Piping Double Rolling calculation | Updated 

Best tutor about rolling pipe ,thank u very much sir

Now your calculation is everything okk. Excellent 👍👍👍👍.

Sir, thank you for understanding the difficulty of the new learner and simplified the complex concept very easily. Thank you so much . I am waiting for another new video

I like this video. I watched it more than a half a dozen times. IT CONTAINS MANY GOOD POINTS!!! You accurately demonstrate 3 of the 6 trigonometric functions. All of your math is correct for any 2 dimensional triangle. The problem which I see in this video is that 2 dimensional trigonometry does not accurately explain trigonometry in 3 dimensions. Compound rolling angles must be computed anytime that you are working in 3 dimensions. Even though this appears to be a 2 dimensional problem, as soon as the 3rd dimension is included (the roll) all bends now become compound bends. 1 bend is now doing what 2 bends would normally do in 2 separate planes. For anyone to easily visualize your diagram, get yourself a rectangular box. A rectangular box of facial tissues will work. Place your tissue box on a table in front of you, with the flattest side down, and the 2nd flattest side facing you. Label your 3 dimensions onto that tissue box. The 800 will be written along the width of the front. The 214 will be written along the depth of the box. The 73 will be written onto the height of the box. 3 DIMENSIONS! Now poke two pencils into the box, at the points where your 3" pipe would enter and leave the box. For simplicity of understanding, rotate your box so that it matches Figure 22 on page 65 in the book: Tube Bending Simplified (available from Amazon.com or E-bay.com). Now follow the crystal clear explanation in the chapter COMPOUND LENGTH AND BEND on pages 65 through 69 in the book Tube Bending Simplified. After doing the easy to follow calculations, you will find that both of the fittings on the 831 mm center to center piece are 75.5 degree fittings. A 3" standard 90 degree elbow has a 4-1/2" radius. If you turn to page 13 in the book Tube Bending Simplified, under the 4-1/2" radius chart, you will see that a 75 degree bend has a face to center measurement of 3-7/16". Pretend that these are 75 degree bends, instead of 75.5 degree bends. Your 831 mm travel - (3-7/16 + 3-7/16) will equal 831 - 6-7/8 to equal an end to end pup piece of 824-1/8 mm.

Best ever explanation.thanks much

V...nice information Sr. .

Really this is great knowledge about rolling

Thanks, very useful 🌷🙏

You videos are great , i couldn't see the pipe marking video

Best explanation of piping degrees

Very very useful brother..thank you

Thank you 🙏

Good Information Sir

Good knowledge full video.

Thanks brother🙏❤❤ very useful 🌹🌹

Very useful

Thank u brother ❤️

Plz make video on how to find travel length for double rolling in feild measurment

So very important and thank you so much

Good information

Thank you very much

hola amigo doy reciente en este rubro ayúdeme haga un vídeo en español sobre el mismo tema, esta muy interesante . muchas gracias

👍👍

👌👌👍👍

please upload more sample rolling. thankyou

Thank you for

Amazing

Nice

Super

sir one doubt how did you get 88.9mm outder diameter from 3 inch pipe please reply me

Sir plz explain me I have one doubt ? You calculated 11.5 mm from the values of 800,214 and it's using flange side... At the same time you calculated 5degree also have to use flange side .... How its use 85 degree flange side ??

7:49 da li postoji mogucnost da bude prevedeno na srpski jezik.Video je izuzetno dobar i veoma detaljan

Buen video pasar español

Any job is available in this field... I am a good layout engg

How about 4" rolling 45°? What is the formula?

Sir degree agar deffrent ho to double rolling Ka travel kaise find out karenge please

It's ok

How is it finded 3 inch pipe od as 89?????

Easier: hypotinuse = √ 800² + 214² + 73² , then find angle between adjacent and hypotenuse with formula αº = tanˉ¹ ( 73 / √ 800²+ 214²)= 5.04º or between opposite and hypotinuse by Βº= tanˉ¹ ( √ 800²+ 214² / 73) = 84.96º and rotation of flange like shown in video.

Suoer

how you suddenly get hypothenius 831 ?

What's mean CR on Flange CR?

In (1) = Horizontal rolling we shall use the Sin relationship not the Tan one.

Bro now it's CRT

Bina rolling dikhaye kisi isometric drawing pe ek video banao bhai Hame kaise smjh me aayega ki rolling kaha h Ye question aaj mujhse Oman ke liye diye gaye interview me puchha gya tha Plz reply

Sir ,how to find distance 831 mm ?

Здравствуйте Хороший видео но непонятно что вы говорите сделать русский перевод пожалуйста Спасибо заранее

You mentioned in the formula wrong in the tan : opp/adj,

Ise awaj dekar samjhaye

Tan =add/hyp

831 hw it came in vertical rolling

π×D/360 ???????

関数電卓使ったら🎵(笑)❕🤣

Bol ke samjao koi Hana thori h Jo aap music Dali ho keya .....

Video no celerate

По русски можно

How u sloved or do calculations without speaking.. If u can't speak then I no need to make vedio

노래틀고 혼자 공부하노? 설명도 없이?

Nice