Manual Bar Screen
Overview
Manual Bar Screens are simple, reliable, and cost-effective screening systems used for the removal of large floating and suspended solids from wastewater streams. They are commonly installed at the inlet of Sewage Treatment Plants (STP), Effluent Treatment Plants (ETP), pumping stations, and water intake structures where flow rates are relatively low and manual cleaning is practical.
The screen consists of a series of parallel bars mounted within a channel. Screenings collected on the bars are manually removed using a rake and disposed of appropriately.
Features
- Simple and robust construction
- No power consumption
- Low installation and maintenance cost
- Easy operation and cleaning
- Suitable for small and medium flow applications
- Corrosion-resistant construction available
- Long service life
Applications
- Sewage Treatment Plants (STP)
- Effluent Treatment Plants (ETP)
- Pumping Stations
- Industrial Wastewater Systems
- Water Treatment Plants
- Storm Water Drainage Systems
Working Principle
Wastewater flows through the screen channel while solids larger than the bar spacing are retained on the screen surface. The accumulated debris is periodically removed manually using a rake and collected in bins for disposal. This prevents clogging and protects downstream equipment such as pumps, valves, and treatment units.
Technical Specifications
| Parameter | Typical Range |
|---|---|
| Bar Spacing | 10 mm to 75 mm |
| Screen Width | As per channel size |
| Installation Angle | 60° to 90° |
| Material of Construction | SS304, SS316, MS Epoxy Coated |
| Cleaning Method | Manual Raking |
| Flow Capacity | Customized |
