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What is the trim in a control valve?

The internal parts of the valve body, valve stem, valve seat, packing set, valve plug, gasket, etc. are collectively referred to as valve trim. In other words, all wetted parts that can be disassembled and replaced in the valve body are part of the control valve trim.
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    The internal parts of the valve body, valve stem, valve seat, packing set, valve plug, gasket, etc. are collectively referred to as valve trim. In other words, all wetted parts that can be disassembled and replaced in the valve body are part of the control valve trim.

    But valve body and bonnet that comes in contact with process liquids is not considered as trims.

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    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]cncontrolvalve.com. 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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