How about Zhejiang Lianyin self-priming pump?

All right. Zhejiang Lianyin self-priming pump speaks with strength and excellent quality. Self-priming pump is a kind of self-priming centrifugal pump, which has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life and strong self-priming ability. There is no need to install a bottom valve in the pipeline, just make sure that there is a fixed amount of liquid in the pump before work. Zhejiang Lianyin self-priming pump is easy to use, simple and uncomplicated to operate and convenient to use. The working principle of self-priming pump is to fill the pump shell with water before the pump starts (or the pump shell itself has water). After starting, the impeller rotates at high speed, so that the water in the impeller channel flows to the volute. At this time, a vacuum is formed at the inlet to open the inlet check valve, and the air in the suction pipe enters the pump and reaches the outer edge through the impeller channel.