Fitting allowance for the piping trades

Рет қаралды 175,447

Күн бұрын

This video goes through an example of how to calculate the end to end measurement of a pipe given the center to center measurement and using fitting allowance as a guide.

Пікірлер: 108

@maryannmoran-smyth3453 8 ай бұрын

I’ve been working with pipes for years and well. This was great I never knew it before but you learn something new every day… Great showman… Keep on rocking.

@zummliller Жыл бұрын

Mr T, thank you and God bless you for simplifying these vital calculations. This will be a breeze transfering to PVC piping!

@johnjohn-ne8fw Жыл бұрын

Seriously. One of the most helpful videos on KZfaq! Thank you 🙏

@billlugo52 5 жыл бұрын

Great video I’m an apprentice and was having a hard time with this while working with copper but this makes a lot of sense

@tradestutor1191 5 жыл бұрын

Thanks Bill. I'm glad it helped.Good luck with your studies.

@Chrominance87 4 жыл бұрын

This was a better explanation than the one on my schools website. Well done.

@tradestutor1191 4 жыл бұрын

thank you. I'm glad it worked for you.

@richg1136 5 жыл бұрын

I'm going to write down the link for the salesman at Lowe's plumbing department. He explained the principles but wasn't aware of formula and standards table. Awesome video. My trellis frame for vertical vegetable gardening constructed of 1/2 inch galvanized steel is well on its way to completion! Thank you.

@tradestutor1191 5 жыл бұрын

Awesome!. Thanks. I'm glad it worked for you! Take care

@rtz549 11 ай бұрын

All those fractions in the calculations are a perfect example of why metric is easier and simpler.

@mattt1021 2 жыл бұрын

As someone starting their own side business in the trades I greatly appreciate you for these videos!

@tradestutor1191 2 жыл бұрын

Thanks Matt. Thanks for watching.

@confesorparedes4520 5 ай бұрын

Excellent explanation ! Thank you.

@Renefuentes80 3 жыл бұрын

Thank you very much! Very informative!

@dancehallvibestv2847 3 жыл бұрын

Wish I could like this video a thousand times

@tradestutor1191 3 жыл бұрын

thank you Dane. I'm glad you enjoyed it!

@pauldaoust1948 5 ай бұрын

AHHH dang This made me understand fitting allowance much better!

@tradestutor1191 5 ай бұрын

Awesome! Thanks for watching.

@conqwiztadore2213 5 жыл бұрын

best video ever

@russkiy_3 26 күн бұрын

Gold !

@nicholassibson930 Жыл бұрын

Super helpful video! Thank you!!

@tradestutor1191 Жыл бұрын

You're welcome and thanks for watching

@minnesotasalamander5913 11 ай бұрын

Good teaching.thanks.

@michaelbigam3253 3 жыл бұрын

Super helpful, thank you!

@tradestutor1191 3 жыл бұрын

You're welcome. I'm glad you enjoyed it.

@yonguru 3 жыл бұрын

Ur videos are so helpful.. keep on uploading plz

@tradestutor1191 3 жыл бұрын

Thank you. I'm glad they help.

@threestone2213 Жыл бұрын

Great explanation!! Thanks!!

@tradestutor1191 Жыл бұрын

You're welcome and thanks for watching!

@fredf5381 3 жыл бұрын

How do you measure center to center going from a reducing bell to an ell?

@startover125 4 жыл бұрын

Hello, excellent video on threaded pipe, thank you very much, do you happen to have a video on three-quarter inch copper pipe fittings?, As I am adding some fin tube to an unheated room, and I now have 13 fittings to make that happen, but would like to keep it close to the ceiling in the basement.

@tradestutor1191 4 жыл бұрын

Hi Carl: I'm glad you liked the video. Unfortunately I don't have a video for three quarter inch copper pipe fittings. I'll add it to my list of videos to make though. Have a great day.

@iamlewis4982 2 жыл бұрын

Hey there. How would I find a centre to cut size

@whasumara73 7 ай бұрын

Excellent. Thank you so much.-Jose

@tradestutor1191 6 ай бұрын

You're welcome and thanks for watching.

@TheHakopa 9 ай бұрын

The east side of the pipe (FA), at 3:16 the inside line is touching the fitting, the west side is different. Is that critical?

@Ommarrie 9 ай бұрын

Can you do a video on calculating end to end measurement with a union?

@castillodp73 2 жыл бұрын

Hello, excellent explanation for the measures required in threaded pipe installation. My query has to do with the fitting as such, that is, from where they obtain the dimensions of each threaded accessory, depending on whether it is, ANSI # 150 or ANSI # 300, or 2000 #, 3000 # or 6000 #, according to the Manufacturers' catalogs can vary from one to the other, I tried to take the data and dimensions of ASME B1.20.1 but the FC and TE of each fitting differ with the manufacturer's catalogs even with the example in the video. For the example in the video that is a FC = 2 "and a TE = ⅞", if I'm wrong please correct me, according to the tables I got corresponds to a fitting, 90 degree elbow of the threaded type NPT 3000 # and it would be to couple a pipe of nominal diameter or size NPS = 1¼ ", FC = 2" but TE = ¹¹⁄₁₆ and in other cases TE = ⅝ ". I appreciate the clarification and, if possible, provide the source table of the information with the dimensions of the fittings.

@tradestutor1191 2 жыл бұрын

Hello: The numbers I used in the example were not related to a book of any sort. They were only used for explanatory purposes. Thanks for watching.

@user-ve1mm8oc3l 9 ай бұрын

Great.Thank you

@tradestutor1191 9 ай бұрын

You're welcome. Thanks for watching

@traviscartwright6267 9 ай бұрын

Can you please do a video for socket weld calculations

@charlesjohnson7222 6 күн бұрын

Is the thread engagement always 7/8?

@godmode3359 Жыл бұрын

So how do we find the measurements for the thread engagement, you sort of just said we will just say it's 7/8" but how do I know what the thread engagement is on a T or a union?

@tradestutor1191 Жыл бұрын

The thread engagement will depend on the type of material and size of pipe. This information generally will be supplied by the manufacturer of the material.

@MrSprintcat 2 жыл бұрын

Good stuff sir

@tradestutor1191 2 жыл бұрын

Thank you and thanks for watching

@leoaranton7900 3 жыл бұрын

Thank you Sir

@tradestutor1191 3 жыл бұрын

You are very welcome Leo. Thanks for watching and I'm glad you enjoyed the video.

@atgimm2090 2 жыл бұрын

Thank you so so so so so much. My teacher couldn't even teach this !

@tradestutor1191 2 жыл бұрын

You're welcome. Thanks for watching.

@castillodp73 2 жыл бұрын

Please can you help me solve or know how to solve problems or real situations of take off in threaded joints. For this examples: 1) A piece of NPS ∅2" pipe is being cut to run between two 90° degree threaded fittings. The center-to-center measurement of the fittings is 7'-2¼". What is the cut length of the pipe? 2) A length of NPS ∅1½ inch pipe is to be cut run between two 90° degree 6.000# threaded fittings. The fittings measure 7 ft 2¼ inches center to center. What is the cut length of the pipe

@vkarabin 10 ай бұрын

Question.. how to remove pipe between two fittings without having to remove more then what’s necessary?.. thanks

@michaelbraun6542 4 ай бұрын

Turn the water or fluid off and drain. Make sure both pipe ends are supported. Cut the pipe out. You can add pipe back with a union.

@conqwiztadore2213 5 жыл бұрын

what if it is a cast iron pipe joint using mj clamps? would it be on e-e minus the fc?

@tradestutor1191 5 жыл бұрын

Hello: When dealing with cast iron the clamps themselves count for very little. Lets say you had two 90 degree cast iron elbows and you were looking to cut a piece of pipe (E-E) which would fit between the two 90's in order to get the correct centre to centre measurement. You would take the C-C measurement and minus the face to centre of one 90 degree and then the face to centre of the other 90 degree. Essentially you would be taking the centre to centre measurement and subtracting two face to centre measurements as both 90's should be the same. to account for the coupling required (one on each side) you would subtract about 1/4 inch for each one, for a total of 1/2 inch. This 1/4 inch accounts for the rubber piece within the coupling that separates the pipe from the fitting. I hope this helps.

@Chrominance87 4 жыл бұрын

That's funny that you mentioned this. I had to deal with that exact same thing today but with a 2 by 1 and a 1/2 cast iron tee. I ended up just treating it like a butt weld fitting.

@Homoud 3 жыл бұрын

How does it differ if the pipe will be fitted to a butt weld elbow instead of a threaded one?

@tradestutor1191 3 жыл бұрын

Hi Homoud: A butt weld wll have no fitting allowance so you will essentially be taking the center to center measurement of the pipe and substracting the fact to center measurement of each fitting.

@austinhologroski 5 жыл бұрын

Couldn't you just measure the face to face and then add both thread engagements?

@tradestutor1191 5 жыл бұрын

Yes, that would work as well. The reason you would need the fitting allowance is because generally measurements are given center to center and for longer distances between fittings getting the face to face measurement might be difficult.

@SombraLocs 3 жыл бұрын

On 2" pipe, I measure from face to face and add 1" to each side.

@27dbacks27 2 жыл бұрын

That’s how I measure and plumb all my runs. My question is since it’s NPT and the threads are tapered meaning they theoretically aren’t tighten/bottom out to the end of the thread engagement how much of the thread engagement from both of the fittings should I add to my face to face measurement to allow the fittings to be sufficiently tighten while maintaining the center to center of the fittings for a run I’m trying to make.

@DjaliGoatShow 4 жыл бұрын

So how do you calculate FA for a 45 degree angle fitting?

@tradestutor1191 4 жыл бұрын

Hi Jolly Goat: It will be the same math. You would take the face-to -center of the 45 and then minus the thread engagement. Yous should be able to find that information in a pipe trades book. Thanks for watching

@denvercharlebois699 9 ай бұрын

Or you can just measure with a measuring tape the fitting allowance. Put a dot on the centre part and where the end of the hub is and measure it and that’s your allowance.

@JesseMusicc 5 жыл бұрын

How exactly did you get a TE of 7/8 ?

@tradestutor1191 5 жыл бұрын

Hi Jesse: The numbers are just used for the example and they do not relate to any specific fitting.

@conqwiztadore2213 5 жыл бұрын

the TE is predetermined specific to the type/size of pipe/fitting if i am not wrong

@tradestutor1191 5 жыл бұрын

Yes, you are correct. You can find tables in piping textbooks or other piping reference manuals which give you the TE specific to the type and size of pipe.

@JM-rl6bq 5 жыл бұрын

Correct me if I'm wrong, but say you're going face of a fitting to center, would you have to add the TE for the "face of fitting" portion then subtract the center? So, as an example 3/4" Black Iron 90 has a TE of 1/4 and the measurement from the face of fitting to the center is 45 inches, then could you just subtract the FA (on the other 90; saying it works out to be 1 1/4) from the TE to get the E-E measurement? Thus, gives an E-E of 44 inches? Does that make sense?

@tradestutor1191 5 жыл бұрын

I think the face to center measurement you are referring to is different than the one I refer to in the video. When I say face to center I'm referring to the face of the fitting to the center of the fitting. It sounds like the measurement you are referring to is the face of the fitting to the center of the piping arrangement. If that is the case then a different set of calculations would be required. The numbers in your example do seem to work if I'm understanding correctly what you did.

@boby115 4 жыл бұрын

If we know the thread engagement is at 7/8 " & distance between the two elbow faces is 2 ' 3/4" why don't we just add it up? (7/8" + 7/8" + 2' 3/4" (6/8")=2' 18/8" (2' 2 1/4")

@gurwindergill9037 Жыл бұрын

How do you find the thread engagement if it’s not given?

@tradestutor1191 Жыл бұрын

HI Gurwinder: The thread engagement can usually be found in the pipe manufacturer's spec book

@josepndenardo9942 2 жыл бұрын

I'm lazy measure face to face and add 1" 1/4

@philgrape9449 4 жыл бұрын

thanks

@tradestutor1191 4 жыл бұрын

You're welcome

@alexz6807 Жыл бұрын

Does this apply to pvc pipe as well ?

@tradestutor1191 Жыл бұрын

HI Alex: Yes it does. You'll have to look at the pipe manufacturer's documentation for proper face to center measurements as well as fitting engagements. Thanks for watching.

@darwinsator9513 3 жыл бұрын

I have a question is 7/8 is constant?

@tradestutor1191 3 жыл бұрын

Hi Darwin: No, its not a constant. its just a number I picked to use as an example. Thanks for watching.

@richnelson753 2 жыл бұрын

@@tradestutor1191 if the thread engagement isn't constant then what is it for all sizes of pipe is there a chart?

@tradestutor1191 2 жыл бұрын

@@richnelson753 Yes, you can find charts from the pipe manufacturer and I believe there may be a chart in the IPT handbook

@The-cu4rj 3 жыл бұрын

But the thread on each end will not thread in exactly by TE amount!

@tradestutor1191 3 жыл бұрын

Hello: The theory behind it is that it does thread in the exact amount. This may differ in the field but if we are just going by the theory this is the way to go.

@marvinostman522 3 жыл бұрын

Mr Precise Lockheed you could take your digital dial calipers and measure and mark the TE on both ends. Then it will work providing you put exactly the number of wraps of Teflon tape on both ends of the pipe and then precisely torque both joints together. I can tell by your comment you aren't that particular.

@hishamchohan494 3 жыл бұрын

In reality , Every brand fitting have different end size and Ntp or bsp also

@tradestutor1191 3 жыл бұрын

That is definitely true

@samsc7527 3 жыл бұрын

what's the size of the pipe? 2" ------ I guess

@tradestutor1191 3 жыл бұрын

Hi Sam: the numbers are just examples so in the end it doesn't really matter. It would definitely matter in the field though. You would have to find a manufacturer's handbook or some type of pipe fitting handbook which would give you the information you would need to answer the question.

@waytospergtherebro Жыл бұрын

Now explain how you actually install the pipe between two 90 degree fittings without removing one.

@denvercharlebois699 9 ай бұрын

It’s pretty basic. Use a measuring tape lmao

@bryantimko2372 2 жыл бұрын

Did this guy really just go from your thread allowances 7/8 of an inch two 1 1/8 on each end

@vitorao 8 ай бұрын

Fitting allowance? Only if the fitting does his chores...

@jscott8110 9 ай бұрын

Not hating genuinely curious, do Americans really measure in feet and inches?

@tradestutor1191 9 ай бұрын

Yup, for the most part.

@xlilace14x Жыл бұрын

I know you showing basics but for any apprentices out there it must be said that you NEVER make up the entire fitting with threads it’s usually two turns by hand and 2-3 by pipe wrench so you measurement would actually be shorter just saying

@socksincrocks4421 7 ай бұрын

Absolutely ridiculous how much filler there is. Measure from face to face and then add 2 times TE... done

@Adamsito864 3 жыл бұрын

pov no entendiste nada

@erasamus1057 Жыл бұрын

i mean why not show on a real pipe and show how to measure these in real life without a handbook or even animate it, and try to be at least a quarter excited

@stevenwilson5328 5 ай бұрын

This explained things really well for me. If you can’t learn from it that’s a personal problem not the author.

@erasamus1057 5 ай бұрын

@@stevenwilson5328this explains it well it just wasn't working out in the field for me and I learn better by seeing someone do something, your such a genius why are you here?

@New.Beginnings88 3 ай бұрын

This guys a math teacher not a plumber with all the tools