Y-type filter is an indispensable filtering device for pipeline system of conveying medium, usually installed at the inlet end of pressure reducing valve, pressure relief valve, water level setting valve or other equipment, used to remove impurities in the medium to protect the normal use of valves and equipment. Suitable for: water, steam, oil and other media, the use of temperature is generally -40-300 ℃. (Note: The specific use temperature is subject to the design temperature of the filter). Y-type filter mainly consists of: main body, filtering net, central cover, central plug, central fasteners and so on. The filter design and manufacture reference standard: SH/T3411-1999, inspection reference standard: GB/T14382-2008.