Tank valve dip tube spinning off

[TwoBitTxn]

I have had the tank valve dip tube spin off of one of my tanks twice now. It is the only tank I have had any problems with and it only happens when filled on one particular compressor. I don't know of anyone else who has had this problem with this compressor.

Ideas?

TwoBit

 

[dbg40]

strange, are you just spinning it on finger tight? I always give mine a little help with a pair of pliars, and have never had one spin out before.

 

[mwpowell]

Crank the sucker down with a pair of vice grips.

 

[Randy43068]

you can "scuff" the threads a little with a pair of pliers or vice grips. But don't over-do it. If the threads are bent over a little the pipe will hold in place better.

Or do what mwpowell said. Crank the bad boy down!

 

[ScubaDadMiami]

Use a locktite type formula on it.

 

[jonnythan]

I'm not sure if I'd want to mix Locktite in my breathing gas.

Is this something that's commonly done?

 

[redacted]

Stake it. Tighten the tube and then use a center punch to dimple the valve next to the dip tube.

 

[ScubaDadMiami]

I'm not sure if I'd want to mix Locktite in my breathing gas.

Is this something that's commonly done?

It's not a problem at all. I haven't been a reg tech in years, but manufacturers used to call for it on certain regulator part attachments. Even in O2 environments it is not a problem once it is dry.

 

[Randy43068]

I wouldn't use Locktite inside of the tank.

 

[Randy43068]

Hey ScubaDad, you may have a good point. Once that stuff is dry, it probably doesn't offgas. If I were going to use a compound I'd use the blue stuff if it's safe after it's dry.