Introduction
The document provides technical specifications and features of the GVL Mechanical Bar Screens used in waste water treatment plants for coarse screening. These screens are designed for both municipal and industrial applications.

Specifications
The GVL Mechanical Screens consist of a steel frame and a bar filter, with a galvanized steel chain transmission shaft and upper sprocket. The filtration zone includes individually replaceable bar sections. The screens are available in various models with channel widths ranging from 400 mm to 1,200 mm, and a standard screening zone height of 1,000 mm. The opening sizes range from 10 mm to 40 mm, and all models have an installed power of 0.55 kW.

Design and Functionality
The GVL screens feature a reliable, low-cost design with a 75-degree incline angle. They include precision laser-cut raking tines and recessed guide channels for drive chains, reducing exposure to screenings. The design eliminates the need for a lower sprocket and bearings, reducing service requirements.

Operation
Waste water flows into the upstream end of the unit, where screenings are captured on the bars. Chain-driven rakes clean the bars and convey solids to the discharge point, where they are removed by a wiper and discharged into a dumpster, conveyor, or compactor.

Benefits
The GVL screens offer quick and efficient solids removal with 2 or more cleaning rakes. The design ensures reduced service requirements, as there is no need to remove the screen from the channel.

Technical Features

• 10 mm to 40 mm spacing
• Channel width: 400 mm to 1,200 mm
• 75-degree incline angle
• Precision laser-cut raking tines
• Recessed guide channels for drive chains
• No lower sprocket or bearings

Accessories
The screens can be equipped with a conductive level probe complete with a bracket.

Conclusion
The GVL Mechanical Bar Screens are designed to provide reliable and cost-effective solutions for waste water treatment, with a focus on reducing maintenance and operational costs.