CDL(F) Vertical multistage jockey pump is multi-functional product. Standard vertical desktop motor and alloy cartridge machine seal are adopted, which is convenient to replace and stable in quality. The overflow part is made of 304 and 316L stainless steel, which can transport various media from tap water to industrial liquid, and is suitable for different temperature, flow and pressure ranges. CDL is applicable to non corrosive liquids, CDLF is applicable to slightly corrosive liquids.