What is the primary function of a valve head in an irrigation system?

The primary function of a valve head in an irrigation system is to control the flow of water to sprinklers. This component acts as a critical control point within the system, allowing for the regulation of how much water is distributed to the various parts of the landscape. By opening and closing, the valve head can manage water pressure and ensure that each area receives the appropriate amount of water for effective irrigation. This enables efficient use of resources and helps to prevent over-watering or under-watering of plants.

The other functions described, such as measuring water pressure, increasing water velocity, or distributing chemicals, are performed by different components within an irrigation system. For example, pressure regulators or gauges handle measurements, while pumps might affect velocity. Chemical injectors are specialized devices used for incorporating fertilizers or pesticides, not the valve head. Thus, focusing on water flow control highlights the essential role of the valve head in maintaining an effective irrigation system.