Working principle

The liquid flows into the filter from the inlet undera certain pressure, impurities are intercepted by the filtering medium inside the filter, and the filtered liquid flows out from the outlet. When the filtration reaches a certain stage, the pressure difference between the inlet and outlet increases,and backwashing is required. At this time, the backwash valve is opened, and hydraulic pressure flows from the backwash inlet to the backwash from bottom to top, restoring the filtering function of the filter.

gr	D Ø	SD2 L	SD3 L	gr	D Ø	SD2 L	SD3 L	gr	D Ø	SD2 L	SD3 L	gr	D Ø	SD2 L	SD3 L
SD5	16	78	83	SD10	19	95	98	SD20	24	111	116	SD50	30	160	168
SD7	16	92	97	SD12	19	103	106	SD25	24	130	135	SD60   30		178	186
SD7.5	16	96	101	SD13	19	108	113	SD30	24	140	145	SD70	30	195	200
SD8	16	101	106	SD15	19	120	125	SD35	24	155	160	SD80	30	210	215
SD10	16	112	117	SD18	19	128	133	SD40	24	170	175
				SD20	19	141	146	SD50	24	200	205
		±2	±2			±2	±2			±2	±2			±2	±2