Y-shaped filters are indispensable devices in pipelines, usually installed at the inlet end of devices such as pressure reducers, safety valves, level control valves, and pumps, to isolate impurities in the medium and protect the normal use of valves and equipment. Check valves, on the other hand, are a hydraulic control combination device that allows water to flow in only one direction in the pipeline. Its function is to prevent the medium in the pipeline from flowing backwards under any operating conditions, in order to achieve the purpose of preventing backflow pollution.
Y-strainer.pdf