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Eccentric Reducer

12/23/2015 7:06 AM

what is the formula to calculate the weight of a eccentric reducer?

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#1

Re: eccentric reducer

12/23/2015 9:12 AM

Not without a drawing and dimension.

Make it then weigh it...?

Del

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#2

Re: eccentric reducer

12/23/2015 9:13 AM

Volume of material times weight of material gives the answer. V x W = A.

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#3
In reply to #2

Re: eccentric reducer

12/23/2015 9:15 AM

Huh?

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#5
In reply to #3

Re: eccentric reducer

12/23/2015 9:26 AM

You know.

Do that thing where you figger out how much material it'll take and then look it up in some chart.


Then just do the conversion, you know.

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#6
In reply to #5

Re: eccentric reducer

12/23/2015 9:48 AM

"figger"???

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#7
In reply to #6

Re: eccentric reducer

12/23/2015 9:57 AM

One who likes figs?

Del

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#8
In reply to #7

Re: eccentric reducer

12/23/2015 10:19 AM

..didn't see figs on that chart!

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#9
In reply to #8

Re: eccentric reducer

12/23/2015 10:26 AM

Jeez!

Here I am tryin' to help the poor fellow with his eccentrics, and all we have is a bunch of clowns.

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#10
In reply to #9

Re: eccentric reducer

12/23/2015 11:19 AM

....clowns and eccentrics!

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#11
In reply to #10

Re: eccentric reducer

12/23/2015 11:30 AM

...and figger!....

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#17
In reply to #11

Re: eccentric reducer

12/23/2015 5:23 PM

Go figger!

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#35
In reply to #11

Re: eccentric reducer

12/31/2015 9:39 AM

That is not Figger - it is Frigger!

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#32
In reply to #9

Re: eccentric reducer

12/29/2015 11:26 AM

Good effort Lyn unfortunately the methodology is somewhat flawed and cannot be used on all applications.

I tried very hard to use your suggested formulae.

Unfortunately my wife will not allow me to measure her outside dimension therefore I cannot effectively or accurately compute the eccentric weight reducer.

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#33
In reply to #7

Re: eccentric reducer

12/30/2015 2:29 PM

No, Del, the "figger" is the fellow who goes out in the mornings into the fig groves and plucks the figs.

Not that I would know anything whatsoever about "plucking figs", or the convolution derived therefrom.

I must say that OP first needs to ask himself how much is a henweigh? Then ask does the egg come after the chicken (which it must if something is to be the mother chicken). Then consider the eccentric shape of the egg, and how it balances when spun. The answer is an unquestionable "about 10 pounds".

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#12
In reply to #5

Re: eccentric reducer

12/23/2015 11:34 AM

Oh, you meant to say density (D or ρ) instead of weight (W) should be multiplied by volume.

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#13
In reply to #12

Re: eccentric reducer

12/23/2015 11:38 AM

Look. You do it your way and I'll do it mine.

I've already worked it out in my head three different ways and you clowns still can't figger it out?

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#14
In reply to #13

Re: eccentric reducer

12/23/2015 12:24 PM

Yeah, we're all riding unicycles and juggling at the same time

Del

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#18
In reply to #14

Re: eccentric reducer

12/23/2015 5:24 PM

I'm still stuck in the trunk of that little car.

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#23
In reply to #18

Re: eccentric reducer

12/24/2015 12:41 AM

A minute ago I thought I was driving...

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#34
In reply to #12

Re: eccentric reducer

12/30/2015 6:32 PM

My wife says you are definitely correct in your statement.

According to her my mental "density" factor is way more relative to solving the "mass of the ass" equation than her "weight" factor being multiplied by volume.

And I am certain she is right because she is always "right" regardless of my limited applicable logic.

I sure hope the heater in my Labrador's doghouse is working.

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#4

Re: eccentric reducer

12/23/2015 9:18 AM

You might try the Internet (Google)

I found a lot of specific information in just a few seconds of typing (Weight of Piping Fittings).

If you had included the sizes of your specific item and the wall schedule I could have given it to you.

Lesson: Do simple research yourself or ask better questions.

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#15

Re: Eccentric Reducer

12/23/2015 1:33 PM

It's the same as a concentric reducer.

See here http://servicemetal.net/pdfs/ConcandEccReducersSTD.pdf

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#16

Re: Eccentric Reducer

12/23/2015 2:40 PM

There isn't necessarily a formula for everything. Some stuff you look up in a table.

In the case of reducers, a complicating factor is how the wall thickness varies from one end to the other. Linear interpolation might be a reasonable guess, but not certain.

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#19

Re: Eccentric Reducer

12/23/2015 5:50 PM

You could measure its displacement volume by submerging it, then multiply by the material's density. Or you could simply weigh it.

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#20

Re: Eccentric Reducer

12/23/2015 7:43 PM
  • TECHNICAL INFORMATION
  • ASME, ANSI, API, BS, DIN, JIS Tee Reducer / Pipe Fittings / dimensions / Table / Size Chart / Standard, Tee Reducer, Suppliers, Exporters, Stockist, Dealers, Manufacturers, Mumbai, India
    Pipe Fittings


  • Reducers

    ASME, ANSI, API, BS, DIN, JIS and other International Standards

    Nom.
    pipe
    size
    Outside
    diameter
    Length Schedule 10 SSchedule 40 S
    H
    Inch
    Wall
    thickness
    Weight
    lbs
    Wall
    thickness
    Weight
    lbs
    O.D.
    inch.
    inchconcentriceccentricinchconcentriceccentric
    33.5003 1/2.1201.531.53.2162.002.00
    44.5004.1202.412.41.2373.503.50
    66.6255 1/2.1345.765.76.2808.508.50
    88.6256.1487.807.80.32213.2013.20
    1010.7507.16514.0014.00.36522.0022.00
    1212.7508.18020.9020.90.37534.0034.00
    1414.00013.18831.2031.20.37560.0060.00
    1616.00014.18835.7035.70.37571.0071.00
    1818.00015.18848.5048.50.37585.0085.00
    2020.00020.21887.6087.60.375125.00125.00

http://www.manansteel.com/tech_reducers.html

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#21
In reply to #20

Re: Eccentric Reducer

12/23/2015 8:04 PM

Enccentric?

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#22
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Re: Eccentric Reducer

12/23/2015 9:02 PM

Mandarin translation?

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#24

Re: Eccentric Reducer

12/24/2015 9:30 AM

With its joints, nuts, bolts and washers, or without? Both flanges or just one? If one, which one?

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#25
In reply to #24

Re: Eccentric Reducer

12/24/2015 11:45 AM

Why worry about the weight, at all? If this eccentric reducer is a pipe fitting then the liquid inside it could easily weigh more than fitting. If this duct work then the mounting hardware can skew any weight prediction calculations.

This thread baffles me.

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#26
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Re: Eccentric Reducer

12/24/2015 2:52 PM

Sometimes this is taken seriously. Leslie "Constantemp" steam water heaters show their center of gravity computed to within a gnat's ass (converts to 0.62 pubic hairs in metric).

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#27
In reply to #26

Re: Eccentric Reducer

12/24/2015 3:42 PM

Those who take it seriously should know a little more in the first place.

Without calculating anything I know this ↑ will weigh more than this ↓.

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#28
In reply to #27

Re: Eccentric Reducer

12/24/2015 4:05 PM

Yes, if the wall thickness is the same, but we don't know that yet.

BTW, I am a former journeyman pipefitter, and have field-fabricated both concentric and eccentric reducers by "orange-peel" techniques.

Some of the posts about piping on here are quite amusing.

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#29
In reply to #28

Re: Eccentric Reducer

12/24/2015 4:27 PM

Wall thickness is more than just a little different. The bottom fitting is made out of PVC. The top fitting is made out of concrete and shows a lift point for the crane.

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#31
In reply to #25

Re: Eccentric Reducer

12/29/2015 1:52 AM

Sometimes the logistics department is to ask questions about weight.

Transport, material usage and so forth. Who knows what this question is about.

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#30

Re: eccentric reducer

12/27/2015 8:56 AM

Her, no Adam's apple.

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#36

Re: Eccentric Reducer

12/31/2015 9:49 AM

So you, the Original Poster asked a question, and then vanished? Was this your homework in some strange, disjointed calculus problem?

IF you are any good at math, you should be able to come up with the integral of contained volume (material). As Lyn stated, multiply A X B to the get the C.

Work it out for both concentric and eccentric reducer (plain sides), and then estimate the metal loss for National Pipe Threads cut into the inner diameter of each and get back with us.

Or just look it up in the tables kindly provided by Solar Eagle, and others. OR if you are seriously thinking about buying a whole lot of these for a city, why not ask the vendors what they weigh (the reducers not the vendors)?

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#37

Re: Eccentric Reducer

01/07/2016 2:49 AM

can someone advise me regarding thickness reducer?

in ASME B16.9, there is only length and OD of small end and large end reducer

what about reducer thickness?

in above post, there is a post regarding reducer thickness, but it only show one thickness for the mentioned schedule

is sch 40 reducer mean one uniform thickness throughout the reducer (as show in the post), or the thickness is a variable value (the thickness is increase gradually from small end to large end because different pipe size with same schedule give different thickness)?

is reducer with uniform thickness and variable thickness, both a standard reducer?

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#38
In reply to #37

Re: Eccentric Reducer

01/07/2016 4:28 AM

Variable thickness is standard, to match the two thicknesses of the pipes to which the reducer is attached.

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#39
In reply to #37

Re: Eccentric Reducer

01/07/2016 9:22 AM

You need to do your own homework, and approach the people who make the eccentric reducers.

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#40
In reply to #37

Re: Eccentric Reducer

01/07/2016 9:52 AM

The thickness for either end can be the same and either end can be thicker. It all depends on the reducer fabrication process and the job the reducer is designed to perform.

As Marcus Tullius Cicero once wrote "Cuiusvis hominis est errare, nullius nisi insipientis in errore perseverare."

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#41
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Re: Eccentric Reducer

01/07/2016 9:59 AM

Anyone can err, but only the fool persists in his fault.

I don't have to quote Cicero, since he only cussed or discussed in Latin.

I was in fear I would have to report swear words, but thankfully I found the above translation. My Latin is virtually non-existent.

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#42
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Re: Eccentric Reducer

01/07/2016 11:54 AM

Just to clarify, my Latin was that was not intended for you, James, but for those who refuse to think or do their homework.

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