Hand-Held Self-Priming Chemical Transfer Pump | Compact PP ABS Corrosion-Resistant Small Self-Priming Pump

Working Principle Add liquid into pump casing for the first startup. As the impeller rotates, liquid and suction‑side air mix inside the pump housing. Air‑liquid mixture flows through the separation chamber, air gets discharged while liquid recirculates within the pump. Suction line air is gradually purged to complete self‑priming. Liquid remains inside the pump after shutdown, so repeated priming is not required for restarts. Its self‑priming design reduces overheating and seal damage from dry‑run operation. Application Fields ‑ Chemical Processing: Transfer weak acid and weak alkali corrosive liquids ‑ Food & Potable Water: Food‑grade and clean water media transfer ‑ Light‑Duty Water Treatment: Lab‑scale circulation and small water‑processing tasks ‑ Portable Transfer Jobs: Temporary fluid transfer requiring frequent relocation