It is widely used in shipbuilding, oil exploration, truck, etc. In 2008, the ship output reached 15000 tons, and the deadweight tons accounted for 21% of the world market. By 2015, it will become the world's largest shipbuilding country. In order to ensure the normal navigation or mooring of the ship and meet the living needs of the crew and passengers, each ship should be equipped with a certain number of marine pumps that can play a corresponding role. Marine pumps are one of the important auxiliary engines. According to incomplete statistics, among various marine auxiliary machinery and equipment, the total number of marine pumps of various types and purposes accounts for 20% - 30% of the total amount of marine machinery and equipment, and the price of marine pumps also accounts for a large proportion of the cost of marine equipment. In the total cost, marine pumps account for 4% - 8% of the cost of marine equipment. Generally, the purchase of marine pumps for a medium-sized ship can reach more than 10 million yuan. When it comes to the key pump market, it is necessary to mention that China has completed the "West to East Gas Transmission" project, which also requires pump products. At the same time, the state will also build other natural gas transmission pipelines, in which a large number of pump products are required.

Different uses

The water pump has different purposes, different conveying liquid media, different flow rates and different lift ranges. Therefore, its structural forms and materials are also different. To sum up, it can be roughly divided into:

1. Urban water supply 2. Sewage system 3. Civil engineering and building system 4. Agricultural water conservancy system 5. Power station system

6. Chemical system 7, petroleum industry system 8, mine metallurgy system 9, light industry system 10, ship system