Hydraulic Quick Couplers With Push/pull Breakaway Sleeves?

[npalen]

Same reason I used the same style and size (3/8") on my loader valve.

Check their website, they may have something that fits exactly what you need. I just did a quick search and found those two options.

I notice that the Faster brand comes only with British and metric threads

 

[ptsg]

I notice that the Faster brand comes only with British and metric threads

So you want those to thread the QDs on a NPT fitting?

I've mixed NPT with BSPP fittings with great success and no leaks. I usually throw a drop or two of hydraulic sealant, mostly for peace of mind. Not ideal, but works.

 

[npalen]

So you want those to thread the QDs on a NPT fitting?

I've mixed NPT with BSPP fittings with great success and no leaks. I usually throw a drop or two of hydraulic sealant, mostly for peace of mind. Not ideal, but works.

First choice would be JIC but, yes, NPT seems to be most common on the QDs. I didn't realize NPT could be mixed with BSPP. I'm thinking 3/8" is 18 pitch in NPT and 19 pitch in BSPP.

Could probably use some of these:

9005-06-04 | 3/8" Male JIC X 1/4" Male BSPP

Check out the deal on 9005-06-04 | 3/8" Male JIC X 1/4" Male BSPP at DiscountHydraulicHose.com

www.discounthydraulichose.com

I am surprised that the Faster 3/8" QDs have only 1/4" BSPP threads as most 3/8" QD's I've seen are 3/8" thread.

Edit: I see that the Faster 3/8" panel mount QDs are offered in 3/8" NPTF.

 

[ptsg]

Technically, it shouldn't mix but in a pinch, it does the trick.

If you can source the right fittings, it's definitely the way to go with less "hackery" going on.

 

[LD1]

I dont think delrin is hard enough to work for a sleeve.

First....with the push pull design....you are mounting it by said sleeve. I see that being problem #1. ANd #2 would be that its just too soft. The steel balls that hold the male fitting in would deform the plastic with use, and I dont even think it would hold the plug in under pressure....I think the steel balls would just deform the plastic.

Not trying to talk you out of what you want, but I think a wiser move would be to spent the time/money on the more "standard" setup. And go with the 5675's.

And if not, at least go with the 5675's for the females on the mahindra. So those remotes are standard like 99.9% of other tractors out there. Then simply make up an adapter with a 5675 male plug threaded into a 7241-a female. Pop those on the implement hose....then into the remotes on the mahindra. Leave those adapters with the mahindra. Should be able to make the adapters for ~$30ea then the mahindra now has standard remotes

Another small consideration.....the 3/8 7241-a couplings are typically only rated at 5-6 GPM. Not sure what your intended usage is or what the mahindra flows.

 

[npalen]

I dont think delrin is hard enough to work for a sleeve.

First....with the push pull design....you are mounting it by said sleeve. I see that being problem #1. ANd #2 would be that its just too soft. The steel balls that hold the male fitting in would deform the plastic with use, and I dont even think it would hold the plug in under pressure....I think the steel balls would just deform the plastic.

Not trying to talk you out of what you want, but I think a wiser move would be to spent the time/money on the more "standard" setup. And go with the 5675's.

And if not, at least go with the 5675's for the females on the mahindra. So those remotes are standard like 99.9% of other tractors out there. Then simply make up an adapter with a 5675 male plug threaded into a 7241-a female. Pop those on the implement hose....then into the remotes on the mahindra. Leave those adapters with the mahindra. Should be able to make the adapters for ~$30ea then the mahindra now has standard remotes

Another small consideration.....the 3/8 7241-a couplings are typically only rated at 5-6 GPM. Not sure what your intended usage is or what the mahindra flows. I do have a pair of adapters to go from 1/2" 5675's to 3/8" 7241's and you make a good point about the flow rate of the 3/8". The Mahindra 3015 pump is rated at 7.9 GPM and I believe I saw about a 40 psi pressure drop on the chart for the difference in flow rates. Not sure what that would reflect in flow rate drop.

I tend to agree on the delrin durability for retro fit sleeves to convert to push/pull. Aluminum might be an alternative but then corrosion again is a problem. Making these sleeves is probably not feasible but rather a winter kill time lathe project. The trick probably would be the springs to preload in both directions.

I recall back when every tractor manufacturer had proprietary quik couplers. What a pain that was! It's interesting that they finally decided on a non tractor manufacturers design with Pioneer.

 

[LD1]

I tend to agree on the delrin durability for retro fit sleeves to convert to push/pull. Aluminum might be an alternative but then corrosion again is a problem. Making these sleeves is probably not feasible but rather a winter kill time lathe project. The trick probably would be the springs to preload in both directions.

I recall back when every tractor manufacturer had proprietary quik couplers. What a pain that was! It's interesting that they finally decided on a non tractor manufacturers design with Pioneer.

Is there a reason you wouldnt be satisfied with a set of standard 5675 1/2" couplers on the mahindra then just make a couple of adapters if you dont want to change the other tractor and all the implements.

 

[npalen]

Is there a reason you wouldnt be satisfied with a set of standard 5675 1/2" couplers on the mahindra then just make a couple of adapters if you dont want to change the other tractor and all the implements.

No legitimate reason other than I'm looking at a four spool remote and cost and space per port becomes an issue whichever route one goes. It seems that space/clutter becomes an issue quickly on these smaller tractors so just looking at the alternatives.

By the way, you mentioned pressure drop with 3/8" QDs and I believe i've seen about 40 PSI drop running the 7.9 GPM pump output of the Mahindra 3015 thru 3/8" QDs. I don't know if that is an issue given that I rarely run full throttle when doing grading work but it could be. Also, I don't have a good feel for what 40 PSI drop does to rate of flow.

I do appreciate all your feedback!