A typical compressor installation has a compressor, aftercooler, dryer, filter(s) and a receiver (airtank). One unit, the TEC-55, electronically controls all draining points. This multi-voltage sequential controller can drain up to four outlets. The individual cycle requirements, as well as the overall time cycle, can be adjusted according to your specific requirements. The TEC-55 offers a range of valves specifically designed for filters, general purpose, high pressure or stainless steel.