PS series self-priming pump is a self-priming clean water pump, which is composed of a clean water electric pump, a one-way valve and a steam water separation chamber above the pump body. It is assembled with high-quality mechanical seal, easy to install, light in weight, small in land occupation, low in power consumption and strong in self-priming capacity. When in use, it can be used without bottom valve. Only part of the water in the pump body needs to be reserved. After a short time of operation, it can be operated by the pump itself Water is drawn up. It is suitable for household life, irrigation of farmland, orchard, garden, water temperature air conditioning water supply pump, as well as for automobile, road washing and other sanitary purposes.