Irrigation technology has come a long way since the first in-line pressure regulator was introduced to the industry in 1966. One standout client, Croc Valley Irrigation, has fully embraced the benefits of this innovative solution. That is why they supply and design pressure regulators and sprinkler packages.

Croc Valley Irrigation, a leader in agricultural irrigation solutions, recognises the importance of precise water management.

Maintaining your sprinkler package and regulators on your pivots is almost non-negotiable. It is through this principle that you have consistent water distribution, prevent any unnecessary damage, save on spending and extend the lifetime of your pivot. It is also through this practice that you can achieve consistent results through your pivot.

Why do you need a pressure regulator?

Every irrigation system faces pressure fluctuations, which can disrupt the flow rates and pressures needed for optimal performance. Pressure regulators are used to ensure a consistent and reliable water distribution. This precision is vital for maintaining the intended distribution pattern and application rate, ensuring that sprinklers operate efficiently. Without a pressure regulator, you risk issues like altered throw radius and inconsistent application rates, which can negatively affect crop yield and quality. By prioritising this detail, you help safeguard your crops and increase your harvest potential.

How do high-pressure regulators work?

High-pressure regulators function through a precise mechanism. When water enters the regulator, it flows through an inlet and across a fixed seat into a critical flow area. Here, it moves into a hollow cylinder connected to a diaphragm. This setup ensures that as the inlet pressure increases, the valve closes, and as the pressure decreases, the valve opens. This dynamic action maintains the desired outlet pressure, which is controlled by the compressive strength of a spring. This mechanism ensures consistent and reliable water pressure for optimal irrigation performance.

If the water flow changes by more than 10%, it might be because the nozzles are partly blocked or the pressure regulators are not working well. Pressure regulators, like sprinklers, do not last forever. If you think your regulators are getting old, it is a good idea to ask your irrigation equipment dealer to check them. Replacing old regulators can save you time and money by avoiding wasted water and potential crop losses.

Pressure regulators control excessive and varying inlet pressures to a constant outlet pressure. Without regulators, sprinkler FLOW would vary. In addition to flow, when sprinklers operate outside the recommended pressure range, it affects droplet size, radius of throw, and distribution pattern.

When pressure regulators wear out, water is not distributed evenly. This leads to some areas getting too much water and others not enough, which can hurt crop yields. The problem is worse if these areas are on the outer edges of the irrigation system.

How to choose the right pressure regulator

Selecting the right pressure regulator is crucial, and several factors need to be taken into consideration to ensure perfect performance. Evaluate the range of inlet pressure fluctuations, required outlet pressure, and allowable variation, along with specific application needs. This approach to irrigation exemplifies best practices, helping you avoid costly breakdowns, extend equipment lifespan, and improve water efficiency.

Regular maintenance is another cornerstone of proper irrigation. You need to understand the importance of servicing pressure regulators and sprinklers on your centre pivot systems, ensuring uniform water distribution and preventing over- or under-watering. By keeping your equipment in top condition, you minimise water wastage, enhance crop quality, and extend the longevity of your irrigation systems.

Contact information

For more information, visit Croc Valley Irrigation’s website at www.crocvalleybesproeiing.co.za. For any assistance with the design and selection of your sprinkler packages, contact Gys Coetzee at  (+27)73-171-8115.