Cristolube on the dip tube

[mainedvr]

Just bought an new doubles set up and have to put the dip tubes on. I looked under the manufactures manual and it does not say either way (to lube or not to lube) during assembly. I don't think its needed as they are like materials but just wanted to make sure that there is not an issue with it either way.

Thanks

 

[divad]

Do you want to lube them so they'll fall out sooner?

 

[mainedvr]

Do you want to lube them so they'll fall out sooner?

Not really I just tend to ask when I am not sure so that I get it right the first time. So I take it your answer is No?

Thanks for your time

 

[redacted]

Lube could help with removal; but why would you ever want to remove a dip tube?

 

[divad]

Yes, my answer is no, but, there must be other answers. This is the problem with asking for the answers to questions. I did, re your question, take a dip-valve out of a Thermo valve and noticed that the the threads on the dip-tube are chromed and the Thermo female threads are brass ie not chromed. So it seems there's no reason to lube the threads, and every reason not to.

 

[CuzzA]

Or just don't install the dip tube so when it falls out your tanks aren't ringing like a bell. If you've allowed water in your tanks where you would have a need for a dip tube I think you've got bigger problems.

Edit for a little perspective. The dip tube was patented in 1964. Basically the wrong solution to fixing a problem. Either careless fill station operators or perhaps crappy fill stations, compressors and/or filters or simply ignorance.

Nevertheless, there should be no reason you have water in your tanks. Unless your tanks are being filled by questionable sources, in which case I'd be much more worried about the gas, not a little water.

US3148965.pdf

 

[BRT]

Or just don't install the dip tube so when it falls out your tanks aren't ringing like a bell. If you've allowed water in your tanks where you would have a need for a dip tube I think you've got bigger problems.

Edit for a little perspective. The dip tube was patented in 1964. Basically the wrong solution to fixing a problem. Either careless fill station operators or perhaps crappy fill stations, compressors and/or filters or simply ignorance.

Nevertheless, there should be no reason you have water in your tanks. Unless your tanks are being filled by questionable sources, in which case I'd be much more worried about the gas, not a little water.

US3148965.pdf
View attachment 383818

I believe leaving out the tube is a bad plan. A little water wouldn't be bad but a little rust will clog up the airflow. The dip tube may stop that from happening when you go valve down to look at something.

 

[mainedvr]

I believe leaving out the tube is a bad plan. A little water wouldn't be bad but a little rust will clog up the airflow. The dip tube may stop that from happening when you go valve down to look at something.

I plan on using it just did not see in the manufacture literature weather to lube the threads or not. Thanks for all the repsonses.

 

[Doby45]

I have never lubed the threads on a dip tube that I have installed. No real need. I install the tube hand tight and then pull the allen key in the center of the tube and do a simple yet very scientific wrist "flick" and that is more than tight enough. It is not a part you install and remove and install and remove.

 

[The Chairman]

I don't lube them. There is no O-ring there.