internal autodrains

Internal Autodrains for Compressed Air Systems

Internal autodrains are an important component in compressed air systems, designed to automatically remove condensate made up of water and compressor lubricants. By eliminating the need for manual draining, autodrains help protect equipment, maintain air quality, and reduce ongoing maintenance requirements.

As compressed air cools, moisture naturally forms within the system and must be removed to prevent corrosion, contamination, and performance issues. An internal autodrain automatically discharges condensate from the system without releasing compressed air, ensuring efficient and reliable operation.

Internal autodrains operate using a float-controlled mechanism. Condensate collects in the valve’s reservoir and, as the liquid level rises, the float activates the valve. Control air pressure is then applied to open the normally closed valve, allowing condensate to be discharged before resealing once drainage is complete.

Automatic drains are particularly beneficial where filters or drain points are difficult to access, or where manual draining would disrupt equipment that operates continuously. They are especially suitable for applications where large volumes of condensate can accumulate quickly.

With over 30 years of industry experience, Compressed Air Systems UK provides expert advice and high-quality internal autodrain solutions. If you have any questions or need help selecting the right autodrain for your system, contact our team on 01217 533330 — we’re happy to assist.