Industrial Z-TD-1 Automatic Tank Drain Valve Assembly

The Z-TD-1 Automatic Tank Drain Valve Assembly, widely referenced in Champion literature as the ZTD1 and designated AS-2201-04, is a replacement auto-drain valve that automatically purges condensate from an air compressor tank as the unit cycles, helping keep the tank moisture-free. It is designed for Champion air compressors that use centrifugal unloaders or unloader-type pressure switches and is sold as a direct replacement for the original ZTD1 under the AS-2201-04 designation. Market listings emphasize its function of removing condensate and moisture from the tank without manual effort or air loss, making it a common retrofit for aging or failing ZTD1 assemblies. Retailers such as Pacific Air Compressors list the Champion ZTD1 Automatic Tank Drain Valve Assembly Z-TD-1 among their stock, reflecting its status as a standard aftermarket replacement part for Champion auto-drain systems. Available under the ZTD1/AS-2201-04 labels across multiple suppliers, the valve assembly serves as the automatic drainage solution that supports reliable condensate removal in Champion tanks without requiring operator intervention.