Group Admins
Chinese valve market disorder
Public Group active 3 months agoControl valve manufacturers, and purchase the analyst is not difficult to see in plastic mold and Tianjin, Jiangsu and Zhejiang, and Guangdong and Guangxi regional supply and demand ratio is relatively balanced, the control valve needs of these three regions can be more convenient in the region have been resolved. As production capacity is weak in its own region in Gansu and Shanxi Lu Yu far less Jiangsu and Zhejiang, Beijing and Tianjin and Guangdong and Guangxi areas as lucky. Gansu and Shanxi Lu Yu for the needs of the control valve is not the biggest, but can not be ignored. In the zone of weak demand and have their own production capacity, they need to be producers can have their sales and service feelers longer, farther.
With the continued growth of our government in the titanium welding wire, petrochemical, power, metallurgy, steel, municipal, and other areas of investment, to effectively promote the sustained development has brought unprecedented opportunities, but also for the control valve industry. This is apparent from the increasing trend in the number of control valve producers in China, of course, can also be felt from the control valve supply market of affluent. The supply of control valves in 2006 showing a a prosperity momentum. Is not difficult to see from the bar chart below, showed a rising trend from January to December, the supply of control valves. Although in the third quarter in July and September, slightly weak, but compared with control valves for the first quarter of the supply is still the preferred state. The supply of control valves in the November-December reached a peak.
Clearly, China is not the lack of sources of solar power system control valve, and supply presented prosperity. But we still can not ignore China’s control valve is still vulnerable. In other surveys of control valve, domestic enterprises is generally believed that domestic control valve with foreign enterprises, the technology gap in the 5-10 years; more than 60 percent of companies believe that the domestic control valve in terms of quality defects is the short life appearance quality is not high, one third of the enterprises believe that the leakage and implementing agencies unreliable domestic control valve defects, there are a small part of the business that the domestic control valve defect lies in the material control precision are not allowed, stability and security is not enough. Outstanding foreign control valve enterprises continue to enter the increasingly fierce competition faced by domestic control valves need to work still has a lot!
The throttle adjustment is one of the pressure reducing valve, install the throttle valve to regulate the flow of media in the pipeline or pressure to change the valve opening degree in the pipeline inlet (pump discharge). The substance of the throttle is to change the resistance of the pipeline to change the steepness of the pipeline characteristic curve, variable-speed control valve a function to achieve the purpose of changing the operating point, variable-speed control is in the pipeline characteristic curve of the same case, through the variable speed pump performance curve to change, thus changing the regulation of the pump operating point. Quadratic relationship between load torque and speed into a centrifugal pump, variable speed to adjust the energy efficiency of the most significant. Variable speed adjustment range should not be too big, usually the table cloth speed is not less than 50% of the rated speed, generally 10% to 70%. When the speed is lower than 50% of the rated speed, the pump significantly reduced efficiency. Select the variable-speed control device, to consider the technical and economic factors, a comprehensive analysis, merit, in order to achieve the maximum economic benefit. Taking into account the level of production of the speeder, availability, maintenance capability, and energy conservation requirements, should be adapted to local conditions, select a speed control device should save electricity savings.
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qingrenjie created the group
Chinese valve market disorder 3 months ago
