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What is Difference Between V-port Ball Valves and Globe Control Valves?

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    In the automation, it will use a v-port ball valve or globe type control valve to regulate the process pressure, temperature, or flow rate, but how to know where should be used v-port ball valve, or globe control valve is important for engineer’s selection.
    So understanding the differences between v-port ball valves and globe control valves is our major topic.

    Figure 1: V-Port Ball Valve (rotary) vs. Globe Contro Valve (linear).
    Figure 1: V-Port Ball Valve (rotary) vs. Globe Contro Valve (linear).

    Both v-port ball valve and globe control valve are consist of three main parts: valve body, actuator, and positioner. You can refer to figure 1 to see each part.
    When we selecting a particular condition of control valves, commonly we will consider V-port ball valves and globe-type control valves. The following are the points to differentiate them.

    1. Action type

    V-port ball valves use rotary motion so the installation space is more compact than globe-type control valves, which use linear motion.

    2. Flow coefficient Cv

    Compared to the globe control valve of the same size, the v-port ball valve has higher flow coefficients Cv.
    It means that a smaller V-ball control valve can be used to achieve the same flow capacity as a comparable globe control valve. But due to the flow curve of the v-port ball valve is not ideal, it’s not an uneven increase of flow when compared to the degree of rotary. So for high precise flow control, we still prefer to use globe-type control valves.

    flow coefficient cv control valves
    flow coefficient cv control valves
    flow coefficient cv1
    flow coefficient cv1

    3. Budget

    According to point 1. 2, we know that v-port ball valves are lower budget than globe control valves, with small size and compact installation space. Typically, a V-Port Ball Valve will be 35% to 50% less than a Globe Valve.

    4. Shutoff Tightness

    The v-port ball valve uses a floating ball to close the valve with a rotary motion, which provides a tight shut-off with zero leakage and regulates flow function. When the valve is closed, upstream pressure pushes the ball against the downstream seat, thus enhancing the seal. But for globe-type control valves, it’s hard to achieve zero leakage, which usually complies with ANSI FCI 70-2 Class II, III, IV, V, VI.

    5.  Closure Component Design

    60 degree ball valve
    60-degree ball valve

    V-port ball valves are specialized ball valves with different V segment options in the ball part, 30°, 60°, and 90°. The 30° segment makes a better-tapered control throughout the valve rotary, and 60° and 90° offers a larger Cv than 30°.

    Globe Valves vs. V-Port Ball Valves

    ItemGlobe Type Control ValveV-Port Ball Valve
    Function2-Way Flow Control Valve
    3-Way Mixing Type Control Valve
    3-Way Diverting Type Control Valve
    2-Way Flow Control Valve
    Shutoff TightnessNot Zero LeakagePositive Shutoff, Zero Leakage
    Control AccuracyExcellenceCoarse
    High Response CycleYes, Constant ControlNo
    Flow CapacityLowerHigher
    Cavitation PreventionPriority Selection
    High TemperaturePriority Selection
    Easy MaintenancePriority Selection
    Cost More Economical Solution


    THINKTANK is a well-known brand which focuses on control valves for over 10 years, we provide OEM service for 42 international valve and instrument brands.

    Picture of Will Don

    Will Don

    After earning my bachelor's degree in mechanical engineering from Zhejiang Normal University in 2008, l was fortunate enough to begin my career with Siemens, Fisher, and YTC, focusing on control valve accessories. Over the past dozen years, l've poured my heart and energy into understanding technology and fluid solutions for control valves.
    Now, as the marketing director for THINKTANK, a trusted branch of the Taiwan STONE valve group, I can't help butf eel proud of how far we've come. Our knowledge isn't just reaching professionals like engineer and valve distributors; it's also inspiring the next generation of automation college students.
    l genuinely hope you're enjoying our articles and finding them helpful.Your thoughts, questions, and feedback mean the world to me, so please don't hesitate to reach out to marketing[at] Whether you're a seasoned expert or just curious about the field, I'm here to connect, share, and learn together.

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    I am the author of this article, and also the CEO and marketing director of THINKTANK, with 15 years of experience in the industrial valve industry. If you have any questions, you can contact me at any time.

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    With expertise in valves and rich experience in the oil&gas, chemical industry, textile mills, power plants, and sugar mills. THINKTANK has become the premier manufacturer of next-generation precision control valves.

    With a customer base that includes over 42 of the world’s leading engineering&contractors and international valve brands, THINKTANK Valves offers cost-effective valves that help our customers achieve automated process control without paying high prices.

    Why are more and more international valve brands choosing THINKTANK for OEM service?

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