What is the purpose of wearing rings in a pump?

The primary purpose of wearing rings in a pump is to minimize internal water leakage. Wearing rings, often made from durable materials such as ceramic or composite, are installed in areas where there is a high potential for wear due to the movement of fluids and components. These rings create a sealing effect that decreases the amount of fluid that can leak past key components, such as the impeller and casing, which is essential for maintaining the operational efficiency of the pump.

By controlling leakage, the pump can maintain its performance, prevent a drop in pressure, and ensure that the system operates effectively. Reducing internal leakage also helps to minimize energy losses that occur when water bypasses the intended flow path, contributing to improved overall efficiency.