What does a pressure compensating system maintain?

A pressure compensating system is designed to maintain a constant discharge pressure, regardless of variations in inlet pressure. This is particularly important in irrigation systems, where changes in inlet pressure can occur due to fluctuations in the water supply or other factors.

By ensuring that the discharge pressure remains constant, a pressure compensating system allows for consistent water delivery to the landscape being irrigated. This is beneficial because it helps prevent over or under watering, which can lead to plant stress or damage. Such systems are often found in situations where the pressure at the source can vary. They achieve this by using specialized components that adjust the flow to maintain the desired pressure.

In contrast, systems that focus on maintaining a constant flow rate or allowing variable pressure based on demand do not address the specific goal of pressure compensation and thus might not perform as reliably across varying conditions. Additionally, while minimizing pressure loss is an important aspect of system design, it does not specifically relate to the key function of maintaining a constant discharge pressure under varying inlet conditions.