CQ magnetic self priming pump can be widely used in chemical, petroleum, food, electroplating, pharmaceutical, smelting and other industries, pumping acid, alkali, oil, rare liquids and volatile liquids. The pump adopts advanced magnetic drive and replaces dynamic seal with precision seal, which makes the pump cavity in a completely sealed state and completely solves the problems of running, bubbling, dripping and leaking which cannot be avoided by mechanical seal pump. As a result, the product is especially ideal for pumping leakage-prone, flammable and explosive liquids.