Which hydraulic coupler do I need

[TractorGuy]

If you have a local place that makes hydraulic hoses check with them and take your photos and measurements.

 

[UniversalHosman]

Hi Ken,

I can't really tell from the photo how this was set up but if you try a 6404-08-08 FOR to MP adapter, you should be able to connect your MOR fitting to a quick coupler with no problems. This adapter converts with no swivel. I'm not sure what the Parker number is. The part numbers I use are from Tompkins which are recognized over most of the industry.

 

[KenB2920]

Hi Ken, I can't really tell from the photo how this was set up but if you try a 6404-08-08 FOR to MP adapter, you should be able to connect your MOR fitting to a quick coupler with no problems. This adapter converts with no swivel. I'm not sure what the Parker number is. The part numbers I use are from Tompkins which are recognized over most of the industry.

I may try this after my newest fix.... I stopped back at the Parker store(met another great employee) and I showed him my part. He stated the swivel is NIJ and torquing it down like a npt is not permitted as it will ruin the flange

Dope fully this is true Nd the fix works! If now, a new adapter will be coming

 

[KenB2920]

If you have a local place that makes hydraulic hoses check with them and take your photos and measurements.

This is where I went, great place I never knew existed

 

[KenB2920]

Ok, well this was a crock of crap. Still leaks under the new fittings (which were the spin fittings). So I called them and hopefully this coming week I'll get a straight adapter and not a fancy spinning couple.... SMH!!!

 

[UniversalHosman]

I may try this after my newest fix.... I stopped back at the Parker store(met another great employee) and I showed him my part. He stated the swivel is NIJ and torquing it down like a npt is not permitted as it will ruin the flange

Dope fully this is true Nd the fix works! If now, a new adapter will be coming

Ken,

I am not familiar with that acronym. If you could elaborate I would appreciate it. Sorry to hear your fix didn't take.

Andy

 

[LD1]

Never heard of NIJ either.

From the pic you posted, it looks like a Female JIC to NPT adapter.

JIC and ORB threads are the same. Same dimensional specs and one will thread into the other. However the seal is different. The ORB male threads dont have the 37 degree seat and arent normally long enough to tighten up the swivel anyway. And the way it looks like the o-ring is bulging out, it looks like you have a JIC fitting, That bottomed out on the o-ring, but is incapable of sealing at the swivel.

With a JIC swivel fitting, once tight, it should no longer swivel. The joint where it was leaking at the swivel, was it still loose and free to spin?

 

[KenB2920]

Never heard of NIJ either. From the pic you posted, it looks like a Female JIC to NPT adapter. JIC and ORB threads are the same. Same dimensional specs and one will thread into the other. However the seal is different. The ORB male threads dont have the 37 degree seat and arent normally long enough to tighten up the swivel anyway. And the way it looks like the o-ring is bulging out, it looks like you have a JIC fitting, That bottomed out on the o-ring, but is incapable of sealing at the swivel. With a JIC swivel fitting, once tight, it should no longer swivel. The joint where it was leaking at the swivel, was it still loose and free to spin?

Yes, lose and free to spin

 

[LD1]

Yep. You likely put a JIC female on that ORB hose.

Not saying they don't make one, but I have never seen a swivel female ORB fitting.

But you can get one that swicela on the npt side

 

[KenB2920]

Yep. You likely put a JIC female on that ORB hose. Not saying they don't make one, but I have never seen a swivel female ORB fitting. But you can get one that swicela on the npt side

Ugh, you sound absolutely correct. I hope to get to the bottom of this later today.

I've learned a lot but I still have a long way to go. The good part is, I keep adding layers of knowledge to my onion

 

[Tx Jim]

Yep. You likely put a JIC female on that ORB hose.

Not saying they don't make one, but I have never seen a swivel female ORB fitting.

Yes there are swivel ORB fittings.

 

[LD1]

Yes there are swivel ORB fittings.

Not saying there isnt, but I have never seen one. Got any examples? Cause they make JIC, and Pipe in swivel fittings. So whenever you need a swivel adapter, its always the JIC or NPT/NPSM fitting that is the swivel end.

DHH dont show any that swivel on the ORB side SAE Straight Thread O-Ring (ORB) Hydraulic Fittings

To ken....I believe this is the fitting you need 6404 | Female Straight Thread x Male Pipe

 

[UniversalHosman]

Not saying there isnt, but I have never seen one. Got any examples? Cause they make JIC, and Pipe in swivel fittings. So whenever you need a swivel adapter, its always the JIC or NPT/NPSM fitting that is the swivel end.

DHH dont show any that swivel on the ORB side SAE Straight Thread O-Ring (ORB) Hydraulic Fittings

To ken....I believe this is the fitting you need 6404 | Female Straight Thread x Male Pipe

Yeah, they do make a Male ORB Swivel. You can see one here:

but you'll have to to down to the bottom of the page to find it.

Either way the 6404 adapter should work.

Andy

 

[LD1]

Yeah, they do make a Male ORB Swivel. You can see one here:

but you'll have to to down to the bottom of the page to find it.

Either way the 6404 adapter should work.

Andy

Only one I saw was a hose end. Yea, makes sense to have one of them swivel.

But what about an adapter? Everything is ridgid on the ORB side. Sure, you can get an ORB x JIC swivel, or ORB by NPT or NPSM swivel. And achieve an adapter that ultimately swivels. But the swivel is on the JIC or pipe thread side

 

[UniversalHosman]

My apologies, I misunderstood your post. Now that I understand you are talking about adapters - you are correct. There are no "swivel" ORB adapters that I know of.

Andy

 

[LD1]

No worries. I ain't a hydraulic expert. They very well could have made an adaptor, I just personally have never ran across one.

 

[KenB2920]

Ok, well I received the right part yesterday and it all works.

First off, I mention NIJ. LMAO, I will have to edit my earlier post advising there is no such thing. I have no idea where I screwed up the letter but I was corrected on here and it is JIC. I apologize if I throw anyone else off who scans through this thread and reads that.

So essentially the hose end is a size 8-ORB....
To translate this. 8 equals 1/2". Every additional 2 is an 1/8" increment.
2 - 1/8"
4 - 1/4"
6 - 3/8"
8 - 1/2"

ORB is: O - ring boss

So I needed a 8-orb female to JIC male which fit into the ag ball fitting. I also learned ball and poppet ends are compatible.

Anyhow, hope this helps someone else down the line. If any of the hydraulic guys out there want to elaborate on this feel free. (Or correct what they see fit). Thanks for all the help.

And I did tape all my threads. I know there is controversy on this as well.

 

[LD1]

Yep, generally not good practice to use tape. Teflon paste is okay, but I prefer loctite 545. Its a purple liquid that looks like loctite threadlocker (in consistency).

As to numbering systems, when dealing with JIC or ORB fittings (sometimes referred to as SAE thread), the dash number is in 1/16ths of an inch.

Cannot just assume for every 2 is 1/8. because what about odd numbers. (They do make a -5 fitting)

 

[KenB2920]

Yep, generally not good practice to use tape. Teflon paste is okay, but I prefer loctite 545. Its a purple liquid that looks like loctite threadlocker (in consistency). As to numbering systems, when dealing with JIC or ORB fittings (sometimes referred to as SAE thread), the dash number is in 1/16ths of an inch. Cannot just assume for every 2 is 1/8. because what about odd numbers. (They do make a -5 fitting)

Lol, good call, I was just regurgitating what was told to me...

As for the paste, I will look into it in the future. I just did what the Parker dealer did. I did notice after taking the fitting apart several times how the tape seems to break down.

 

[LD1]

Lol, good call, I was just regurgitating what was told to me...

As for the paste, I will look into it in the future. I just did what the Parker dealer did. I did notice after taking the fitting apart several times how the tape seems to break down.

If you plan on doing alot of hydraulics, its worth buying a bottle of 545.

If you only occasionally do hydraulics, but also need something for the ocassional air line, plumbing in the house, etc...then a tube/can of teflon paste would be my recommendation.