DESCRIPTION AND WORKING PRINCIPLES

The step screen is a mechanically cleaned screen that is ideal for inlet works of treatment plants, pumping stations and water inlet structures. It consists of a metal frame provided with a filtration area composed by fix and mobile lamellas. The distance between fix and mobile lamellas represents the screen meshes section. The frame is installed in the channel with an inclination angle usually 55°; wastewater passes through filtration area (lamellas) and screenings are captured and lifted up by a chain. Screenings are removed from the filtartion area and discharged .

MANUFACTURING FEATURES

• Frame: stainless steel AISI 304/316
• Installed Power: 0.55÷2.2 KW
• Spacing: 3÷6 mm
• Chain: Galvanized steel-stainless steel AISI 304/316
• Lamellas: stainless steel AISI 304/316
• Speed: 6 m/min
• Channel Width: from 400 mm to 2000 mm