泵 is a Chinese hanzi, listed here under the keyword “pump (english loan word)”. It is built from 石 (stone) and 水 (water). It appears as a component in 1 other character in this index.
On KumiJi Glyph Explorer, open the parts search and type “stone” + “water”. 泵 is among the results, together with every other character containing the same shapes.
Open 泵 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.