Swivel Fittings

[Luke'sScreenName]

No, it was a joke on me. MB is a large New Hampshire tractor chain of questionable competency and horrible customer service (IMO).

 

[wdchyd]

Hey /pine,

You are absolutely correct in your reply about using the wrong pipe fittings without the 30 deg chamfer.......I have seen many jobs in the past come in where some other repairman used the wrong fittings (without the chamfer) and they will constantly loosen up, the only best fix is to replace the hose and the swivel fitting that gets damaged by the wrong hose fitting (damaged inside on the 30 deg seat of the swivel adapter)

Not sure on other brands of hose fittings but Gates swivel hose ends (MPX) are the only ones that don't have the 30 deg seat....all the regular Gates straight male pipe ends have the necessary taper

Will it work in a pinch?.....sure, but it ain't right and will damage the adapter the first time it gets cranked on

MB I was referring to is MB Tractor near Luke

 

[Steave]

No, it was a joke on me. MB is a large New Hampshire tractor chain of questionable competency and horrible customer service (IMO).

OK. I was thinking maybe Monkey Business or something. Might not have missed it too far. lol

 

[Luke'sScreenName]

So now I think I understand.

I thought ALL NPTM fittings had a VERY small bevel on the end. Like 1.5mm wide while the swivel NPTF has a bevel width of more like 5mm. I have never seen a NPTM fitting, sold for hydraulic applications, with threads that go all the way to the end. I was envisioning two wide mating surfaces like JIC. I apologize for the confusion.

I knew I should've kept my mouth shut.

 

[rswyan]

Hey /pine, You are absolutely correct in your reply about using the wrong pipe fittings without the 30 deg chamfer.......I have seen many jobs in the past come in where some other repairman used the wrong fittings (without the chamfer) and they will constantly loosen up, the only best fix is to replace the hose and the swivel fitting that gets damaged by the wrong hose fitting (damaged inside on the 30 deg seat of the swivel adapter) Not sure on other brands of hose fittings but Gates swivel hose ends (MPX) are the only ones that don't have the 30 deg seat....all the regular Gates straight male pipe ends have the necessary taper Will it work in a pinch?.....sure, but it ain't right and will damage the adapter the first time it gets cranked on MB I was referring to is MB Tractor near Luke

I've got a number of straight and 90 swivels lying around here that I destroyed before I knew better

 

[wdchyd]

NPTF MPX

Luke if you look close at the pix of a MPX you'll see there is no 30 deg chamfer inside the ID

 

[wdchyd]

NPTF MP

and here is the standard MP with the cone

 

[otlski]

Thanks for the help guys. Turns out that the hose fitting all have the small i.d. chamfer so looking good. I saw that Tractor Supply had them and went there tonight; they had only one in the store. I'll try NAPA in the morning. I'll post pix soon.

 

[Luke'sScreenName]

NPTF MPX

Luke if you look close at the pix of a MPX you'll see there is no 30 deg chamfer inside the ID

Weird. Why?

 

[/pine]

Thanks for the help guys. Turns out that the hose fitting all have the small i.d. chamfer so looking good. I saw that Tractor Supply had them and went there tonight; they had only one in the store. I'll try NAPA in the morning. I'll post pix soon.

If you wait a few days for delivery...The average cost of a swivel fitting (usually same quality) online is about $3.50+/- (depending on size and angle)...where I think they are about $12.00+ in the bubble wrap packages at a lot of retail ag stores etc...

Personally, I mostly see the non-chamfered straight pipe ends on fittings like reducing bushings etc...