Counterbalance (Overcenter) Valve

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  • March 2, 2000 at 12:00 am #19579
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    Is there such a thing as a PNEUMATIC Counterbalance (-or- 'Overcenter') Valve?I need to pneumatically rotate ~1000# mass, 180 degrees in 2 to 3 seconds. The rotational axis is parallel to the ground and NOT about the machines Center of Gravity.

    December 10, 2020 at 8:51 pm #22006
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    Larry;There is no Over Center valve for air circuits that I know of. Have you considered an Air-Oil circuit? Go to http://www.pneumatic-source.com to see a chapter out of a Fluid Power Training book I have put together to see if one of the methods there

    December 10, 2020 at 8:52 pm #22007
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    Hi Larry,You have an interesting application, and before I comment on it, I would like to know more about how you intend to rotate the mass, and what your plans are for dealing with it etc. when you reach the end of your rotation.What you do with

    December 10, 2020 at 8:52 pm #22008
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    This is just an idea:Just before you get to the over centre point, have the pressure sensed in the side that is in the lifting side.At or maybe just before, the overcentre point, put the same pressure into the other side.It might be simpler put s

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