Hydraulic hose replacement can be economically accomplished by installing adapter fittings (Discount Hose) to convert to NPT then using standard hoses with NPT ends from local farm supply ($5 to $25 for 3/8"). After installing the adapters, I just have to replace the NPT hose section. I only have to keep a few different length hoses with NPT ends to repair anything on the tractor, loader, etc. This is less expensive than keeping lots of different hose end fittings, bulk hose and investing in crimpers, etc.
hydraulic hoses
- Thread starter unitedhose
- Start date
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Discount Hydraulic Hose
Silver Member, Advertiser
This would work even better if your hoses have JIC female swivel ends.
JIC female swivel hose ends are the most common hydraulic hose fittings in North America. JIC connections seal on an internal cone, and are held together with a straight mechanical thread, which does not suffer from thread deformation the way the pipe threads do.
JIC female hose fittings are always swivels, so installation is a breeze. Because JIC hose fittings are so popular, there is almost no end to adapter combinations available: JIC x NPTF, JIC x ORB, JIC x Metric, and so on. JIC adapters come in many varieties, including tees and elbows, and more sizes as well.
Now, if only you could get your farm store to stock hoses with female JIC fittings.
JIC female swivel hose ends are the most common hydraulic hose fittings in North America. JIC connections seal on an internal cone, and are held together with a straight mechanical thread, which does not suffer from thread deformation the way the pipe threads do.
JIC female hose fittings are always swivels, so installation is a breeze. Because JIC hose fittings are so popular, there is almost no end to adapter combinations available: JIC x NPTF, JIC x ORB, JIC x Metric, and so on. JIC adapters come in many varieties, including tees and elbows, and more sizes as well.
Now, if only you could get your farm store to stock hoses with female JIC fittings.
wdchyd
Elite Member
I'm with you Ken (DHH)......JIC fills the need best and adapts to anything
I don't like pipe threads but I have to cater to all replacements...:confused2:....especially don't like pipe swivels (the ones with the oring internally in the hose end)
I don't like pipe threads but I have to cater to all replacements...:confused2:....especially don't like pipe swivels (the ones with the oring internally in the hose end)
wdchyd,
I have used the adapters with pipe threads (with thread tape) many years and never had a problem. The pipe threaded ends on "farm store" hose (and the hose) using the adapters has held up better than original.
I have used the adapters with pipe threads (with thread tape) many years and never had a problem. The pipe threaded ends on "farm store" hose (and the hose) using the adapters has held up better than original.
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wdchyd
Elite Member
I'm glad you like them Economy......I use them on occasion cuz I have to but don't like them....... understand that pipe threads being an interference thread was originally designed to be used only once for plumbing piping and not reused.......Pipe threads were developed long before high-pressure hydraulics was around
Ever notice the more times you reuse pipe threads they don't seal anymore?
You can use whatever you want, for the record I will never use thread tape on any hydraulic system ........Just my opinion...
Ever notice the more times you reuse pipe threads they don't seal anymore?
You can use whatever you want, for the record I will never use thread tape on any hydraulic system ........Just my opinion...
LD1
Epic Contributor
Yep, dont use tape on hydraulics. Best to use a sealer/dope.
AS for the NPT threads. If it were mine and I were going to use farm store replacement hoses that were NPT, I would adapt whatever the hose goes to, to a NPSM swivel fitting. That way, once you are adapted, when you have to change a hose, its just like a JIC, only the "swivel" part will stay with the cylinder.
AS for the NPT threads. If it were mine and I were going to use farm store replacement hoses that were NPT, I would adapt whatever the hose goes to, to a NPSM swivel fitting. That way, once you are adapted, when you have to change a hose, its just like a JIC, only the "swivel" part will stay with the cylinder.
wdchyd
Elite Member
Those work well
LD1
Epic Contributor
Yep. Just as good as a JIC.
IMO, there are WAY too many types of fittings and threads out there that make it very difficult to match stuff up.
TOO many of them tube-type compression fittings "look" like a JIC fitting, but are just a tad different size and finer thread. So when sorting through a box of misc parts, its a PITA.
GeneralSnafu
New member
I need to replace some hose on this L-3130 Kubota. Can someone tell me how this coupling comes apart?
On my M series Kubota, the connection you show is 3/8 inch, right hand, national pipe thread (3/8 inch NPT). I believe the hose end in your picture is a solid connection, so you will need to remove the other end of the hose first. I found a replacement at a farm supply store.