Seal Nut for Male Pipe (NPTF) What'sit?

[Artisan]

Can someone eduacate me on a Seal Nut for Male Pipe (NPTF)

I understand NPT threads but this thread nut, is it an extra seal or a seal for a loose fitting or a locknut kinda deal?

Photo Details

 

[moored4]

Here is a link to a seal nut!

459 | Seal Nut for Male Pipe

 

[Artisan]

moored If you look at my 1st post, you see where there is a link called PHOTO DETAILS, Click on it.

I want to know what it is used for and why...I know, as you will see, what it looks like.

Thank You Anywho...

 

[moored4]

moored If you look at my 1st post, you see where there is a link called PHOTO DETAILS, Click on it.

I want to know what it is used for and why...I know, as you will see, what it looks like.

Thank You Anywho...

Yes I missed the link! Opps. I have worked around pressure pipe all my life and have never used one. I could take a guess but will leave it to someone else that has used them! Interesting to find out my self! Might be the one thing I learn today! :thumbsup: Then I can go back to sleep!

 

[kevinj]

moored If you look at my 1st post, you see where there is a link called PHOTO DETAILS, Click on it.

I want to know what it is used for and why...I know, as you will see, what it looks like.

Thank You Anywho...

They are used on straight thread with o-ring seals such as cylinders where you need to set an alignment.

 

[Artisan]

Kevin, so.........is this s correct statement.

If a guy uses straight thread fittings, not tapered, but straight, he can use a
Seal Nut to lock the posistion of the straight fitting. The seal nut seals against leakage as well.

 

[kevinj]

Kevin, so.........is this s correct statement.

If a guy uses straight thread fittings, not tapered, but straight, he can use a
Seal Nut to lock the posistion of the straight fitting. The seal nut seals against leakage as well.

Kind of, you cannot just mix and match hydraulic stuff. Look at surplus center or baileys to see all the fittings and application. You can look at Parker also

 

[J_J]

They are used in a lot of different environment.


Duo-Seal Super Nut for Harley-Davidson Transmission -

Self-sealing nut

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ZāGO nuts meet and/or exceed the requirements of environments where gaseous or liquid pressure is a factor and a complete seal is required. ZāGO痴 nuts are also invaluable when a vacuum needs to be created. The nuts are reusable and can be made from numerous combinations of rubber and steel.

 

[whirly]

I also wanted to know. So I went to the source. Here is what Rick Burke of Discount Hydraulic Hose had to say:

"The seal pipe nut is simply a nut that threads onto a NPT thread and has a plastic sealing ring. This is usually used when a pipe is going through something like a plate."

I know .... it doesn't answer the whole question but it does indicate that it isn't used for sealing fitting unions.

 

[Artisan]

I am still in the dark. I get what J_J has input'd, but what J_J has input'd is not what I linked to. What I linked to at Discount Hoses is a "Seal Nut" , supposedly for use w/ hydralic hoses.

Where does one use that particular style seal nut in direct relation to hydralic hoses? HERE IS A LINK whereas the very first item is a "Seal Nut" on the NPTF fitting page.

 

[timster2]

I have used these on hydraulic fittings where elbows are used and just one more turn cant be done. You would line up the fitting as needed and lock down the sealing nut. O ring seal fittings have all but replaced these. You could use these as sort of a belt and suspenders approach for a loose pipe thread fitting on a irreplaceable part that you just want to seal the thread.

 

[Artisan]

Thanx timster...makes good sense.

 

[Kays Supply]

Like posted earlier, I could see putting a long thread on a pipe and threading through a bulkhead or plate. You could use a double nut to lock it to the bulkhead and then the threads at the end would be basically straight, and the lock nut you have would keep the fitting from bottoming out and not leaking.

 

[J_J]

"Seal-Nuts" give you positive seal on directional fittings like tees and elbows without distorting mounting bosses or damaging expensive valves and pumps.


Try this link.

http://www.jhf.com/Catalog_v6/1203.pdf

 

[Artisan]

J_J once again YOU DA' MAN! I don't know how you do it but you have all the answers and THANK YOU!
Yep, I bet ya there is many a man out there that if they had known about this part it would have made the lives much easier, moi' included! Now I know...

 

[tiredguy]

Can someone eduacate me on a Seal Nut for Male Pipe (NPTF)

I understand NPT threads but this thread nut, is it an extra seal or a seal for a loose fitting or a locknut kinda deal?

Photo Details

" I'm not the plumber, but I'm the plumber's son, and I can get you by until the plumber comes!" LOL! I learned that from my next older brother as we "grew up" in the plumbing & heating business as our dad was a master plumber and just like growing up on a farm and shoveling *****, we were well versed in the use of a #2 shovel digging the ditches pipe would be run in.

It's use as others have said are not to common today and has used like many have said. Many times it's use varied too. If you needed a "nipple" with long threads to say make a connection to a hydralic talk ( or water etc ) and didn't have a "welded in" coupler or nut this can be used to seal both sides of where it passes through the tank itself without leaking. Last time I used them was for putting a heating coil ( a loop of pipe ) inside the firebox of a wood fired furnace. Mane the loop out of 2 lenghts of pipe with 2 elbows and another nipple to make the "U" shaped loop. Both long pieces were threaded long and those "sealing nuts" were used on each ( inside & out ) side of the
the firebox to keep it sealed. There are many awesome hydralic fittings today that can be used of course, but the old tried and true is merely an older version that's been replaced with better technology.
Tired

 

[Artisan]

" I'm not the plumber, but I'm the plumber's son, and I can get you by until the plumber comes!" snip

Tired

I like it! Thanx for the input as well....