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　Valves not intended for use with pumps or valves that function as pumps.

　　The reason pumps and valves are often associated is the occasion of use. That is, where there is a pump there is usually a valve, and where there is a valve there is often a need for a pump. They are both used where liquids are conveyed. Of course, valves are also used for gases. Vacuum pumps are also associated with gases.

　　China's pump and valve market development direction analysis

　　China General Machinery Industry Association Pump Branch in Zibo, Shandong Province, China pump industry business conference. At the meeting, Zhejiang Polytechnic University Industrial Pump Research Institute Director Prof. Zhang Shengchang suggested that the market for the integration of innovative centrifugal pumps, large flow and high efficiency reciprocating oilfield water pumps and other energy efficient, environmentally friendly characteristics of the pump products, China's pump manufacturing enterprises should be actively developed so that both to meet the needs of users, but also for the enterprise to create a new point of growth in profits.

　　Zhang Shengchang believes that the integrated innovative centrifugal pump has a large flow rate, high discharge pressure, wide performance, high efficiency, long life, high reliability and high efficiency high-flow water injection pumping equipment, the product to replace the traditional operating efficiency of the lower centrifugal pump water injection equipment, the oilfield to reduce the cost of oil recovery, has an important practical significance.

　　After the product adopts the innovative stable balance worm case, the radial force balance of centrifugal pump impeller and the shaft bearing force are extremely small, which can effectively improve the mechanical efficiency of centrifugal pump, improve the working efficiency of centrifugal pump, and ultimately achieve the purpose of energy saving; after adopting labyrinth-type mouth ring, the volumetric efficiency of centrifugal pump, the vapor corrosion performance and hydraulic efficiency have been effectively improved, and the efficiency of centrifugal pump can be improved, which can effectively achieve the purpose of energy saving; The innovative balance hole auxiliary mechanism can change the flow direction of the return medium of the balance hole through structural innovation, so that its flow direction is consistent with the flow direction of the medium inside the impeller, which eliminates the influence of the traditional balance hole return medium on the flow state of the medium inside the impeller, thus improving the vapor corrosion performance of the centrifugal pump and hydraulic efficiency.

　　From the market application prospect analysis, centrifugal pump is a large consumption, wide application of general mechanical products, the market demand for this product accounts for about 80% of the total demand for pump products. Therefore, it is significant to carry out energy saving and consumption reduction work for centrifugal pumps with large volume and wide application.

　　High-flow, high-efficiency reciprocating oilfield water pumps market prospects for high-flow, high-efficiency reciprocating oilfield water pumps is a large flow, high discharge pressure, good performance, high efficiency, long life, high reliability and high efficiency of high-flow reciprocating water pumping equipment. This product is of great significance for replacing the centrifugal water injection pumps with low operating efficiency and some low-efficiency, low-flow reciprocating pumps, improving the operating efficiency of the entire water injection pipeline network and the utilization rate of the motor, saving a large amount of electricity and operation and maintenance costs, and realizing the energy saving and improving the utilization rate of energy.