On December 2, 2010, the Department of Tire and Rubber Industry of the Ministry of Industry of Myanmar issued the final acceptance certificate for the Tire Factory Project to Zhonggong International . The project is to build a 300,000 radial tire factory, including design, mechanical equipment supply, installation guidance, commissioning and training. The Chinese government provided preferential export buyer credit and signed a commercial contract on September 25, 2007. The project went into effect on November 21, 2008. After many efforts, the project was completed and put into operation within the contract period, and the completion ceremony was held on February 10, 2010. After nearly 10 months of inspection by the owner, the plant's production capacity and various economic and technical indicators have met the requirements of the contract and reached the relevant industry standards, and Myanmar has fully affirmed the project. The owners expressed their gratitude to the Chinese companies for their contribution to Myanmar's tire production industry. 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.pumpqt.com