Made of aluminum alloy casting, anodized anti-corrosion treatment, the use of high pressure water as the driving source, compact size, light weight, nice, easy to use. Mainly used in construction basement, cabin, warehouse and other explosive, flammable and explosive liquids inserted suck. Working principle is to use high-pressure fire water cycle as the pump drive power source, the pump does not produce Mars in the working state, will not cause flammable and explosive liquids, safe and reliable.