Pioneers in Compressed Air               Call: 011 452 1706    
Heatless desiccant dryers are the simplest type of desiccant dryer available and have long been the dryer of choice for many industries and applications. They are simple, reliable, and cost- effective solutions for small to medium flow systems, often the only viable technology available.
The general working principle of desiccant air dryers is simple: moist air flows over hygroscopic material (desiccant) and is thereby dried. The exchange of water vapor from the moist compressed air into the desiccant causes the desiccant to gradually be saturated with adsorbed water.

Small Capacity Adsorption Dryers
RHL E series - up to 3.5m3/min

Medium Capacity Adsorption Dryers
RHL C series - up to 16.4m3/min

Large Capacity Adsorption Dryers
RHL M series - up to 136.5m3/min

 

Features and Benefits
  • Pipes – All pipes are expertly welded to ensure a non-leaking robust construction which offers little resistance to air flow.
  • Valves - Specifically designed shuttle valves require no lubrication and have low maintenance.
  • Vessels - All vessels are government certified to PD 5500:2015 standards and are supplied with certificates of compliance. ASME 8 as an option.
  • Pressure Gauges – All dryers are supplied with pressure gauges to enable the user to monitor the correct operation.
  • Electronic Enclosures – Enclosures for the electronic controllers are to IP52 standards allowing for safe user operation and protection of circuitry.
  • Display Panel – A LED display panel mimics the operation of the controller thereby indicating the current status of the electronically controlled purge and re-pressurisation valves.
  • Silencers – A unique range of silencers may be fitted which will reduce vessel purge noise down to 75 dba.
  • Operating Voltage – A choice of operating voltage is available according to the client’s requirements. All controllers have standard 220V 50 Hz operating voltage.
  • Technical Support – Tegnon offers an experienced team of maintenance personnel capable of delivering the highest level of service in the industry. Your problem becomes our priority.
  • Optional Service Contract - We also offer all our clients our TEGNON ULTRACARE service contract which will allow you complete peace of mind and accurate maintenance budgeting for your business.
Operation
  • The Tegnon RHL dryer consists of two separate adsorbent chambers. One chamber dries the air or gas while the other is being reactivated - providing a continuous drying operation.
  • The wet air or gas enters at the bottom of the left chamber and passes upwards through the adsorbent where it is dried to dewpoints as low as -70ºC.
  • The dry air passes through the outlet near the top of the left chamber. At the same time, a small amount of the exit air is expanded across a valve between the twin chambers. This purge air flows back through the adsorbent in the right chamber - reactivating it - passing out through the purge exhaust.
  • At the end of the cycle the process is automatically reversed with the right chamber doing the drying while the left is being reactivated.
  • The Tegnon RHL dryer unit can be put into operation and will allow flow even if adsorbent beds become inadvertently saturated.
This website does not store any personal information. It does use cookies for functionality and analytics. About cookies