Product Overview automatic backwash sewage filter to give a clear, circulating water through the filter circulating water system in a variety of suspended solids, welding slag and other contaminants, so that each device in the water system to better use. Deal with the principle of automatic backwash sewage filter body made of carbon steel angle, stainless steel filter backwash butterfly valve and drain valve. After filtration of the water through the filter cartridge, impurities are trapped within the cartridge, open the blowdown valve closed at the same time when the need for sewage backwash butterfly valve, the water forced outward flow from the inlet to the filter cartridge, due to the decrease in pressure within the cartridge, part of the water to the cartridge and the cartridge backwash clean-up, debris discharged from the outfall, after the sewage, the sewage retreat valve recoil butterfly valve to open to return to normal operation. Device parameters ★ water temperature ≤ 97. Small resistance ★ C ★ filtration precision: 1mm ~ 3mm ★ pressure loss ≤ 0.016 MPa ★ Working pressure: ≤ 1.6Mpa device features ★ easy to install, simple to operate, no need to stop the demolition ★ water flux, according to the needs of customers filter mesh applying wide variety of industrial and civil cooling water of the refrigerating cycle, the heat exchange system, Landscape water, swimming water and the like.