Flange static basic calculus questions

[jangolobow]

We have product made of two parts connected with flange. My task as junior engineer ist to predict if it would be possible to lift or product if 4 holes –made in flange can survive this lifting. Data are as follows-total weigt 1000kg, flange made of AISI 304 stainlessteel. Used for O ring screws. Can you give me some hint how to check static calculus? Does there exist some manual or book? Which O ring screw should be suitable? Thank is advance!

 

[Ron]

What you show in the photo is not an O-ring screw, it is an eye bolt in the wrong orientation for lifting as you show it. Further, the load is a lot more than you can handle with a reasonably sized rope! This would fail.

The blanking flange should be replaced with a lifting flange. Then the problem reduces to only direct tension in the 4 bolts.


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[rb1957]

please correct your post 1000g is not 1000kg (as in attmt).

as above terminology gets in the way of understanding what you're doing, ESL doesn't help.

are the pieces represented by the red lines to be added under the flange ? under the bolts ??

are you lift the whole valve ?

do you want to separate the top plate from the valve body (to place the lifting pieces under it) ?

would it be better to keep the plate attached ?

could you replace the four existing bolts with eye-bolts ?

if keeping the plate attached helps, why not have something (wire cable ?) to loop under the valve and lift it in a very natural way ?



another day in paradise, or is paradise one day closer ?

 

[jangolobow]

Hay I have cdorrected units it is 1000kg weight.

The pieces are screwed into a flange I add the picture once again

we wont to lift the valve entire.

point is that this "works" we tried however now we need to prove it. does sbdy have some idea - simple calculus maybe?

 

[desertfox]

Hi

You would be better off putting slings through the holes of two flanges on the inlet and outlet or wrapping slings around the valve body behind the inlet and outlet flanges.

“Do not worry about your problems with mathematics, I assure you mine are far greater.” Albert Einstein

 

[rb1957]

"screwed into the flange" doesn't sound like a good idea.

you want to take the valve apart ?

how about lifting from the handle (out of sight, above your last pic, but obviously there).
maybe open the valve fully (so there's another loadpath into the body of the valve) ?

another day in paradise, or is paradise one day closer ?

 

[Jboggs]

If you remove bolts that the manufacturer installed, you can affect the performance of the valve. You should contact the manufacturer and ask them for the best way to lift the valve. They would know better than anybody.