Need help with a pipe fitting

[Slednut]

My hose reel came with a lead in hose with a 3/8 fitting on it. I need an adapter so I can connect it to this 1/2 inch pipe. Will this work?

https://www.amazon.com/dp/B013RXHLV2/?tag=atomicindus08-20

 

[Justind97]

Go to a big box building store and ask them for an adaptor. They should have them.

 

[The Cobbler]

is that 1/4 pipe thread swivel on the end of the air hose ? (that's what I'm thinking it is) in which case you need a 1/4 male pipe thread .

 

[Slednut]

is that 1/4 pipe thread swivel on the end of the air hose ? (that's what I'm thinking it is) in which case you need a 1/4 male pipe thread .

Here are the two ends of the lead in hose screwed together. On the left is a 1/4" fitting, on the right is 1/2".

 

[The Cobbler]

OK, so you're probably correct on the 3/8" then

 

[matt_i]

That looks like an inverted flare which would need a flared tube + tube nut captured behind it.

Not compatible with the NPT black pipe system.

 

[Git]

That looks like an inverted flare which would need a flared tube + tube nut captured behind it.

Not compatible with the NPT black pipe system.

That's what I was thinking also

Post a link to the hose reel, it should have the spec for the female fitting

 

[Git]

I *think* you need an adapter like in the pic

google something like this to find the right size for what you need

1/2" Inverted Flare Male to 1/4" NPT Female Adapter Fitting

 

[LS6 Tommy]

That looks like an inverted flare which would need a flared tube + tube nut captured behind it.

Not compatible with the NPT black pipe system.

That's what I was thinking also

Post a link to the hose reel, it should have the spec for the female fitting

X3 on the inverted flare.

Tommy

 

[Slednut]

I *think* you need an adapter like in the pic

google something like this to find the right size for what you need

I'm thinking I need 3/8 Inverted Flare Male to 1/2 NPT.

The specs for the reel say it's a 3/8in. FNTP inlet.

 

[rlitman]

X3 on the inverted flare.



Tommy

+4 here. My local Ace hardware had brass inverted flare to NPT adapters for $5ish.

 

[Slednut]

+4 here. My local Ace hardware had brass inverted flare to NPT adapters for $5ish.

I went to Ace twice, the guy that orders the stuff told me they don't carry it. I went back to look myself later in the day and couldn't find what I needed.

The wife's going to a town tomorrow that has an HD. Hopefully they will have it. I don't care if the 1/2 inch NPT is male or female.

Thanks for trying to help.

 

[rlitman]

I’ve never seen inverted flare at HD. You could try a good auto parts store (brake and transmission cooler lines use these). If you know of a place that makes hydraulic hoses, they’d have what you need.

 

[Slednut]

I went to the local NAPA and they do make hydraulic lines but they also couldn't help me.

When I was at the ACE hardware I did pick up a 6 inch piece of brass pipe that I knew would mate up with the reels lead in hose. I thought I maybe able to cut one end off and put NPT threads on it.

Although I knew the treads wouldn't match the 1/2" NPT I put a lot of teflon tape on one end of the brass pipe and screwed an adapter onto it as far as it would go without ruining the pipe. I was lucky and it doesn't leak at 150 PSI.

Thanks again for trying to help.

 

[The Cobbler]

if it does become a problem, you can always cut that fitting off & replace it
I've had airline fittings that have the same look and they are pipe thread. I think the idea is the ball seals not the threads as normal in pipe thread. many pipe short ******* ive seen for air have a heavy inside chamfer on them , made of brass. I suspect that is to create an easier seal on that type of fitting

 

[Bretny]

Where did you find a hose reel that has an inverted flare on it? Thats prety odd for that type of tool

Your sure its not normal pipe thread with a flare inside to seal up the swivel collar?

 

[Wrench97]

Is the hose reel for some type of gas rather then air?

 

[fitter30]

Tractor, farm store or hydraulic hose store might have what you need.

 

[cherrybomb]

Try The Parker Fitting Store.

 

[Slednut]

Here's the hose reel.

https://www.northerntool.com/shop/tools/product_200752284_200752284

What I did this morning is working fine, I'm going to call Northern Tool Monday but I don't think I'll get any answers from them.

 

[metlmunchr]

The thread is likely identified incorrectly on Northern's site as there's no such thread as a FNTP. A female swivel pipe thread as shown in the OP's pic is most always a NPSM thread which is National Pipe Straight Mechanical.

A NPSM thread will screw onto a male NPT thread, but the seal is made against a 30* chamfer that's cut on the ID of the male pipe. This is a common connection on hydraulic equipment.

A typical example would be the connection between a hydraulic cylinder port and a hydraulic hose. The cylinder would be tapped female NPT. Then, if the swivel nut is to be on the cylinder, an NPT x NPSM hose adapter fitting would be screwed into the cylinder port. The mating hose fitting would be male NPT with the chamfer cut on the ID of the hose fitting. Pic of the adapter at https://www.grainger.com/product/EATON-AEROQUIP-Male-NPT-to-Female-NPSM-Swivel-2F375

Alternatively, if the swivel nut is on the hose, then an NPT x NPT hose adapter would be in the cylinder port. This fitting looks like a short hex ****** but it also has the mating hex chamfer cut on its ID. Pic at https://www.grainger.com/product/EATON-AEROQUIP-Male-NPT-to-Male-NPT-Hex-******-2F455

The OP's application needs to connect to a male NPT with the internal chamfer to seal as designed. A fitting like this one https://www.grainger.com/product/EATON-AEROQUIP-MNPT-to-FNPT-Reducer-Pipe-38YN19 would have the internal chamfer on the male end and would also reduce from 1/2 to 3/8 pipe. I've found it simpler in cases like this to use a short hydraulic hose with male pipe ends for the connection rather than hard piping to the hose reel as hard piping all the way is difficult to accomplish without ending up with a strain on the connection at the reel.

FWIW, the male threads on hydraulic adapters will seal in a standard tapered female pipe thread as well as sealing against the seat in a NPSM swivel fitting. IOW, the only thing special about them, as compared to a standard hex ******, is the chamfer on the ID. The same is true for NPT hydraulic hose end fittings. I used links to Grainger for illustration only, and would recommend purchasing actual fittings from hydraulic suppliers such as Parker as the people in a hydraulics store will be much more knowledgable than the blank stare you usually get at Grainger if you ask for a product by anything other than the specific part number.