Product News

  • 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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  • 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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  • 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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  • Selection principles and applicable occasions of butterfly valves

    Selection principles and applicable occasions of butterfly valves

    1.Where the butterfly valve is applicable Butterfly valves are suitable for flow regulation. Since the pressure loss of the butterfly valve in the pipeline is relatively large, it is about three times that of the gate valve. Therefore, when selecting the butterfly valve, the influence of the pres...
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  • The difference between rising stem gate valve and non-rising stem gate valve

    The difference between rising stem gate valve and non-rising stem gate valve

    The difference on the stem The rising stem gate valve is a lift type, while the non-rising stem gate valve is not a lift type. The difference in transmission mode Rising stem gate valve is a handwheel that drives the nut to rotate in place, and the valve stem is linearly raised and lowered to com...
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  • What does the valve arrow on the body mean?

    What does the valve arrow on the body mean?

    The arrow marked on the valve body indicates the recommended bearing direction of the valve, not the flow direction of the medium in the pipeline. The valve with bi-directional sealing function can not be marked with the indicating arrow, but also marked with the arrow, because the valve arrow re...
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  • Selection of butterfly valve for water supply pipeline

    Selection of butterfly valve for water supply pipeline

    1.Centerline butterfly valve and eccentric butterfly valve Centerline butterfly valve and eccentric butterfly valve have their own advantages and disadvantages,When selecting a model, it must be considered comprehensively in combination with its cost performance. Generally speaking, the center ...
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  • What is the difference between a wafer butterfly valve and a flange butterfly valve?

    What is the difference between a wafer butterfly valve and a flange butterfly valve?

    Wafer butterfly valves and flange butterfly valves are two common types of butterfly valves. Both types of butterfly valves have a very wide range of applications, but many friends can’t distinguish between wafer butterfly valves and flanged butterfly valves, and they do...
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  • Advantages of manual diaphragm valve structure

    Advantages of manual diaphragm valve structure

    The advantages of diaphragm valves are similar to those of pinch valves. The closing element is not wetted by the process medium, so it can be made of cheaper materials in the corrosive process medium. The flow of the medium is straight or nearly straight, and produces a...
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