What is the angle of the bars on a manually cleaned bar screen?

The angle of the bars on a manually cleaned bar screen is typically designed to optimize the capturing of debris while ensuring that flow is not excessively obstructed. An angle of 30 degrees is commonly used in the design of these screens because it provides a balance between effective screening of larger solids and allowing adequate water flow through the screen.

At this angle, debris is likely to lodge in the bar spacing, enabling operators to easily remove it without significant effort. The 30-degree angle also contributes to efficient hydraulic performance, minimizing the risk of backflow or increased head loss in the wastewater treatment process. This design choice supports the overall functionality of the wastewater treatment system, ensuring that unwanted materials are retained while allowing as much water as possible to pass through the screen for further processing.