Globe valve, also known as cut-off valve, is a mandatory sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the failure of the top of the valve stem will occur. According to the connection method, it is divided into three types: flange connection, thread connection and welding connection. After the appearance of the self-sealing valve, the medium flow direction of the globe valve is changed from the top of the valve disc into the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, but the force to open the valve is large, and the diameter of the valve stem can be adjusted accordingly. decrease. At the same time, under the action of the medium, this form of valve is also tighter. my country's valve "Three Chemicals" once stipulated that the flow direction of the globe valve should be from top to bottom. When the globe valve is opened, the opening height of the valve disc is 25% to 30% of the nominal diameter. The flow rate has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the globe valve should be determined by the stroke of the valve disc. Shut-Off Valve,Shutoff Valve,Automatic Shut Off Valve,Auto Shut Off Valve Jiangsu Qiantu Trading Co., Ltd. , https://www.jsqiantupump.com
The “Top Ten News of Chinese Enterprises†and “Most Influential Enterpriseâ€, “The Most Enthusiastic Entrepreneur†and “Most Growing Enterprise†sponsored by the top ten news selection committees of Chinese companies were announced in Beijing. FAW was elected as the "2007 Most Influential Enterprise".
A total of 20 “most influential companies†of 2007 were selected by the jury, and FAW ranked second with China Telecom. The reason given by the jury for FAW selection is: through the series of reforms in the corporate capital structure, corporate structure, organizational structure, and management structure, the old state-owned enterprises will be completely restructured so that the old appearance of the enterprise will be changed and the manufacturing technology will reach the world's advanced level. .
For more than 50 years, FAW has been responsible for the development of China's automobile industry. It has experienced three major stages of development: lighter car, sedan, and micro-vehicle. The passenger and passenger series models have formed a variety of products with a wide variety of products and have become the leading enterprises in the automotive industry in China. In accordance with the requirements of establishing a modern enterprise system, the company has accelerated the pace of corporate restructuring, followed the principles of “reduction, unification, and efficiencyâ€, and through “separation, separation, diversion, and separationâ€, the compression of institutional establishment, optimization of personnel structure, and division of business operations into R&D. The six major sections of the economy, passenger vehicles, commercial vehicles, spare parts, auxiliary and derivative economies highlight the core business. In accordance with improving the investment structure, accelerating the diversification of equity requirements, actively promoting the diversification process of the subsidiary's property rights, rationalizing the parent-subsidiary company’s asset relations, product relations, and management relationships, and completing the fundamental transformation from the factory system to the company’s system, basically forming a The modern enterprise system requires and adapts to the market competition needs of the enterprise management system.
FAW's production and sales volume has been at the forefront of the industry for many years. In 2004, its sales volume exceeded 1 million units, setting a new milestone in the development history of China's auto industry. In 2004, 2005, and 2006, it entered the world's top 500 for three consecutive years. In 2005, 2006, and 2007, it ranked first among China's top 500 machinery enterprises. In 2007, it achieved sales of 1.4 million units and sales revenue of 188 billion yuan, ranking 385th in the "World's Largest 500 Companies" and 71st in the "World Machinery 500". The brand value of the company reached 42.421 billion yuan.