Recoil sewage filter is applied to a variety of water supply systems, process water systems and industrial cooling water systems, especially in the 24 hours of continuous operation without stopping the machine system, a variety of mechanical impurities, water can be filtered to ensure safe and reliable operation of the system equipment. 
 The main parameters 
 (1) high filtration precision: a wide range of filtration precision, d = 0.5 ~ 1.2mm; 
 Filtered water: The filter pressure loss, water processing, up to 7000m3 / h; 
 (3) long life: composed of stainless steel wedge-shaped strip of filter and high-quality carbon steel cylinder; 
 4 integrated low cost: without having to remove and replace the filter life of up to 20 years; 
 5 simple efficiency: no access bypass without having to disassemble, clean-up filter recoil effect. 
 Working principle 
 Recoil sewage filters are usually of high quality carbon steel cylinder, the special structure of the stainless steel wedge-shaped filters, flow pilot valves and sewerage, such as the special requirements of users, can also be made whole stainless steel structure. When the filters work, the flow direction valve is turned on, the flow from the inlet into the filter through the filter to the exit. When the filter needs to sewage, close to the flow direction valve, open the drain valve, the flow through the filter into the inside part of the water export into the system, the remaining water from the filter after the first half of the outside into the inside through the outfall discharge play a role in reverse auto-flushing filter. So that the entire process of flushing system to normal operation with no downtime. 
 Points both manual and electric opening mechanism of the flow direction valve, a pressure sensor when using electric opening mechanism, the import and export filters, Automatic cleaning according to the before and after the differential pressure sewage, the sewage outfall installed electric ball valves, flow-oriented valve and sewage electric ball to achieve the linkage. 
 Installation Instructions 
 Recoil sewage filter should be installed horizontally or vertically when mounted vertically, the flow direction is from top to bottom; installation should pay attention to the direction of the arrow on the housing and water reverse consistent, normal operation, the flow direction valve is turned When the need of sewage, close the flow direction valve, open the drain valve until the discharge water to clear so far, close the drain valve, open the flow direction valve to complete the sewage process. 
 Manually open the flow direction valve, drain valve owned by the user. 
 Random supply of the electric flow direction valve is opened, the electronic control box and sewage electric ball.