Self priming pump

Self priming pumps are widely used in various applications such as sprinkler irrigation, firefighting, and lifting of low-level liquids. The self-priming pump produced by Shanghai Meiyanyi Pump Valve has a short self-priming time, with a maximum self-priming height of up to 9 meters. The self-priming performance is very good. We continuously research and improve the calculation formula for the size and position of the reflux hole, as well as the control of the tongue gap, the water storage volume inside the pump, and the volume of the gas-liquid separation chamber. We have solved the influence mechanism of external factors such as the airtightness of the shaft seal, the airtightness of the suction pipeline, the depth of the pipeline submerged in the liquid surface, and the volume of the inlet pipeline on the self-priming performance; Shanghai Meiyanyi Pump Valve is a well-known research and development manufacturer of self-priming pumps in China, which has grasped the trend and direction of further development of self-priming pumps and provided guiding suggestions for the research work of self-priming pumps in China. After using our company's self-priming pump products, you no longer need to install bottom valves and fill water every time you start, making it easy to use. The products have been widely used in various industries in China. The working principle of the self-priming pump of Shanghai Meiyanyi Pump Valve is to fill the pump casing with water (or water stored in the pump casing itself) before the pump is first started. After starting, the high-speed rotation of the impeller causes the water flow in the impeller channel to flow towards the vortex shell. At this time, a vacuum is formed at the inlet, causing the inlet check valve to open, and the air in the suction pipe to enter the pump and reach the outer edge through the impeller channel. Different media can use self-priming pumps made of different materials. The following are pictures of self-priming pump products of various specifications and models for reference only.