Pumps such as plunger pump are widely used in shipbuilding, petroleum exploitation and load-carrying machines. 2008 ship production reached 15000 tons, deadweight tonnage accounted for 21% of the world market, to 2015 will become the largest shipbuilding country. In order to ensure the ship's normal sailing or mooring, to meet the needs of the crew and passengers, each ship must be equipped with a certain number, can play a corresponding role in the use of marine, marine pump is one of the important auxiliary machines. According to incomplete statistics, in a variety of marine auxiliary machinery equipment, various types and different uses of the total number of marine pumps, about 20% of the total amount of ship machinery and equipment 30%, the price of marine pumps in the ship equipment costs accounted for a larger proportion.
In the total cost, the marine pump accounted for the whole ship equipment costs of 4%-8%, under normal circumstances. The purchase of a ship with medium or above ship can reach more than 10 million yuan.
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