Dorot Control Valves have been delivering successful control valve solutions for back-flush systems for the last 35 years. Due to its strong relationship with leading filter manufacturers around the world, Dorot has succeeded developing high-end solutions available in the marketplace with an understanding of filtration system’s needs. The valves are designed and manufactured in-house to offer the highest performance and reliability.
The principle of back-flushing consist in applying relatively clean, reverse-flow through the filter element and discharging the water flow that is carrying dirt and particles out of the system through a drain line. The back-flushing procedure requires numerous valves (at least 4 per filter) operated in a synchronized manner, making it complex to operate manually and costly to automate. Using hydraulic back-flushing valves simplifies the synchronization of the control system, minimizes the number of valves required, and allows valve operation with minimal or no electric power consumption.