Condensate drains. GDZ series
A collection of atmospheric water and oils mixed with carried over compressor lubricants makes condensate the largest volume contaminant in a compressed air system. This acidic and aggressive liquid is removed from the compressed air system by coalescing filters, refrigeration dryers and coolers. The effective drainage of this condensate is paramount to the ongoing health and wellbeing of the whole compressed air system.
Unlike the manual and automatic condensate drains, the Gardner Denver's electronic condensate drainers, the GDZ give the benefits of the float and timer drain without the potential for wasted compressed air. The GDZ drain senses when there is condensate inside the internal reservoir and opens to expel the condensate liquid then quickly closes before allowing any valuable compressed air to escape. This gives you the peace of mind that your condensate is being drained without the operator intervention and not wasting energy or compressed air.
Electronic condensate drains with alarm contact monitor condensate drainage. If a fault has occurred, i.e. if the condensate cannot be discharged, the electronic control board of the condensate drain generates an alarm signal. This allows timely detection and avoidance of damage caused by condensate to the downstream compressed air system or to the production, which may sometimes lead to immense costs.
Electronic condensate drains of the GDZ Series feature:
• Non-wearing magnetic-core level control for optimised and loss free discharge of condensate.
• Integrated dirt screen between level measurement and drain valve to protect the diaphragm valve with alarm monitoring.
• Diaphragm valve with large cross-section and condensate pilot control for extended service life.
• Potential-free alarm contact (except GDZ120, GDZ400).
Non-wearing magnetic-core level control
The magnetic-core level control employs fixed switching points to operate the valve. The magnetic core signal transmitter position is detected by non-contact magnetic sensors:
• Independently of the condensate type (water/oil).
• Independently of the working pressure. The collection tank integrated in the condensate drain is always used at optimum efficiency. This results in a minimised number of switching cycles and thus, in a maximum service life of the drain valve. No calibration required!
Integrated dirt screen
The dirt screen which is integrated between the level control and the drain valve:
• Retains any contaminants that could damage the diaphragm valve.
• Triggers an alarm, also if the screen is clogged by dirt.
• Allows the drain to be cleaned easily and rapidly.
2) Condensate from aftercooler or refrigeration dryer already drained upstream – only for residual oil content or small quantities of condensate
