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  • The working principle and function of the gate valve

    The working principle and function of the gate valve

    Gate valves are cut-off valves, usually installed on pipes with a diameter greater than 100mm, to cut off or connect the flow of medium in the pipe. Because the disc is a gate type, it is commonly called a gate valve. The gate valve has the advantages of low switching ef...
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  • Check Valve Installation Principle and Precautions

    Check Valve Installation Principle and Precautions

    Check valve is also called one-way valve or check valve, its function is to prevent the medium in the pipeline from flowing back. The valve that opens or closes on its own by the flow and force of the medium to prevent the medium from flowing back is called a check valve...
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  • AQUATECH AMSTERDAM Water Treatment Exhibition

    AQUATECH AMSTERDAM Water Treatment Exhibition

    In 2019, Dongsheng Valve participated in the AQUATECH AMSTERDAM International Water Treatment Exhibition in the Netherlands, the booth number is 12.716A, which lasted for 3 days, from November 5, 2019 to November 8, 2019. As a veteran exhibitor of the exhibition, we are ...
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  • Valve installation taboo

    Valve installation taboo

    The valve is the most common equipment in chemical enterprises. It seems easy to install the valve, but if it is not carried out in accordance with the relevant technology, it will cause safety accidents. Today I would like to share some experience and knowledge about va...
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  • How to tell the Gate Valve and Globe Valve

    How to tell the Gate Valve and Globe Valve

    Globe valves, gate valves, butterfly valves, check valves and ball valves, etc. These valves are now indispensable control components in various piping systems. Each kind of valve is different in appearance, structure and even functional purpose. However, the stop valve ...
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  • Valve material: what is the difference between 304, 316, 316L?

    Valve material: what is the difference between 304, 316, 316L?

    Valve material: what is the difference between 304, 316, 316L?   "Stainless steel" "steel" and "iron", what`s characteristics and the relationships are they? How is 304, 316, 316L come, and what is the difference between each other?   Steel: Material with iron as the pr...
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  • How to choose a check valve?

    How to choose a check valve?

    Check valves should be installed on equipment, devices and pipelines in order to prevent medium countercurrent. The minimum opening pressure of the check valve is 0.002-0.004mpa. Check valves are generally suitable for cleaning media, not for media containing solid parti...
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  • Enterprises Management Upgrade Project

    Enterprises Management Upgrade Project

    In August 2020, Laizhou City launched the enterprises management upgrade project, and selected 20 companies as models. The project takes 36 key contents of the enterprise operation system as the core, and carries out structural governance on the five major sections of th...
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