The pre filter flow testing machine is mainly suitable for testing the filtration efficiency of filters. The equipment system adopts a 7-inch touch screen and Japanese Mitsubishi PLC control, and uses a self-developed system to record the entire testing and data. The testing machine is assembled with 4080 aluminum profiles and powder coated sheet metal frame. The sheet metal is sprayed with A3 #, and the internal water tank and pipeline parts are welded with 304 # stainless steel. The appearance of the device is elegant, simple, and bright. By using a testing machine, real-time monitoring and reading of various testing parameters and data are carried out on the pre filter. The design structure refers to the bathroom industry standard QB-T 4695-2014 for household and similar use pre filters, which can meet various types and standards of bathroom product testing in terms of functionality.  

The testing machine mainly consists of a testing area, a control system, a mixing system, a particulate matter discharge area, a water supply system, and other parts. Supply water through variable frequency constant pressure. The PLC programmable controller controls the opening and closing of the solenoid valve water source, and uses high-precision flow meters for real-time flow/cumulative flow and other related data collection and automatic data storage. By using constant pressure water supply, flow data collection, particulate matter weight and other related test data, calculate the retention rate of the tested pre filter through standard formulas