function of oil is mostly taken over by water. The rotors of the VMW water stage are made of high-alloyed noncorrosive steel with a very high accuracy in contour and profile even at higher pressures. Despite singlestage operation mode the VMW water stages can generate pressures up to 13 bar. As it has been standard up to now high investment costs for oil-free compressor plants are now decreasing because of the application of the new Aerzen compressor stage with water injection. The VMW stage is the core of these plants. Drive is provided by an electric motor in combination with a frequency control.

The VMW water stage is supplied as component to manufacturers of air compressors who manufacture the accessories resp. the plant components (cooler, base frame, control etc.) themselves resulting in the following advantages:

• Increased efficiency for the generation of compressed air
• Protection of the components due to lower operating temperature
• Oil-free compression
• A thousand fold well-proven technology for oil-free compressor stages
• Optimized efficiency because of the use of high-quality materials
• Insensitiveness with regard to water quality
• Reduced investment costs for the components of the compressor package

Technical data

TYPE OF TECHNOLOGY

SCREW COMPRESSORS

VOLUME FLOW

2.5 to 9.5 m3/h

MEDIUM

AIR , NEUTRAL GASES

Application

Developed exclusively for direct drive, the powerful VMW water stages from AERZEN help satisfy compressor manufacturers’ growing demand for the economic production of 100% oil-free pressurized air. For systems with constant speeds as well as for compressors with variable, demandcontrolled speeds. For mobile as well as for stationary compressors.

FOR USE IN:

• Base load systems
• Peak load systems, and
• stand-alone, controlled systems