What Is a Drain Tap?
A drain tap is a device designed to discharge water from plumbing systems, safeguarding against freeze-induced damage. It is commonly fitted in exterior water systems, including outdoor spigots, to avert freezing.
These taps come in two varieties: automatic and manual. The automatic version employs a temperature sensor to drain water preemptively when freezing conditions are detected, whereas the manual variant necessitates user intervention to open the valve for drainage, followed by securing the tap with a frost-proof design.
Utilized in applications like garden hoses, external faucets, cold-region indoor plumbing, and HVAC systems, drain taps comprise valves, drainage outlets, frost-proof mechanisms, and temperature sensors. Their benefits include freeze prevention, straightforward installation, energy efficiency, and cost-effectiveness, with the manual models additionally noted for their low maintenance needs. For effective use, it’s crucial to choose the appropriate type for freeze-prone areas and, in the case of manual taps, ensure water is expelled before the winter season and reintroduced in spring.