Irrigation Terms Part 1

The device, required by law, on an irrigation system that prevents water from re-entering the potable water lines once it flows into the irrigation pipes

The device that sends timing commands to remote control valves for actuation

The pattern of water applied to an area by a sprinkler head

The pressure a designer uses to determine spacing distances and flow for sprinkler heads. This is determined by subtracting estimated friction losses from the static water pressure

Measured in in/hr low volume low pressure method of applying water

The pressure reading in a pipeline system with water flowing

The movement of water through the irrigation piping system, causes friction loss

Feet per second of velocity of water moving in a pipe

the loss of pressure or force as water flows through the piping system

Gallons per minute or unit of measure of flow