News: Why Dry Air?

August 07, 2015

A compressor takes in Atmospheric Air, loaded with Moisture and contaminants.

At 24°C / 75°F and 75% relative humidity, a 500 SCFM/850 NM³/HR Air Compressor takes in about 340 litres of water in vapour form during a 24-hour period.

The Compressor After-Cooler Condenses about half the amount of water. As the air flows from the compressor into an Air Receiver and Air Distribution lines, it cools. The vapour condenses causing rust, scale, in the Air Receiver and ultimately leaks in pipes, valves, instruments, and air-operated tools and equipment.

Moreover, when exposed to freezing temperatures, the moisture in airlines will freeze and restrict airflow. A typical Oxair Desiccant Dryer pays for itself in less than a year by reducing and eliminating maintenance costs and downtime. Clean, dry air makes your operation more productive. As long as the compressed air is not exposed to temperatures below the temperature the air was Dried to in the dryer, (the dew point temperature),

No troublesome liquid will form in downstream air lines and equipment. Dry air keeps pneumatic equipment running at peak efficiency and extends the service life of air tools, motors, and cylinders. Dry air allows pneumatic instruments, valves, and controls to operate reliably, and helps ensure product and process quality.

NB: Dryer Air is Critical in Most Air Separation Applications

120 scfm Dryer 1,000 scfm Dryer 1,500 scfm Dryer

Regenerative Desiccant Compressed Air Dryers

• Designed for consistent-pressure dew points
• Eliminate water and freeze-up in low ambient temperatures
• Come completely assembled, piped and wired, with a full charge of activated Alumina Desiccant
• Only hook-up of utilities is needed for operation
• Include structural steel frame, complete with floor stand
• With SUPER QUIET MUFFLER
• Oxair Desiccant dryers lower the dew point of compressed air by Adsorbing the water vapour in the compressed air onto the surface of the desiccant
• Twin towers allow the inlet air to be dried in one tower while the desiccant in the other tower is being regenerated (dried)
• These dual-tower regenerative desiccant dryers are an economical and reliable way to dry compressed air to dew points below the freezing point of water or to reduce the moisture content of compressed air for use in critical process applications
• Compressed air is continuously dried through the use of two Identical Towers, each with a Desiccant Bed. While one tower is on-stream drying the compressed air, the other tower is off-stream being regenerated (dried out). The inlet air is fed via Pneumatic Actuated Valves controlled by a PLC. The towers are alternated in this manner so that dry desiccant is always in contact with the wet compressed air, resulting in a continuous supply of dry air downstream. All dryers should be installed with Pre-Filters and an After-Filter
  

  3000 SCM Dryer