The joint sealing system of flat welding flange is mainly composed of a pair of flanges, a gasket and several bolts and nuts. The sealing process is also a process of deformation and harmony among various components under the working conditions of pre tightening, pressure rise, temperature rise, ...

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What is a control valve? The regulating valve, also known as the control valve, is the terminal executive component in the industrial process control system. In the industrial process continuous production automatic control system, the regulating valve is generally used to control various proc ...

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With global climate change becoming the main threat to human sustainable development, reducing CO2 emissions to mitigate climate change has become a hot topic in the international community. Carbon capture and storage (CCS) technology is of great significance in reducing CO2 emissions, which can ...

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On May 5, 2017, the domestic large passenger aircraft C919 took off at Shanghai Pudong airport. The aircraft is high-tech in terms of aerodynamic shape and fuselage material, so it has also won many orders from airlines in the past two years. However, the pedigree of C919 has always been a contro ...

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What is a steel pipe? Steel pipe is a kind of steel with hollow circular section, whose length is far greater than the diameter or circumference. According to the material, it is divided into carbon steel pipe, alloy steel pipe and stainless steel pipe; according to the purpose, it is divided ...

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What is pipe fitting? Pipe fitting is the general name of components in piping system that connect, control, change direction, divert, seal, support and so on. Steel pipe fittings are all pressure bearing fittings. According to the different type of end connections, it can be divided ...

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What is a ball valve? The ball valve is mainly composed of valve seat, ball, sealing ring, valve rod and other driving devices. The valve can be opened and closed by turning the valve rod 90 degrees. It is used to close, distribute, regulate the flow and change the flow direction of medium ...

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What is a flange? Flange is a part connecting shaft to shaft, which is used for the connection between pipe ends; it is also used for the connection between two equipment, such as reducer flange, on the inlet and outlet of equipment. Flange connection or flange joint refers to the detacha ...

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According to the properties of nuts, there are national standard (GB), German standard (DIN), international standard (ISO), Japanese standard (JIS), American Standard (ASTM / ANSI) and other standards. Among them, national standard, German standard and Japanese standard are represented by M (for ...

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What is a butterfly valve? Butterfly valve, also known as flap valve, is a simple control valve, which can also be used for the on-off control of low-pressure pipeline medium. Butterfly valve refers to a kind of valve whose closing piece (disc or disc) is a disc and revolves around the val ...

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Now more and more importers import stainless steel products from China to your country. In order to save you time, better understand the Chinese stainless steel market, buy high-quality stainless steel products, we wrote this article. In this post, I want to share: Let’s dive in now. ...

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During the test of the nut load test in the laboratory, the inspectors found that a number of nut threads had tripped. Figure 1 shows the appearance of the nut after tripping. Physical and chemical test Analysis and discussion Figure 1 Macro view of the thread of the 45 ...

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