quick-couplers - when are iso-5675 compatible with iso-7241-1 (A?)

[orangetree]

Trying to identify the fittings on my tractor vs what came with an implement. I have two that seem extremely similar except the fluid-lock (ball, "poppet"). Some sites such as Incompatible Hydraulic Couplers: ISO 5675 (Ball, AG type) vs. ISO 7241-1 report some issues in cross-compatibility. But they are REALLY similar, and plenty of users seem to mate the two.

Are iso5675 compatible with iso7241? IFF this is true, it would seem to only be true for the 1/2" body size? Does the presence of a ball (vs poppet) mean anything?

I don't mind buying new fittings to be sure, just want it to be correct. If I'm changing fittings on the rear remotes or 3rd function, is there a "most common" for CUT's in the US?

Here are my fittings:

1/2" Ag / 5675?

1/2" 7241-1 A?

3/8 7241-1 B ?

 

[orangetree]

Here's info from the link in my OP about 5675 & 7241 not working robustly together, and summit-hydraulics, showing the parts. Notably, Summit does NOT show a ball for the iso5675? Is this correct?

 

[npalen]

I can't answer your questions but do have a suggestion: Hold the calipers at ninety degrees to what your pics show when taking a measurement. That will give a more accurate measurement especially if you rock the caliper jaws slightly side to side while watching the dial to make sure of a correct measurement.

One thing noticeably different between 7241-1 A and B series is the length of the land that you are measuring in the pics.

Regarding the ball verses poppet style, I tend to agree that it doesn't make any difference but do wonder why some are made each way.

 

[WranglerX]

I can't answer your questions but do have a suggestion: Hold the calipers at ninety degrees to what your pics show when taking a measurement. That will give a more accurate measurement especially if you rock the caliper jaws slightly side to side while watching the dial to make sure of a correct measurement.

One thing noticeably different between 7241-1 A and B series is the length of the land that you are measuring in the pics.

Regarding the ball verses poppet style, I tend to agree that it doesn't make any difference but do wonder why some are made each way.

YES!..... Calipers are no totally accurate when used like in previous pictures....
IF the coupler are purported to be the same size it may be all about how well the locking ring balls hold components and how well "O" rings seal....

 

[orangetree]

yes, yes. I'm aware how to use calipers - what I couldn't do is take a picture from two angles. And the thread is picture-long enough as it is.

 

[orangetree]

still struggling to get a clear answer here, but one EverythingAttachements rep said:

• he believes that the connector they shipped (that's the grapple in the pic(s)) is the AG style, which would be ISO-5675
• he thought that the one half inch size (specifically/solely) in ISO-5675 and ISO-7241-1 A were ~fully interchangeable

They do sure look similar, so I'm inclinded to believe this. Or disinclined to believe that the standards org would make it so confusing if they were not (hmmm... misplaced?)

 

[npalen]

yes, yes. I'm aware how to use calipers - what I couldn't do is take a picture from two angles. And the thread is picture-long enough as it is.
View attachment 743490

Okay. We forgive you!

 

[orangetree]

if no one has experience with how compatible these are; is there a "standard" type stateside for tractors & implements?

 

[ponytug]

I've been through this as my tractor has the non-ISO Faster NV series poppets. Normally balls and poppets are different standards, but yes, the Faster NV series poppets are supposed to interchange with the ISO 5675 series by size for the 1/2" size ONLY, but I do not know how well the fluid flow works ball to poppet, as the designs are designed for ball to ball and poppet to poppet.

In addition to diameter, you want to pay close attention to distance to the locking lip on the male fitting, and the profile of the lip. There are two slightly different versions.

If it were me, I would get a ball version to match what you have.

You could chat with Blake at Discount hydraulic hose, if you want a professional opinion.

All the best,

Peter

 

[orangetree]

I've been through this as my tractor has the non-ISO Faster NV series poppets. Normally balls and poppets are different standards, but yes, the Faster NV series poppets are supposed to interchange with the ISO 5675 series by size for the 1/2" size ONLY, but I do not know how well the fluid flow works ball to poppet, as the designs are designed for ball to ball and poppet to poppet.

In addition to diameter, you want to pay close attention to distance to the locking lip on the male fitting, and the profile of the lip. There are two slightly different versions.

If it were me, I would get a ball version to match what you have.

All the best,

Peter

a few sources, including the Summit spec sheet, seem to indicate that it's not always a ball ... does this track your experience, or should all AG/5675 connectors use a ball?