Should I use teflon tape? - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 01-03-2011, 04:23 PM Thread Starter
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Should I use teflon tape?

I finally recieved my on/off valve, PSI gauge and needle valve in the mail for my DIY paintball "regulator". I just have one question before puting it all together.

Should I use that yellow gas rated teflon tape on the threads or just put it together? How were these disigned to be assembled?

Should I tape the threads where the gauge and needle valve screw in? And should I tape the threads of the bottle where the on/off valve goes on?

I'm assuming tape the gauge and needle valve threads then tighten them down and just put a new o-ring on top of the bottle and call it good?

Or is there some sort of sealant or something that I'm missing?
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post #2 of 9 (permalink) Old 01-03-2011, 04:31 PM
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Teflon is never a bad idea where threads are concerned. Always wrap it so that screwing the fitting together will tighten the tape down, rather than trying to unravel it. The yellow stuff is just thicker, so white stuff will do fine. 3-4 wraps should do it, and more is better than less.
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post #3 of 9 (permalink) Old 01-03-2011, 04:34 PM Thread Starter
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Quote:
Originally Posted by kevmo911 View Post
The yellow stuff is just thicker, so white stuff will do fine. 3-4 wraps should do it, and more is better than less.
Oh, I thought the yellow stuff was made from something dirrerent because the CO2 would disolve the white kind over time.
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post #4 of 9 (permalink) Old 01-03-2011, 04:36 PM
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Quote:
Originally Posted by mmelnick View Post
Oh, I thought the yellow stuff was made from something dirrerent because the CO2 would disolve the white kind over time.
It's possible. I know the yellow stuff is designed for gas, but I've read that the only difference is thickness. I could be wrong.
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post #5 of 9 (permalink) Old 01-03-2011, 04:39 PM Thread Starter
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I found my answer here:

Quote:
WHITE-Single density- should only be used on NPT threads up to 3/8 inch.
YELLOW- Double Density- yellow double density is often labeled as "Gas type"
RED-Triple Density: (Note-the container is red but the tape itself appears as a pale pink color). Presently required on all joints " diameter or greater.
GREEN- Oil Free PTFE tape- Required for use on all lines conveying oxygen (I.E. –medical oxygen or welding oxygen lines).
COPPER COLOR- contains granules of copper and is to be used as a thread lubricant but is not approved as a thread sealant. (Generally it is used as a thread lubricant on bolts or pipe threads for mechanical applications where no physical seal is required.)
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post #6 of 9 (permalink) Old 01-03-2011, 05:31 PM
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I personally use pipe compound, as pieces of teflon tape can occasionally become lodged within a solenoid (if you plan to use one), preventing it from closing properly.

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post #7 of 9 (permalink) Old 01-03-2011, 05:36 PM Thread Starter
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Quote:
Originally Posted by Darkblade48 View Post
I personally use pipe compound, as pieces of teflon tape can occasionally become lodged within a solenoid (if you plan to use one), preventing it from closing properly.

Nope, before I'd spend the money on a solenoid I'd jsut get a real CO2 tank.
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post #8 of 9 (permalink) Old 01-03-2011, 06:04 PM
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Quote:
Originally Posted by mmelnick View Post
Nope, before I'd spend the money on a solenoid I'd jsut get a real CO2 tank.
That statement doesn't seem to match up with darkblade's comments. he is talking about a REAL system. You can't use a solenoid on DIY co2...

He is referring to pieces of teflon tape getting dislodged and clogging the reg or solenoid. Though if you put the tape on properly this shouldn't even be possible.

Even in your DIY paintball setup, you can still clog the needle valve and such.
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post #9 of 9 (permalink) Old 01-08-2011, 02:21 PM
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You also need to wrap the tape in the right direction.
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