该过滤器安装在油泵出油口高压管路上，用以保护控制元件及执行机构。特别是自动控制系统中，高精度的伺服元件及柱塞元件，可有效地防止污染避免故障，延长元件使用寿命。
该过滤器由两只单筒过滤器，换向阀、旁通阀、发讯器等组成能使系统在不停机状况下更换滤芯，适用于连续工作的液压系统。
当其中一只过滤器的滤芯堵塞至压差发讯器压力指示值为0.5MPa时、发讯器发讯、这时必须更换滤芯。只要转动换向阀、另一只备用过滤器即刻工作，这时只需旋开螺塞放完油、再旋下外壳、就可更换已堵塞的滤芯。需更换滤芯侧过滤筒，允许少量内泄漏。
如因故未能及时更换滤芯压差继续升至旁通阀开启压力0.6MPa时，旁通旁自动开启，以避免由于压力继续上升，滤芯破裂造成再污染，但用户必须在发讯器发讯时更换滤芯。
SGF系列双筒高压过滤器（新型）型号：
SGF-H30*3F
SGF.BH-H30*3F
SGF-H60*3F
SGF.BH-H60*3F
SGF-H110*3F
SGF.BH-H110*3F
SGF-H160*3F
SGF.BH-H160*3F
SGF-H240*3F
SGF.BH-H240*3F
SGF-H330*3F
SGF.BH-H330*3F
SGF-H500*3F
SGF.BH-H500*3F
SGF-H660*3F
SGF.BH-H660*3F
SGF-H30×3F
SGF.BH-H30×3F
SGF-H60×3F
SGF.BH-H60×3F
SGF-H110×3F
SGF.BH-H110×3F
SGF-H160×3F
SGF.BH-H160×3F
SGF-H240×3F
SGF.BH-H240×3F
SGF-H330×3F
SGF.BH-H330×3F
SGF-H500×3F
SGF.BH-H500×3F
SGF-H660×3F
SGF.BH-H660×3F
SGF-H30*5F
SGF.BH-H30*5F
SGF-H60*5F
SGF.BH-H60*5F
SGF-H110*5F
SGF.BH-H110*5F
SGF-H160*5F
SGF.BH-H160*5F
SGF-H240*5F
SGF.BH-H240*5F
SGF-H330*5F
SGF.BH-H330*5F
SGF-H500*5F
SGF.BH-H500*5F
SGF-H660*5F
SGF.BH-H660*5F
SGF-H30×5F
SGF.BH-H30×5F
SGF-H60×5F
SGF.BH-H60×5F
SGF-H110×5F
SGF.BH-H110×5F
SGF-H160×5F
SGF.BH-H160×5F
SGF-H240×5F
SGF.BH-H240×5F
SGF-H330×5F
SGF.BH-H330×5F
SGF-H500×5F
SGF.BH-H500×5F
SGF-H660×5F
SGF.BH-H660×5F
SGF-H30*10F
SGF.BH-H30*10F
SGF-H60*10F
SGF.BH-H60*10F
SGF-H110*10F
SGF.BH-H110*10F
SGF-H160*10F
SGF.BH-H160*10F
SGF-H240*10F
SGF.BH-H240*10F
SGF-H330*10F
SGF.BH-H330*10F
SGF-H500*10F
SGF.BH-H500*10F
SGF-H660*10F
SGF.BH-H660*10F
SGF-H30×10F
SGF.BH-H30×10F
SGF-H60×10F
SGF.BH-H60×10F
SGF-H110×10F
SGF.BH-H110×10F
SGF-H160×10F
SGF.BH-H160×10F
SGF-H240×10F
SGF.BH-H240×10F
SGF-H330×10F
SGF.BH-H330×10F
SGF-H500×10F
SGF.BH-H500×10F
SGF-H660×10F
SGF.BH-H660×10F
SGF-H30*20F
SGF.BH-H30*20F
SGF-H60*20F
SGF.BH-H60*20F
SGF-H110*20F
SGF.BH-H110*20F
SGF-H160*20F
SGF.BH-H160*20F
SGF-H240*20F
SGF.BH-H240*20F
SGF-H330*20F
SGF.BH-H330*20F
SGF-H500*20F
SGF.BH-H500*20F
SGF-H660*20F
SGF.BH-H660*20F
SGF-H30×20F
SGF.BH-H30×20F
SGF-H60×20F
SGF.BH-H60×20F
SGF-H110×20F
SGF.BH-H110×20F
SGF-H160×20F
SGF.BH-H160×20F
SGF-H240×20F
SGF.BH-H240×20F
SGF-H330×20F
SGF.BH-H330×20F
SGF-H500×20F
SGF.BH-H500×20F
SGF-H660×20F
SGF.BH-H660×20F
SGF-H30*3F-C
SGF.BH-H30*3F-C
SGF-H60*3F-C
SGF.BH-H60*3F-C
SGF-H110*3F-C
SGF.BH-H110*3F-C
SGF-H160*3F-C
SGF.BH-H160*3F-C
SGF-H240*3F-C
SGF.BH-H240*3F-C
SGF-H330*3F-C
SGF.BH-H330*3F-C
SGF-H500*3F-C
SGF.BH-H500*3F-C
SGF-H660*3F-C
SGF.BH-H660*3F-C
SGF-H30×3F-C
SGF.BH-H30×3F-C
SGF-H60×3F-C
SGF.BH-H60×3F-C
SGF-H110×3F-C
SGF.BH-H110×3F-C
SGF-H160×3F-C
SGF.BH-H160×3F-C
SGF-H240×3F-C
SGF.BH-H240×3F-C
SGF-H330×3F-C
SGF.BH-H330×3F-C
SGF-H500×3F-C
SGF.BH-H500×3F-C
SGF-H660×3F-C
SGF.BH-H660×3F-C
SGF-H30*5F-C
SGF.BH-H30*5F-C
SGF-H60*5F-C
SGF.BH-H60*5F-C
SGF-H110*5F-C
SGF.BH-H110*5F-C
SGF-H160*5F-C
SGF.BH-H160*5F-C
SGF-H240*5F-C
SGF.BH-H240*5F-C
SGF-H330*5F-C
SGF.BH-H330*5F-C
SGF-H500*5F-C
SGF.BH-H500*5F-C
SGF-H660*5F-C
SGF.BH-H660*5F-C
SGF-H30×5F-C
SGF.BH-H30×5F-C
SGF-H60×5F-C
SGF.BH-H60×5F-C
SGF-H110×5F-C
SGF.BH-H110×5F-C
SGF-H160×5F-C
SGF.BH-H160×5F-C
SGF-H240×5F-C
SGF.BH-H240×5F-C
SGF-H330×5F-C
SGF.BH-H330×5F-C
SGF-H500×5F-C
SGF.BH-H500×5F-C
SGF-H660×5F-C
SGF.BH-H660×5F-C
SGF-H30*10F-C
SGF.BH-H30*10F-C
SGF-H60*10F-C
SGF.BH-H60*10F-C
SGF-H110*10F-C
SGF.BH-H110*10F-C
SGF-H160*10F-C
SGF.BH-H160*10F-C
SGF-H240*10F-C
SGF.BH-H240*10F-C
SGF-H330*10F-C
SGF.BH-H330*10F-C
SGF-H500*10F-C
SGF.BH-H500*10F-C
SGF-H660*10F-C
SGF.BH-H660*10F-C
SGF-H30×10F-C
SGF.BH-H30×10F-C
SGF-H60×10F-C
SGF.BH-H60×10F-C
SGF-H110×10F-C
SGF.BH-H110×10F-C
SGF-H160×10F-C
SGF.BH-H160×10F-C
SGF-H240×10F-C
SGF.BH-H240×10F-C
SGF-H330×10F-C
SGF.BH-H330×10F-C
SGF-H500×10F-C
SGF.BH-H500×10F-C
SGF-H660×10F-C
SGF.BH-H660×10F-C
SGF-H30*20F-C
SGF.BH-H30*20F-C
SGF-H60*20F-C
SGF.BH-H60*20F-C
SGF-H110*20F-C
SGF.BH-H110*20F-C
SGF-H160*20F-C
SGF.BH-H160*20F-C
SGF-H240*20F-C
SGF.BH-H240*20F-C
SGF-H330*20F-C
SGF.BH-H330*20F-C
SGF-H500*20F-C
SGF.BH-H500*20F-C
SGF-H660*20F-C
SGF.BH-H660*20F-C
SGF-H30×20F-C
SGF.BH-H30×20F-C
SGF-H60×20F-C
SGF.BH-H60×20F-C
SGF-H110×20F-C
SGF.BH-H110×20F-C
SGF-H160×20F-C
SGF.BH-H160×20F-C
SGF-H240×20F-C
SGF.BH-H240×20F-C
SGF-H330×20F-C
SGF.BH-H330×20F-C
SGF-H500×20F-C
SGF.BH-H500×20F-C
SGF-H660×20F-C
SGF.BH-H660×20F-C
黎明滤芯