With service centers nationwide and our 24-hour emergency parts guarantee, Kaeser customers can rely on the best after-sales support in the industry.
From global corporations to intelligent trades businesses; from food production to aerospace: Our customers benefit day in, day out, from the quality, safety, and cost efficiency that a Kaeser compressed air supply brings.
Learn about our development from a machine shop to one of the world's most successful manufacturers of compressed air systems.
In industrial automation and process industries, compressed air is more than just plant power—it is the direct driver behind control valves, pneumatic actuators, and precise measuring instruments. When moisture, oil carryover, or particulate contamination enters an instrument air line, the consequences are immediate: sluggish valve response, severe corrosion, and unexpected process downtime.
To protect sensitive downstream controls, facility engineers rely on ISA-7.0.01-1996 (Quality Standard for Instrument Air), established by the International Society of Automation.
The standard sets four distinct quality limits to ensure instrument air reliability:
A common misconception in plant design is that every instrument air application requires a desiccant dryer capable of delivering a constant -40°F (-40°C) pressure dew point. While desiccant dryers provide maximum freeze protection for outdoor piping in cold climates, operating them continuously carries higher capital costs and recurring energy penalties via purge loss or heating elements.
For climate-controlled indoor manufacturing plants, a properly sized refrigerated dryer achieving a 38°F–45°F dew point often satisfies the ISA rule—delivering full instrument protection while dramatically reducing power consumption.
In high-purity sectors like life sciences, food processing, and microelectronics, facilities frequently layer ISO 8573-1 air quality classes (such as Class 1.2.1 or Class 1.4.1) alongside ISA guidelines to achieve stricter purity. Choosing between oil-flooded compressors with high-efficiency filtration trains or completely oil-free air compressors depends on your risk tolerance, air quality monitoring goals, and maintenance budgets.