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  • 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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  • Valve selection instructions

    Valve selection instructions

    1. Selection of gate valve   In general, gate valves should be preferred.  Gate valves are not only suitable for steam, oil and other media, but also for medium containing granular solids and large viscosity, and suitable for vent and low vacuum system valves.  For media...
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  • Wide range of uses of butterfly valves

    Wide range of uses of butterfly valves

    Butterfly valve is a kind of valve, which is installed on the pipeline to control the flow of medium in the pipeline. The butterfly valve is characterized by simple structure and light weight. Its components include transmission device, valve body, valve plate, valve ste...
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  • The characteristics and working principle of butterfly check valve

    The characteristics and working principle of butterfly check valve

    Butterfly check valve is also called butterfly check valve. HH77X butterfly check valve is an automatic valve that works according to the flow state of the medium in the pipeline. It can effectively prevent the pipeline medium from flowing back and prevent the pumps and ...
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  • What is the difference between butterfly valve handle drive and worm gear drive? How should I choose?

    What is the difference between butterfly valve handle drive and worm gear drive? How should I choose?

    Both the handle butterfly valve and the worm gear butterfly valve are valves that require manual operation. They are commonly referred to as manual butterfly valves, but there are still differences in the use of the two.     1. Handle butterfly valve The handle rod directly drives the valve plate...
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  • About the use of check valves

    About the use of check valves

    Usage of check valve  1. Swing check valve: The disc of the swing check valve is disc-shaped, and it rotates around the shaft of the valve seat passage. Because the inner passage of the valve is streamlined, the flow resistance ratio increases.  The drop check valve is small, suitable for low flo...
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  • Classification of valves

    Classification of valves

    In fluid piping system, valve is the control element, its main function is to isolate equipment and piping system, regulate flow, prevent backflow, regulate and discharge pressure. Valves can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and rad...
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  • What is the CV value of the foot valve?

    What is the CV value of the foot valve?

    CV value is Circulation Volume Flow volume shorthand, flow coefficient abbreviation, originated in the western fluid engineering control field for the valve flow coefficient definition. The flow coefficient represents the ability of the element to flow medium, specifically in the case of a foot v...
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  • What conditions need to be met when stainless steel valves are sealed

    What conditions need to be met when stainless steel valves are sealed

    Valves are used as a complete set of air separation equipment in chemical systems, and most of their sealing surfaces are made of stainless steel. In the grinding process, due to improper selection of grinding materials and incorrect grinding methods, not only the production efficiency of the val...
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  • Precautions for installation and use of butterfly valves

    Precautions for installation and use of butterfly valves

    Butterfly valves are mainly used for the adjustment and switch control of various types of pipelines. They can cut off and throttle in the pipeline. In addition, butterfly valves have the advantages of no mechanical wear and zero leakage. But butterfly valves need to understand some precautions f...
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  • Check Valve procurement must know the technical requirements!

    Check Valve procurement must know the technical requirements!

    Valve specifications and categories shall conform to the requirements of pipeline design documents 1, the check valve model should be indicated according to the NATIONAL standard number requirements. If the enterprise standard, should indicate the relevant description of the model. 2, the check...
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