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Personne àcontacter Ms. Jasmine
Nanshan, Shenzhen, Guangdong
1. background of technology development Centrifugal and mixed flowing pumps starts, making the tremendous current in the electric motor starting current, which makes motor easily burning .In the past , huge electrical resistance and frequency conversion were used to reduce the current devices. Those take big investment, cover large space and cause energy loss. Centrifugal , and mixed flowing pump, and axial pumps stop, the huge pressure from the backwater impacting the water hammer causes entire system fail by destroying the pump, foot valve . So instead of using a step-down starter valve, eliminate water hammer, check valve or foot valve of the new valve is very necessary. Home and abroad valves mainly are (multifunctional pump control valve), hydraulic-driven valve (hydraulic control valve) Disconnecting Pump Control Valve coefficient is big (1.5 ~ 2.2) due to the big resistance. 2.Big diameter valve (especially DN***0mm above) takes huge space , produce and installation are difficult to overcome. Hydraulic valve is driven by electric with the implementation of oil system, its complex structure, difficult maintenance, and pollution problems from oil leakage are insurmountable factors. Therefore, according to needs of the actual conditions , our company takes the advantages of digestion and absorption of micro-Slow Close Check Valve, hydraulic valve, multifunctional pump control valve, half-ball valve, butterfly valve, wedge gate valve and overcomes its shortcomings , thus has produce the hemisphere-liquid control valve (patent number: ZL*******3.X)
