The TRU-RAKE self-cleaning bar screen system is designed to remove debris from stormwater overflow systems, combined sewer overflow (CSO) systems and sanitary sewer overflow (SSO) systems.
The TRU-RAKE self-cleaning bar screen offers an economical and effective solution for preventing floating and suspended coarse matter from entering watercourses. It is designed for installation on stormwater weirs, decanter weirs, CSO weirs and flood discharge weirs. Thanks to its modular design, the TRU-RAKE adapts to all types of overflow system and is easy to install in existing structures.
Features
-Low maintenance
Self-cleaning without external energy
-Opens automatically if blocked
-Easy to adapt to existing installations
-Stainless steel construction
Application scope
TRU-RAKE self-cleaning bar screen system models vary according to bar spacing, design water depth, maximum acceptable pressure drop, number of modules and overall length. Models are designated GTR-***-***. Units are modular in design, with a single unit measuring up to 20 ft (6 m) in length. Units are currently designated with an asterisk due to the wide variety of model options.
The TRU-RAKE self-cleaning bar screen system has a standard bar opening of ½ inch (12 mm) to 2 inches (50 mm). During an overflow, the rising water level upstream causes the float to lift the cleaning rake to its upper position before the water flows over the weir. The cleaning rake remains in this position for the duration of the overflow. At the end of overflow, the float is lowered as the upstream water level decreases and, without the use of external energy, the cleaning rake is pulled through the bars, removing the retained debris from the screen surface. This debris is then transported in dry weather to the wastewater treatment plant for disposal.
If the bar screen becomes clogged with debris, the TRU-RAKE is designed to pivot up and out of the flow path as hydrostatic pressure increases. This prevents any negative impact on upstream water levels. When the water level drops, the bar screen returns to its initial position under its own weight.
