You older eggers might remember my constant recommendation of "double nutting"...

JohnInCarolina · October 3

ColbyLang said:

JohnInCarolina said:

Canugghead said:

bettysnephew said:

I worked maintenance in a commercial food plant for 40 years. Any fasteners over a potential contamination area had to be torqued and a nylok secondary nut was torqued on top of the first. We also used the same procedure in high vibration applications. So no, it is not overkill.

Thanks, good to know. I guess that counts as triple nutting? Right in the same league as three cheeses and triple indirect

I wonder if there are videos online showing you how to triple nut.

Be sure to use a Duke University computer when you google that

Haha. I’m thankful to work at an institution that won’t ever police the computer in my office. It’s not like I work at Texas A&M or Texas Tech.

GrateEggspectations · October 3

*Duke IT department actively investigating John for being on eggheadforum incessantly*

Ike · October 4

JohnInCarolina said:

ColbyLang said:

JohnInCarolina said:

Canugghead said:

bettysnephew said:

I worked maintenance in a commercial food plant for 40 years. Any fasteners over a potential contamination area had to be torqued and a nylok secondary nut was torqued on top of the first. We also used the same procedure in high vibration applications. So no, it is not overkill.

Thanks, good to know. I guess that counts as triple nutting? Right in the same league as three cheeses and triple indirect

I wonder if there are videos online showing you how to triple nut.

Be sure to use a Duke University computer when you google that

Haha. I’m thankful to work at an institution that won’t ever police the computer in my office. It’s not like I work at Texas A&M or Texas Tech.

One question I have to ask you @JohnInCarolina, did you become a Trumper or did duke tell you were spending too much time on the OT thread?

JohnInCarolina · October 5

Ike said:

JohnInCarolina said:

ColbyLang said:

JohnInCarolina said:

Canugghead said:

bettysnephew said:

I worked maintenance in a commercial food plant for 40 years. Any fasteners over a potential contamination area had to be torqued and a nylok secondary nut was torqued on top of the first. We also used the same procedure in high vibration applications. So no, it is not overkill.

Thanks, good to know. I guess that counts as triple nutting? Right in the same league as three cheeses and triple indirect

I wonder if there are videos online showing you how to triple nut.

Be sure to use a Duke University computer when you google that

Haha. I’m thankful to work at an institution that won’t ever police the computer in my office. It’s not like I work at Texas A&M or Texas Tech.

One question I have to ask you @JohnInCarolina, did you become a Trumper or did duke tell you were spending too much time on the OT thread?

Not much use in pointing out the obvious these days. Any thinking person can see we made a terrible mistake.

Ike · October 6

JohnInCarolina said:

Ike said:

JohnInCarolina said:

ColbyLang said:

JohnInCarolina said:

Canugghead said:

bettysnephew said:

I worked maintenance in a commercial food plant for 40 years. Any fasteners over a potential contamination area had to be torqued and a nylok secondary nut was torqued on top of the first. We also used the same procedure in high vibration applications. So no, it is not overkill.

Thanks, good to know. I guess that counts as triple nutting? Right in the same league as three cheeses and triple indirect

I wonder if there are videos online showing you how to triple nut.

Be sure to use a Duke University computer when you google that

Haha. I’m thankful to work at an institution that won’t ever police the computer in my office. It’s not like I work at Texas A&M or Texas Tech.

One question I have to ask you @JohnInCarolina, did you become a Trumper or did duke tell you were spending too much time on the OT thread?

Not much use in pointing out the obvious these days. Any thinking person can see we made a terrible mistake.

I concur

Corv · October 6

So, how can we recover?

DoubleEgger · October 6

Corv said:

So, how can we recover?

Vote

Canugghead · October 14

bump

Ozzie_Isaac · October 14

ColbyLang said:

DoubleEgger said:

Triple nutting? Now you’re just showing off…

Almost film worthy

For an amateur maybe.

Image: https://us.v-cdn.net/5017260/uploads/editor/8i/2n7ukqwymu4x.png

Corv · October 15

Seems just a trifle like overkill. Barely.

Canugghead · October 15

Ozzie_Isaac said:

ColbyLang said:

DoubleEgger said:

Triple nutting? Now you’re just showing off…

Almost film worthy

For an amateur maybe.

go nuts or go home!

YukonRon · October 15

Just an observation from one that has been absent from the forum, it just does not seem the level of maturity has gained much in my absence. Carry on.

ColbyLang · October 15

Ozzie_Isaac said:

ColbyLang said:

DoubleEgger said:

Triple nutting? Now you’re just showing off…

Almost film worthy

For an amateur maybe.

There’s no way you can double nut that many times without getting dehydrated

CTMike · October 17

DoubleEgger said:

I remember @CTMike talking about torquing bolts/nuts on a reactor to a million pounds. It was impressive.

Yup. The plant I worked at - the reactor vessel closure head weighed 165 tons, give or take (the polar crane that lifted it used a strain gauge to measure the load - the longer it hung in the air the "heavier" it would get).

Anyhow, the flange that mated up with the flange on the vessel it self was about 3' thick, and had 54 holes for the studs to pass through. Each stud was about 5' long and about 6" in diameter or so, and together with the nut and washer weighed around 750 lbs.

Anyhow, when it was time to put the head back on, we had three hydraulically operated machines controlled by a computer. You'd lower the three machines on to a specific set of studs, and a set of jaws would grab the stud and stretch it about 50 thou using 30kpsi hydro pressure. The nut would get snugged up and then torqued to 100 ft-lbs. You would then move to the next set of three studs and rinse/repeat until all 54 were torqued. Then two more passes.

Resulting torque was right around 1M ft-lbs - I always found it amazing and enjoyed being a refuel team lead during outages.

RRP · October 21

Bear with me with an example of...Double Nuts on Steroids - this time it is a massive corner pole

Image: https://us.v-cdn.net/5017260/uploads/editor/ja/cebd2ovd0x1n.jpeg

And it is anchored with 96 BIG double nuts around its 8 sides.

Image: https://us.v-cdn.net/5017260/uploads/editor/xq/nugcnds7zrhh.jpeg

Canugghead · October 22

Plus visual alarm if any top nut gets tired of riding the bottom nut 😂

Image: https://us.v-cdn.net/5017260/uploads/editor/43/jntjiemt6vbe.png

RRP · October 22

Canugghead said:

Plus visual alarm if any top nut gets tired of riding the bottom nut 😂

Actually I wondered the same, but all of the nuts have perfectly cut kerfs which have to be intentional during their production. I am assuming they are to eliminate stress and assure a tighter grip on the threads below which I bet are produced from a higher grade of steel.

PS - I am not suggesting eggers go split their nuts for sake of having a tighter band...

JohnInCarolina · October 22

Ron, this might blow your mind: triple nut

RRP · October 22

but John, I never expect to own a BGE large enough to require 96 double nuts much less 144 nuts!!!

alaskanassasin · October 22

Interesting @Canugghead it almost looks like it was applied with a sharpie, possibly a way to keep track of which nuts the installer has already torqued. Especially if there is a sequence like when you tighten car rims.

GrateEggspectations · October 22

@canugghead sees all.

ColbyLang · October 22

alaskanassasin said:

Interesting @Canugghead it almost looks like it was applied with a sharpie, possibly a way to keep track of which nuts the installer has already torqued. Especially if there is a sequence like when you tighten car rims.

Familiar marks

Canugghead · October 22

alaskanassasin said:

Interesting @Canugghead it almost looks like it was applied with a sharpie, possibly a way to keep track of which nuts the installer has already torqued. Especially if there is a sequence like when you tighten car rims.

Exactly what I thought too, but it has to be some sort of engraving/scoring that's more permanent than sharpie? I'm guessing it serves the same purpose as these...

Image: https://us.v-cdn.net/5017260/uploads/editor/dx/fjefno634jlk.png

Canugghead · October 22

GrateEggspectations said:

@canugghead sees all.

You better watch out

alaskanassasin · October 22

I mark the lug nuts on my semi tires as I torque them because it’s laborious work and it takes any second guessing out of the job. Imagine your job is to torque the 50+ double nuts on each post.

RRP · October 22

No guys...those are no magic marker lines - they are definitely cuts in the nuts! Want me to go back and give you super close ups to those massive nuts to prove it i will!

GrateEggspectations · October 22

RRP said:

No guys...those are no magic marker lines - they are definitely cuts in the nuts! Want me to go back and give you super close ups to those massive nuts to prove it i will!

The gentlemanly thing to do would be to at least take me out to dinner first.

alaskanassasin · October 22

Yap going to need a better photo @RRP

fishlessman · October 22

RRP said:

Canugghead said:

Plus visual alarm if any top nut gets tired of riding the bottom nut 😂

Actually I wondered the same, but all of the nuts have perfectly cut kerfs which have to be intentional during their production. I am assuming they are to eliminate stress and assure a tighter grip on the threads below which I bet are produced from a higher grade of steel.

PS - I am not suggesting eggers go split their nuts for sake of having a tighter band...

i would think the leveling nuts below the plate would need double nutting too or maybe the inspector gets a cash bribe and looks the other way.....nah, that never happens

RRP · October 22

to one and all I can’t take the pictures today but will tomorrow,

You older eggers might remember my constant recommendation of "double nutting"...

Comments

Categories