What are the reasons for insufficient flow of solar pump?

The Solar seawater pump has 8 factors that cause no water or insufficient flow. Because many Solar seawater pumps are made of cast iron or plastic, it is difficult to meet the needs of customers if they only use Solar seawater pumps made of these materials, such as many corrosive The medium cannot be discharged, such as sulfuric acid, hydrochloric acid, nitric acid, etc.; this is one of its characteristics. Another feature is that it is resistant to high temperatures in addition to rust. Therefore, many manufacturers have produced high temperature resistant stainless steel Solar seawater pumps. Although it is stainless steel, there are a lot of auxiliary materials that can't withstand much high temperature. Generally, there is no problem within 120 °. For some chemical plants, it is necessary to use centrifugal pumps for high temperature resistance of more than 200 degrees.1. Solar seawater pumps often have insufficient flow or no water during operation. The main reasons are:(1) The installation height of the pump is too high, so that the impeller immersion depth is not enough, resulting in a decrease in the water output of the pump;( 2) the opposite direction of the pump;( 3) The outlet valve cannot be opened;( 4) The water outlet pipe is not smooth or the impeller is blocked;( 5) The wear ring at the lower end of the pump is seriously worn or blocked by debris;( 6) The liquid density of the pumping liquid is too large or the viscosity is too high;( 7) The impeller is detached or damaged;( 8) When multiple pumps share the output of the pipeline, the one-way valve is not installed or the one-way valve is not tightly seale。