vacuum hangers

I was thinking about this the other night while pumping. As I pull the pump away from my stomach vacuum increases. So I was wondering if anyone has ever put a gauge on a vacuum hanging device to see how high the vacuum goes. My guess would be that it is very high.

Nothing I’ve ever read of here, but I know the MaxxVac comes with a pump attachment. Don’t have one though, so I don’t know if one can measure the vacuum from the weight that way.

I’ve got the Max Vac and currently hanging 9lb sets with it. I use the Mity Vac hand pump that comes with most pumps these days to create the vacuum in the cylinder and draw myself in. Actually, for me, it only requires about 8hg of vacuum to get a solid seal and can easily hang 9lbs for 30 min sets.

Before I got the hanger I figured it would require much more vacuum to hold almost 10lbs and was suprised that only 8hg was needed. So yes, you can put a gauge on ‘this hanger’ to measure vacuum.

So you put it on and pull vacuum to 8”hg before the weights? Or once you add the weight it is 8”hg?

I put it on then draw up 8hg vacuum on the gauge, give a strong tug with my right hand, check for leaks, then apply the weight and the needle holds steady. I read here on Thunders by others that the vac usually increases when the weight is applied but that has never been my case with this hanger. It maybe due to the fact that I use wrapping and a sleeve over that when going into the hanger so a lot of room is already taken up in the cylinder and not as much vacuum is required to hold the weight, hope that makes sense.

I also have a round piece of memory foam toward the end of the cylinder as a soft bumper so that takes up a little more room. If you were to use this hanger as advertised, no wrapping, no foam etc, I’m sure it would require more vacuum than I’m using to hold the same amount of weight, just my theory though.

I have a MaxV with the hand pump. The hand pump came with a gauge. When I was using the MaxV, I would need about 8 to 10 Hg to maintain traction or keep it from slipping off. I could hang up to 10 or 12 lbs. If I went over 10Hg, I would get a water blister.

I now use a vac-hanger and it does not have a nipple to attach the hand pump to check the vacuum. I did get blister using the vac-hanger at 10 lbs. But, I suspect it is a little lower because of the sleeves on the vac-hanger are much thicker then the MaxV and apply a greater traction or gripping characteristics then the MaxV sleeves. But its are to tell. I guess I could get a engine vacuum line nipple from an automotive store and epoxy it to the vac-hanger and check the vacuum. Maybe I will do that for my own curiosity.

The negative pressure is directly proportionate to the weight. If you notice no change regardless of weight with the MaxVac, then it must be that you have sucked out a vacuum that correlates to a greater weight than the weight attached. With the Vac-Hanger (and all homemade versions without pumps), the vacuum increases with the weight.

There are no exceptions to this.