Am I connecting this hose correctly?

Should be OK. It's a flair fitting.

 

Flare fitting. No sealant needed. It seals on the bevels.

 

No sealant. Just tighten. Seals on the angle taper, not the threads.

 

What everyone else said. You don't need the teflon tape, just make sure it's clean

 

Seals on the tapered seat. I know it looks sketchy but that tapered seat seals really well. Hydraulics on some construction equipment use a similar style of metal to metal flare seal and they run pressures in excess of 3,000 PSI without leaking. The thread tape isn't needed. Only place you'll need that sealant is on NPT (pipe thread). Best example of NPT on a heavy truck would be the fittings that thread directly into a brake chamber.

 

They are correct it's a JIC fitting no tape. Now if you need to tape a NPT fitting there is a proper way. If put on the wrong direction it destroys the tape as your thread it together.



Or buy liquid thread sealer.

 

Never use thread tape where it isn't required. There's a reason they used the fitting they did. Depending on the application (eg., hydraulics, fuel), some small piece of thread tape can come off and block an orifice or create other problems.

 

They say when using the tape, don't wrap the first 2 threads to help prevent that. Some manufacturers recommend against using the tape for exactly the reason you stated. Finding those plugged orifices in a hydraulic system can be downright brutal. Especially if it floats around. I had about 14 hours into a manlift one time before I tracked down a floating piece of an o-ring. Dang thing circulated through almost the entire system before I caught it jammed into a check valve lol.

 

Yeah, I meant to include that too; that's the way I do it. Having built a lot of specialized equipment over the years, I know your pain.

A potential problem on a fitting like in the op is getting thread tape into the area where the sealing surfaces mate. It doesn't seem like much, but it can cause significant problems if it is being used at its 5,000 psi rating.