To tape or not to tape

[benevolus2]

I just received my new two stage propane regulator and twin pigtail(Camco) hoses with the inverted male flares.

The instructions say that Teflon tape is not necessary because of the flared fitting. Looking up online, propane companies also say no tape on flared fittings, only NPT ones.

Then I see some people saying you should tape the threads with yellow Teflon.

What the opinion on this issue?
Thanks.

[drsteve]

No tape, no sealer, no anti-seize. Just the proper amount of torque.

[Charlie_D_]

Wouldn't hurt to use a tiny bit of anti-seize on the threads.

[benevolus2]

Almot wrote:
People saying to tape flared, don't understand how flared fitting works. Like Cloud Dancer said, tape or sealant would make things worse.

I didn't understand either till I learned here. Never noticed that little seal on the female side! So only on tapered or straight threads.

[Almot]

People saying to tape flared, don't understand how flared fitting works. Like Cloud Dancer said, tape or sealant would make things worse.

[benevolus2]

Well, the verdict is in : no tape. Thanks to all for your answers and expertise.

[delwhjr]

beemerphile1 wrote:
Flared fittings do not get tape, or sealant of any sort.

X2

[Cloud_Dancer]

To use tape on flare fittings would be akin to wrapping o-rings with teflon tape before installing. IMO it would spoil the seal.

[time2roll]

The pigtails have flare fittings, no tape.
The main hose to the RV is NPT, yes tape.

So do you use tape on a regulator? Yes and No.

[CT_WANDERER]

no tape on flare fittings, it is the flare joints that are the sealing joints. If I was going to use tape on a flare fitting I would use the white tape on the threaded part, only to keep it from bonding to the mated tread joint. However make sure it is not leaking when you are done.

[ScottG]

No tape on flares.

[beemerphile1]

Flared fittings do not get tape, or sealant of any sort.

[Wild_Card]

no tape on flared fittings. the thread is not the seal and you could hinder the seal of the flare.

[jplante4]

If you do, yellow teflon is for gas

[Cobra21]

Don't use the tape, not for flared fittings. Do make sure you soap test once installed.
Brian