Company News

  • Diaphragm Valve

    Diaphragm Valve

    Diaphragm valve is a shut-off valve that uses a diaphragm as an opening and closing part to close the flow channel, cut off the fluid, and separate the inner cavity of the valve body from the inner cavity of the valve cover. The diaphragm is usually made of rubber, plastic and other elastic, corr...
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  • Installation of common valves

    Installation of common valves

    Installation of gate valves     Gate valve, also known as gate valve, is the use of gate to control the opening and closing of the valve, by changing the cross section to adjust the pipeline flow and opening and closing pipeline.  Gate valves are mainly used for the pipeline of full open or full ...
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  • Butterfly check valve

    Butterfly check valve

    Butterfly check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself, and is used to prevent the medium from flowing back. It is also called check valve, one-way valve, reverse flow valve, and back pressure valve. The check valve is a k...
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  • Important protective measures when installing valves

    Important protective measures when installing valves

    When installing the valve, in order to prevent metal, sand and other foreign matter from entering the valve and damaging the sealing surface, a filter and flushing valve must be installed; in order to keep the compressed air clean, an oil-water separator or an air filter must be installed in fron...
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  • Valves product: Production and inspection process

    Valves product: Production and inspection process

    1. Raw materials of various specifications purchased by the company. 2. Conduct material test on raw materials with spectral analyzer, and print out material test report for backup. 3, With blanking machine for raw material cutting. 4. Inspectors check the cutting diameter and length of raw mater...
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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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  • 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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