Definitions for "Drain Valve"
Keywords:  heater, valve, manual, tank, petcock
A valve used to drain the irrigation system for repairs or freeze protection. Referred to as "Manual Drains" or "Automatic Drains".
a valve used to drain water from a line. It can be a manual drain valve in mains or laterals or an automatic drain valve in nonpressurized lines.
any valve used to drain water from a line.
Keywords:  popular, option
a popular option