(1)PALL滤芯要装在泵的吸油口处：
泵的吸油路上一般都安装有表面型滤油器，目的是滤去较大的杂质微粒以保护液压泵，此外滤油器的过滤能力应为泵流量的两倍以上，压力损失小于0.02MPa。
(2)pall滤芯安装在泵的出口油路上：
此处安装滤油器的目的是用来滤除可能侵入阀类等元件的污染物。其过滤精度应为10～15μm，且能承受油路上的工作压力和冲击压力，压力降应小于0.35MPa。同时应安装
安全阀以防滤油器堵塞。
(3)pall滤芯安装在系统的回油路上：这种安装起间接过滤作用。一般与过滤器并连安装一背压阀，当过滤器堵塞达到一定压力值时，背压阀打开。
(4)pall滤芯安装在系统分支油路上。
(5)pall滤芯单独过滤系统：大型液压系统可专设一液压泵和滤油器组成独立过滤回路。
pall滤芯液压系统中除了整个系统所需的滤油器外，还常常在一些重要元件(如伺服阀、精密节流阀等)的前面单独安装一个专用的精滤油器来确保它们的正常工作。

介 质：一般液压油 磷酸脂液压油 乳化液 水-已二醇
材 质：玻纤滤纸-BN 不锈钢编织网-W 木浆滤纸-P 不锈钢烧结网-V
过滤精度：1μ ~ 100μ
工作压力：21bar-210barHC 9400FKN13H, HC 9400FKN26H, HC 9400FKN39H, HC 9400FKP13H, HC 9400FKP26H, HC 9400FKP39H, HC 9400FKS13H, HC 9400FKS26H, HC 9400FKS39H, HC 9400FKT13H, HC 9400FKT26H, HC 9400FKT39H, HC 9500FS-UJH, HC 9500SUH4H, HC 9500SUJ4H, HC 9500SUJ8H, HC 9540SUJ4H, HC 9540SUJ8H, HC 9540SUK4H, HC 9600FDP4J, HC 9600FKN13H, HC 9600FKN16H, HC 9600FKN16Z, HC 9600FKN4H, HC 9600FKN8H, HC 9600FKP13H, HC 9600FKP16H, HC 9600FKP4H, HC 9600FKP8H, HC 9600FKS13H, HC 9600FKS16H, HC 9600FKS4H, HC 9600FKS8H, HC 9600FKT 4H, HC 9600FKT13H, HC 9600FKT16H, HC 9600FKT8-60, HC 9600FKT8H, HC 9601FKN13H, HC 9601FKN16H, HC 9601FKN4H, HC 9601FKN8H, HC 9601FKP13H, HC 9601FKP16H, HC 9601FKP4H, HC 9601FKP8H, HC 9601FKS13H, HC 9601FKS16H, HC 9601FKS4H, HC 9601FKS8H, HC 9601FKT13H, HC 9601FKT16H, HC 9601FKT4H, HC 9601FKT8H, HC 9601FUP4J, HC 9606FKN13H, HC 9606FKN4H, HC 9606FKN8H, HC 9606FKP13H, HC 9606FKP4H, HC 9606FKP8H, HC 9606FKS13H, HC 9606FKS4H, HC 9606FKS8H, HC 9606FKT 4H, HC 9606FKT13H, HC 9606FKT8H, HC 9650FKN16H, HC 9650FKN8H, HC 9650FKP16H, HC 9650FKP8H, HC 9650FKS13H, HC 9650FKS16H, HC 9650FKS6H, HC 9650FKS8H, HC 9650FKT16H, HC 9650FKT8H, HC 9651FKP16H, HC 9651FKP8H, HC 9651FKT16H, HC 9651FKT8H, HC 9800 FKN 8, HC 9800 FKN 8H, HC 9800FKD4H, HC 9800FKN4H, HC 9800FKN8H, HC 9800FKP4H, HC 9800FKP8H, HC 9800FKS13H, HC 9800FKS4H, HC 9800FKS6H, HC 9800FKS8H, HC 9800FKT4H, HC 9800FKT8H, HC 9801FKN4H, HC 9801FKN8H, HC 9801FKP13H, HC 9801FKP4H, HC 9801FKP8H, HC 9801FKS13H, HC 9801FKS4H, HC 9801FKS8H, HC 9801FKT13H, HC 9801FKT4H, HC 9801FKT8H, HC 9901FDP13H, HC 9901FDP26H, HC 9901FDP39H, HC 9901FDS13H, HC 9901FDS39H, HC 9901FDT13H, HC 9901FDT26H, HC 9901FDT39H, HC0293SEE, HC0293SEE5, HC2019FKS39H, HC2019FKS39Z, HC2104FKP11H, HC2119FKS39H, HC2119FKS39Z, HC4704FKP16H, HC4754FKS13Z, HC4754FKS16H, HC4754FKS16Z, HC572FKN9H, HC572FUN9H, HC6400FKS26H, 
工作介质：一般液压油、磷酸脂液压油、乳化液、水-乙二醇
工作温度：-30℃～+110℃