Circulating water pump with a new manifold with long jet, increasing the amount of exhaust vacuum is ideal for lab equipment, a host of stainless steel pieces that do not rust corrosion and prolong life, does not pollute the water and so on. A single-table multi-barrel machine operations, with five suction head. Can be used alone or in parallel; corrosion-resistant, non-polluting, stable operation, low noise, long life; multi-purpose water circulating pump. The shell is made of stainless steel, to prevent the paint off the shell using a long, rust, rot bad ills, extending the life of the machine.