What Is an Index Sprinkler Valve?

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By Valerie Becker

Have you ever heard of an index sprinkler valve? If you haven’t, don’t worry – many people aren’t aware of what it is.

An index sprinkler valve is a type of valve used in irrigation systems to control the flow of water to different areas. In this article, we will take a closer look at what an index sprinkler valve is, how it works, and why it’s important.

What Is an Index Sprinkler Valve?

An index sprinkler valve is a type of irrigation valve that has multiple outlets connected to one input. Each outlet can be turned on or off independently using the indexing system. This allows for precise control over where water is distributed in an irrigation system.

How Does It Work?

The indexing system on an index sprinkler valve works by rotating a disc inside the valve body. The disc has several holes drilled into it that line up with the outlets when rotated into position. Each hole corresponds to a different outlet and allows water to flow through when aligned properly.

To turn on or off a specific outlet, the disc is rotated until the appropriate hole lines up with the inlet. Water then flows through that outlet while the others remain closed.

Why Is It Important?

The ability to control water flow to different areas of an irrigation system is critical for efficient watering and preventing waste. With an index sprinkler valve, you can Target specific areas that need watering without wasting water on areas that don’t.

Additionally, having multiple outlets connected to one input simplifies installation and reduces costs compared to installing separate valves for each area needing watering.


An index sprinkler valve may not be as well-known as other types of valves used in irrigation systems, but it plays a critical role in efficient watering practices. Its ability to control water flow to multiple outlets from one input makes it a cost-effective and practical solution for many irrigation systems.