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What role does the check valve play in the pipeline and how does it work？
The check valve is installed in the pipeline system, and its main function is to prevent the medium from flowing back. The check valve is an automatic valve that depends on the pressure of the medium to open and close. Wafer check valve is suitable for various pipelines with nominal pressure PN1.0MPa~42.0MPa, Class150~25000; nominal diameter DN15~1200mm; working temperature -196~540℃ to prevent the medium flows back. When the water valve is closed, there are different pressures at both ends of the check valve. In addition, the inertia when the water flow suddenly stops (is suddenly blocked), so that the check valve flaps quickly swing back and forth, causing the pipeline to produce a kind of rolling stone downhill. Until the pressure on both sides of the check valve is equal. By selecting different materials, it can be applied to a variety of media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing media and uric acid.
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2021.11
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The advantages of remote water meters
Among the many smart water meters, the remote water meter is a relatively new type of smart water meter. Compared with other types of smart water meters, the remote water meter has many advantages. 1. The smart remote water meter uses a straight-through pipe section, which will not cause internal blockage during use. 2. During the installation process, because the smart remote water meter does not have any moving parts, the installation steps are relatively convenient. The main installation forms are horizontal and vertical, so there is no problem of inaccurate measurement caused by wear. 3. The intelligent remote water meter adopts a low-power design, which has a long service life and saves the trouble of replacing the battery. 4. The intelligent remote water meter can accurately measure the accuracy during the entire service cycle, and it will not change due to time. 5. The intelligent remote water meter will not be interfered by impurities, chemical substances and magnetic substances during use.
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2021.11
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The feature of the double eccentric butterfly valve
The double eccentric butterfly valve has a further improved shape on the basis of the single eccentric butterfly valve, and it is currently the most widely used butterfly valve. Its structural feature is that the axis of the valve stem deviates from the center of the butterfly plate and the center of the valve body. The double eccentric effect enables the butterfly valve to be released from the valve seat immediately after opening, which greatly eliminates unnecessary excessive squeezing and scraping of the butterfly plate and valve seat, reduces opening resistance, reduces wear and extends use The position of the life valve seat is improved.
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2021.11
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Electromagnetic flowmeter selection, only need to know these three points of knowledge
When selecting the electromagnetic flowmeter, when the medium, temperature and pressure have been confirmed, from the perspective of installation, the first thing that needs to be supplemented is the installation diameter, and then the power supply and output signal. Theoretically speaking, the selection of electromagnetic flowmeters basically confirms which configuration to use after knowing the three elements of working conditions, but for the convenience of later use, it is still necessary to confirm more detailed parameters.
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2021.11
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The difference between gate valve and globe valve
There are many types of valves on the market. What are the differences between gate valves and globe valves?
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2021.11
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What are the factors to consider when choosing a valve on the main water pipeline
Analysis of whether to install a ball valve or a stop valve on the main water pipeline
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2021.11
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Features of ball valve
The first feature is high wear resistance. The second feature is that the airtight performance is very good. The third feature is that the switch is more convenient. The fourth feature is that it has a long service life. The fifth feature is also the most important feature that I think is the relatively small fluid resistance. It can be said that the ball valve is the valve with the least fluid resistance among all the valves.
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2021.11
