Every screw compressor pulls moisture out of the air and pushes it into your pipes. That water is a problem. It rusts the line from the inside, makes pneumatic valves stick, washes the lubrication off air tools, and leaves surface defects on finished products. A refrigerated air dryer sits right after the compressor and takes that water out before it reaches your equipment.
The OSMAN SA-150 is a 150hp refrigerated air dryer built for mid to large compressed air systems, the kind you find on 100 to 150HP screw compressor installations. It cools the compressed air, condenses the water vapor into liquid, and drains the water off automatically. What reaches your machines is dry air, steady and consistent.
If you are shopping for an industrial compressed air dryer around the 750 CFM class, the SA-150 sits right in that range. It is sized to match a 150hp screw air compressor running at full or partial load, without forcing you to over-buy.
The pressure dew point stays in the 2 to 10 °C range. That is dry enough for most industrial work, including machining, spray painting, packaging, and general plant air. If your process needs much drier air, below negative 20 °C, an adsorption dryer is the right tool, and we will tell you so when you ask. No reason to sell you the wrong machine.
Q1: What does a 150HP refrigerated air dryer actually do?
A: It removes the moisture from the compressed air coming out of your compressor. The air is cooled, the water vapor condenses into liquid, and the liquid drains away automatically. Your machines get dry air instead of wet air.
Q2: What size compressor is the SA-150 meant to match?
A: It works as a refrigerated dryer for 150hp screw air compressor systems, handling about 21.5 Nm³/min. If your compressor output is higher or lower, tell us the actual free air delivery and we will size it correctly.
Q3: What dew point can I expect?
A: The standard unit delivers a pressure dew point of 2 to 10 °C. That covers most manufacturing, spraying, and pneumatic tool applications. If you need air below negative 20 °C, you need an adsorption dryer, and we can advise on that too.
Q4: How much electricity does it use?
A: The refrigeration compressor is roughly 3.2 kW at full load. That is a small fraction of what a desiccant dryer of the same capacity would draw, which is why most plants choose refrigerated drying.
Q5: Does it work in hot climates?
A: Yes. The standard unit handles inlet air up to 45 °C. For hot sites or high temperature compressors we offer a version rated to 80 °C inlet. Tell us your site conditions when you order.
Q6: How do I maintain it?
A: Replace the inlet filter element periodically, check that the automatic drain works, and keep the condenser fins clean. The refrigeration circuit is sealed and needs no routine service. The maintenance schedule ships with the machine.




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Air Compressor,
PM VSD Screw Air Compressor,
Air Tank,
Air Compressor Parts,
Air Dryer ,
Precision Filter