liquid tite fittings

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JeffKiper

Electrical geek
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Controls guy
I have to start out by saying I am a system integrator. PLC, Drives , HMI , robots, etc... I don't like to run wire unless it is in a panel. I have a great crew of pipe and wire guys. It looks like art work when they do there thing. Sometimes they aren't available on a short notice and we have to run pipe and wire. I stock 3/4" in the materials gang box. I hate 1/2".

Guys I must be crazy. I remember years ago using 1/2" fittings on 3/4" sealtite. We where doing machine wiring and 3/4" everything. Some of the devices where 1/2" KOs. The old timers had a box of 3/4" sealtite to 1/2" fittings in straight , 45 & 90.
Has anyone ever seen these or know where to get them? All the local supply houses loom at me like I have been smoking crack. Most of those guys just say stick to programming and let us do what we do.
 
Anything is possible, I have never seen what you described but they may be out there.

Just a thought, are you confusing 3/8" LFMC with 1/2" and 1/2" with 3/4"?

I ask because both 3/8 and 1/2 LFMC use fittings that fit 1/2" KOs.


Another possibility is a reducing fitting. 1/2" male x 3/4" female.
 
iwire said:
Anything is possible, I have never seen what you described but they may be out there.

Just a thought, are you confusing 3/8" LFMC with 1/2" and 1/2" with 3/4"?

I ask because both 3/8 and 1/2 LFMC use fittings that fit 1/2" KOs.


Another possibility is a reducing fitting. 1/2" male x 3/4" female.
Click to expand...

Something like this? Click to follow the link.

http://www.sealconusa.com/catalog/e-srf-cat/sealcon39.pdf

Welcome to the forum!
 
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Sorry for the delay in replying. My email had this site as spam. Hopefully corrected.

The 3/8 & 1/2 question has been mentioned before. I know it wasn't 3/8.

They where 3/4" sealtite by 1/2" npt.

Those enlargers would do the job.

I hate 1/2" because every "Harry Homeowner" buys a bender and tries to make things work that shouldn't. "Old lightbulb changer Joe" tells his boss that he is the maintence that can make it happen. It always looks like shit . I know there is a price point that makes it justifiable.
 
JeffKiper said:
Sorry for the delay in replying. My email had this site as spam. Hopefully corrected.

The 3/8 & 1/2 question has been mentioned before. I know it wasn't 3/8.

They where 3/4" sealtite by 1/2" npt.

Those enlargers would do the job.

I hate 1/2" because every "Harry Homeowner" buys a bender and tries to make things work that shouldn't. "Old lightbulb changer Joe" tells his boss that he is the maintence that can make it happen. It always looks like poop. I know there is a price point that makes it justifiable.
Click to expand...

Jeff, the owner of this forum is a very devout Christian and out of respect to him we all try very hard not to use foul language when posting. Thanks for understanding and keep posting thoughts and questions.
 
I do appreciate the heads up. I will make the correction in my posting vocabulary.
 
JeffKiper said:
I hate 1/2" because every "Harry Homeowner" buys a bender and tries to make things work that shouldn't. "Old lightbulb changer Joe" tells his boss that he is the maintence that can make it happen. It always looks like shit . I know there is a price point that makes it justifiable.
Click to expand...

Not just a "price point" in materials and/or labor.....................
Why would 1/2 inch work look like **** ?



"the right tool for the job"???............ well, the right material for the job also..............

2- 14's in a nipple or length ??? why stop at 3/4 ??? Go for the 4"............. That would "look" great............ :D
 
Hi Jeff,


I work for a manufacturer of liquidtight fittings, Thomas & Betts - A Member of the ABB Group. I have never seen a fitting that allowed 3/4" liquidtight to be connected to a 1/2" NPT hole. I also checked with our technical service department and got the same response. We do not offer this fitting.


The male threaded enlarger like qcroanoke recommended would be one option. Drilling and tapping a larger hole would be another.

Hope this helps.
 
Guys thanks for the replies. I am just going to stock 1/2" sealtite and fitting in the gang boxes.

The only time we really use this is when wiring field devices like safey gate switches.

Another question. Can I just buy the smooth throat for sealtite? Can't say I have ever seen them by themselves. We use them often to protect sensor cables.
 
Sorry I re-read my post and it was as clear as mud.

What I was trying to say was the compression ring that threads inside the sealtite. The sealtite fitting is a 3 pc unit not includong the plastic bushing. The 1st piece has male npt fitting in 1 end then a socket to accept the 2nd pc. On the outer wall of the socket it has male theads to accept the 3rd piece.

The 2nd pc threads into the sealtite is what I would like to have separately.

We use sealtite just to protect a sensor cable. Imagine if the sealtite was just cut off it would look ungly. So we thread the 2nd pc ( inner bushing, throat, .... ) in the cut end and make it look a little nicer.

Hopefully that help explain it a little better.
 
What I normally use is a cable grip fitting, it look professionally installed and prevents the cable from being pulled out of the conduit. I have been doing it this way for the past 25 years.

PJHolguin :cool:



JeffKiper said:
Sorry I re-read my post and it was as clear as mud.

What I was trying to say was the compression ring that threads inside the sealtite. The sealtite fitting is a 3 pc unit not includong the plastic bushing. The 1st piece has male npt fitting in 1 end then a socket to accept the 2nd pc. On the outer wall of the socket it has male theads to accept the 3rd piece.

The 2nd pc threads into the sealtite is what I would like to have separately.

We use sealtite just to protect a sensor cable. Imagine if the sealtite was just cut off it would look ungly. So we thread the 2nd pc ( inner bushing, throat, .... ) in the cut end and make it look a little nicer.

Hopefully that help explain it a little better.
Click to expand...
 
So you use a threaded coupling and a cord grip bushing. We did a few that way. I don't use that anymore . I don't know why we jist don't.
 
Yes or the proper transitional fitting... this also prevents the conduit from becoming a breach in the system. I have cleaned up a few installation with an open end for cable and found water or corrosive materials back as far as the main control enclosure.

PJHolguin:cool:

JeffKiper said:
So you use a threaded coupling and a cord grip bushing. We did a few that way. I don't use that anymore . I don't know why we jist don't.
Click to expand...
 
JeffKiper said:
Sorry I re-read my post and it was as clear as mud.

What I was trying to say was the compression ring that threads inside the sealtite. The sealtite fitting is a 3 pc unit not includong the plastic bushing. The 1st piece has male npt fitting in 1 end then a socket to accept the 2nd pc. On the outer wall of the socket it has male theads to accept the 3rd piece.

The 2nd pc threads into the sealtite is what I would like to have separately.

We use sealtite just to protect a sensor cable. Imagine if the sealtite was just cut off it would look ungly. So we thread the 2nd pc ( inner bushing, throat, .... ) in the cut end and make it look a little nicer.

Hopefully that help explain it a little better.
Click to expand...
Why not just use LFNC?

sealtite-non-metallic-flexible-conduit.jpg
 
pjholguin said:
Yes or the proper transitional fitting... this also prevents the conduit from becoming a breach in the system. I have cleaned up a few installation with an open end for cable and found water or corrosive materials back as far as the main control enclosure.

PJHolguin:cool:
Click to expand...


Yea I hadn't thought about leaving the system open to air and nasty oils floating around a plant. Good point. Thanks.
 
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