Backwash Filter

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DCG industry company

Xinxiang city, China

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Backwash filter
The automatic backwash filter is mainly composed of a filter housing, stainless steel filter screen, electric blowdown valve, and blowdown device. When the water filter is working, the backwash butterfly valve plate is opened, and the water enters the filter element from the inlet, then flows through the filter screen, and then flows out of the system, and the impurities are intercepted inside the filter element. When the water filter needs sewage, you can close the butterfly valve plate and open the sewage valve.
Filter medium
Remove all kinds of viscous substances, colloidal particles, silt, and other mechanical impurities from water.
Equipment performance
Automatic control system:
The intelligent control system is sensitive, accurate, intuitive, and easy to operate.
High-performance precision filter element:
V-shaped slot precision filter element: the V-shaped opening has a good backwashing effect, and is good at filtering pollutants and impurities that are difficult to backwash, such as microfiltration, oily sludge, soft caking, etc.
Working principle
Under normal circumstances, the water flow guide valve is open, and the water flows through the filter cartridge and then flows out from the outlet. When the drain valve is open, the total water flow increases, the flow velocity increases, and the impurities on the filter screen wall are washed and discharged from the drain valve; when the water flow guide valve is closed and the drain valve is open, the water is forced to flow through the filter screen at the front of the screen, and then most of the filtered water flows out from the outlet, part of the filtered water will flow back to the inside of the filter screen to backwash the screen, which achieves the effect of washing impurities adhering to the screen from the outside of the filter screen, and impurities are still discharged through the sewage outlet.

                                                            Housing
                                                            carbon steel, 304 stainless steel, 316L stainless steel
                                                        
                                                            Filter screen
                                                            304 stainless steel, 316L stainless steel
                                                        
                                                            Brush holder
                                                            304 stainless steel, 316L stainless steel
                                                        
                                                            Blowdown valve
                                                            cast iron, stainless steel
                                                        
                                                            Controller
                                                            Copper
                                                        
                                                            Sealing ring
                                                            PTFE

Application

Hot water circulation system in the heating system
Central air conditioning, chillers, chillers cooling and refrigeration circulating water system
Industrial and civil cooling water, industrial cooling circulating water system; geothermal water circulation system for bathing, heating; etc.

Advantages of overall structure: