A detailed description of NZL-type manual water filters: Introduction NZL type manual water filter is to remove suspended solids in water equipment for hydropower technical water supply system for water quality treatment. The manual water filter with reliable performance, easy operation, small size, long life and other characteristics. Technical parameters 1, working pressure: 0.5-1.6MPa; 2, medium: water; 3, nominal diameter: 50,80,100,150,200; 4, filtration accuracy: 0.5 ~ 6mm (optional); 5, Conditions: medium temperature <50 ℃, relative humidity <95%; 6, sand filter size: ≥5mm;