Condensate drains of the CDE..L.. are designed for removing compressed air condensate not containing aggressive substances. This means that the liquids produced in the compressed air system will automatically be discharged to an atmospheric pressure level while ensuring no loss of compressed air.

In principle, condensate is always produced in a compressed air system. It occurs in the form of quantities of liquid, mainly consisting of water with some amounts of oil, or in the form of concentrated liquids, separated by filtration. The result often is rust formation and corrosion within the compressed air system leading to additional contamination of the condensate. 

To avoid condensate carryover and thus prevent the compressed air from being contaminated with coarse pollutions, the condensate must be removed immediately and directly from the compressed air system using condensate drains. Condensate drains of the CDE..L.. series have an integrated condensate collecting vessel separated from the compressed air flow to which the condensate is discharged and where it is stored temporarily. 

The condensate collecting vessel contains a wear-free, magnetic float level sensor controlled by an electronic control system. A condensate pilot controlled solenoid diaphragm valve is connected to the condensate collecting vessel. It is protected by an upstream dirt screen. When reaching the maximum level, the control system activates the solenoid valve and the condensate is drained. When reaching the minimum level, the control system closes the solenoid valve before any compressed air may escape (electronic level-controlled, loss-free condensate drain). 

All models of CDE..L.. condensate drains have a removable, screw connected condensate inlet and outlet, a pluggable connection for power supply and an approximately 2 m long ready-made cable with plugs (Schuko plug). The models CDE8LC to CDE500LC additionally offer a potential free alarm contact and a second, bottom condensate inlet. 

The condensate drains comply with the requirements of the Pressure Equipment Directive 97/23/EC and the EMC Directive 2004/108/EC.