1.1 according to the using position filter and use, can be divided into two categories: coarse filter and fine filter (strainer English)
粗过滤器主要应用于泵、流量计、阀门前，以保护设备不受大的金属颗粒磨碎，其精度基本是几百微米以上。精细过滤主要是净化流体，保护工艺安全。其精度范围基本在1微米到30微米之间。
The coarse filter is mainly used in pump, flow meter, a valve metal particles before, to protect the device against large ground, its accuracy is basically a few hundred microns above. Fine filtration is mainly cleaning fluid, security protection technology. The accuracy of the scope of the basic 1 micron to 30 microns.
1.2 按照制造设计要求可以分：压力容器和非压力容器
1.2 according to the design requirements can be divided into: the manufacture of pressure vessels and pressure container
按照压力容器设计和制造的过滤器壳体执行GB150或者ASME标准。非压力容器执行 SH/T3411或HGT 21637标准执行。
In accordance with the filter shell of pressure vessel design and manufacture of the execution of the GB150 or ASME standard. Non pressure container implementation of SH/T3411 or HGT 21637 standards.
1.3 根据使用介质可分为：气体过滤器和液体过滤器- x. {* v( u) g$ F; z
1.3 according to the use of media can be divided into gas and liquid filter: filter - X. {* V (U) g$F; Z
气体过滤器适用于气-固分离流域，可用于气体净化、分成回收等。液体过滤器适用于液-固分离领域，如润滑油过滤、石油化工行业过滤以及污水处理等。
Gas filter suitable for gas-solid separation basin, can be used for gas purification, divided into recovery etc.. Liquid filter is suitable for the liquid - solid separation field, such as lubricating oil filter, oil filter, such as chemical industry wastewater treatment.
