CE list water pump submersible solar pump dirty water pump Characteristics&use range: plasticl structures rust free and anti corrosion Feature: SS pump casiSS shaft Mechanical seal: graphite to ceramic and silicon carbide to silicon carbide Thermal overload protector in single phase motor Using single(three) phase power source complete stainless steel structure rust free and anti corrosion. the vortex type or double-vane impeller features .the maximum solid diameter of passage up to 40mm standard AISI SS 304 for common acid or alcali (PH value 4-10) 316L for sea water or chemical industry (PH value 0-12)