Y-shaped filters are an indispensable filtering device in pipeline systems for conveying media. They are usually installed at the inlet of pressure reducing valves, relief valves, constant water level valves, or other equipment to remove impurities from the medium and protect the normal use of valves and equipment. Suitable for media such as water, steam, oil, etc., with a usage temperature generally between -40~300 ℃. (Note: The specific usage temperature is based on the design temperature of the filter.) The Y-shaped filter mainly consists of: main body, filter screen, middle cover plate, middle plug, middle fastener, etc. The design and manufacturing reference standards for this filter are SH/T 3411-2017 and HG/T 21637-1991. The inspection reference standards are GB/T 14382-2008.