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Re: manometer gauge?

Posted By: SVP Neon Equipment
Date: Wednesday, 25 October 2006, at 10:40 a.m.

In Response To: manometer gauge? (shocking)


> Volunteered to help someone set up a
> manifold and I'm blowing it. Seems
> everything is pumping down but there is too
> much dancing in his manometer
> gauge...stopcock seems tight but
> occasionally gauge rises on the right! He
> has an older gauge that looks repaired in a
> few spots with some excess grease floating
> about. Could this be causing it or do I have
> a leak somewhere? The trodes are getting hot
> too quick but like I said everything pumps
> down okay...until the fill. As soon as I
> close the manometer stopcock the rising
> begins.

You mentioned excess grease. Is this a greased stopcock manifold? If so, did some of the plugs and barrels get mixed up? If they did they may not seal good. Plugs and barrels on greased stopcocks are "matched", meaning they are lapped together so they make a perfect seal when properly greased.

Mark


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