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Form of Groove on Ball (Floating Ball Valve) 1

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mmbguide

mmbguide

Mechanical
Joined
Apr 8, 2016
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38
Location
DE
hello

why the form of groove on ball for locating end of stem is curve type? why is not a simple pocket?

MPT_balls_-_Copy_oif7up.jpg


thank you?
 
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The stem has a rectangular portion which fits into the slot allowing the ball to be rotated as the stem is turned.
 
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To increase the bearing surface of the slot without affecting the area where the seal rings are.

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Cutting the slot is faster and easier using a round mill cutter. This way it can be cut in one quick step. End milling a slot takes longer to cut and the accuracy of the slot width is not as consistent.
 
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