The automatic drain valve or “auto drain” protects irrigation pipes from freezing in colder climates where that might be an issue. The auto drain has 1/2-inch or 3/4-inch male pipe threads (MPT) which thread into the outlet of a tee or elbow at the low point(s) of the piping for a zone. The auto drain has a seal which closes when the valve turns on and pressurizes the zone and opens when the valve turns off. This allows the line to be empty when the zone is not in use. However, this also means that the water from the zone— about 4 gallons in a 100-foot section
For protecting irrigation pipes against freezing in colder climates
Pressure-activated seal closes when water is on and opens when water is off
Mesh filter allows water to discharge and prevents dirt from entering sprinkler line
Control with a B-hyve smart controller for optimum water conservation
For outdoor use and cold water only
Opening pressure: 3 to 5 PSI (0,2 to 0,34 bars)
Closing pressure: 5 PSI (0,34 bars) or greater