The 3-inch gasoline pump is an efficient and lightweight water pumping equipment, widely used in various fields. Its main feature is the use of a gasoline engine as the power source, which is lighter, less costly to manufacture, quieter, and has better cold-start performance compared to diesel engines. However, gasoline engines have lower thermal efficiency and higher fuel consumption rates. Another important characteristic of the 3-inch gasoline pump is its high lift and flow rate, capable of meeting various applications such as agricultural irrigation and drainage, and industrial drainage.