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How does a needle valve differ from a ball valve?

- Dec 31, 2018 -

The major difference between a needle valve and a ball valve is that a needle valve allows for the gradual slowing and/or halting of a media, and can be adjusted by hand to match minute proportional movements; typically being used when only a delicate amount of the media is needing to be adjusted. They are generally used as a gauge block valve.

Balls valves are arguably the most commonly used valve in the world, and their name is derived from how they simply function. Quite literally, a ball is placed within the bore of valve between the inlet and outlet which allows the opening and closing of the valve to prevent or limit the passage of a media.

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