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Pumps are used very frequently in our daily lives and work. Pumps are needed for supplying water in high-rise buildings, for agricultural irrigation, for industrial wastewater drainage, and for fire safety. In short, pumps are present everywhere around us, playing an invisible role in our daily lives. Pumps have a long history dating back to around 200 BC. The Egyptians used two pistons placed inside copper tanks; by moving them up and down manually, they could draw water in and then discharge it through the bottom of the tank. These were the earliest forms of pumps. In 1725, British scientists invented a simple manual pump. By 1825, Swedish scientists used steam engines to power fire pumps, giving rise to the first true fire pumps. The 19th century was the peak period for the development of piston pumps. By the 1920s, due to the significant limitations of piston pumps, they were gradually replaced by centrifugal pumps and rotary pumps. Fire pumps have higher technical requirements than ordinary water pumps; their production process is more complex, and the requirements for raw materials are also stricter. Our country began to design and produce two-stage centrifugal fire pumps on its own in 1965; although the start was late, these pumps have seen rapid development in recent years. As a seasoned manufacturer of fire pumps, Shanghai Liangong Pump Industry produces fire pumps that have passed both CCC and CCCF certifications. These pumps are of excellent quality and enjoy a good reputation in the industry. Article source: www.liangongpv.com