... 500um 4).Flow:50 to 2200m Automatic Self-cleaning filters/strainers for filtering high-volume, high-speed, low ... metallurgy, chemical industry,electric power, oil field injection water, environmental protection, water, etc.Automatic Self-cleaning filters/strainersfeatures:1). ... equipment used 304,316 L stainless steel wedge-shaped filters, high strength, high precision, corrosion resistance, high ...