Rex assembles a regulator...... 56k warning.... - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 02-17-2006, 01:32 AM Thread Starter
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Rex assembles a regulator...... 56k warning....

Ok, this has been asked for and here it is.

I built a regulator today and even managed to remember to take some pictures.

So here we go.



Here is the regulator out of the box.



Here is the regulator with the beer line fitting removed.



A picture of the 1/4" to 1/8" adapter ready to be installed. Note the pipe dope on the threads.



Adapter installed.



A 1/8" hex nipple installed to give us room for the solenoid.



Solenoid installed



Low Pressure regulator and needle valve installed.
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post #2 of 14 (permalink) Old 02-17-2006, 02:35 AM
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how much does something like that run?


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post #3 of 14 (permalink) Old 02-17-2006, 02:37 AM
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Rex, how much would this cost unassembled, W/out shipping??
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post #4 of 14 (permalink) Old 02-17-2006, 03:50 AM
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Hi rex, is a low pressure regulator required ? what are the benefits of using one ? im planning to use only a high pressure regulator then straight to the needle valve I currently use.

Btw rex,when I visited the gauge place where I got the solenoid from, seems like solenoids have PSI ratings too? standard is 150 PSI I think ? Thats why im thinking of placing the solenoid after the needle valve where the pressure will enver exceed 150.... im thinking that in the event of a regualator failure it might release the entire 3000+ psi of the co2 straight to the solenoid.
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post #5 of 14 (permalink) Old 02-17-2006, 04:21 AM
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Kenneth,
CO2 won't exceed about 900psi. And unless you are totally careless, your regulator should only be set to about 20psi (+/- depending on your setup).

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post #6 of 14 (permalink) Old 02-17-2006, 04:23 AM Thread Starter
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The low pressure regulator is not required. What it does is give you extremely fine control over the bubble rate and help prevent end of tank dump.
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post #7 of 14 (permalink) Old 02-17-2006, 12:07 PM
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Quote:
Originally Posted by Rex Grigg
Note the pipe dope on the threads.
What exactly is this stuff, and where can I find it?

-Ernie


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post #8 of 14 (permalink) Old 02-17-2006, 12:27 PM Thread Starter
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At any hardware or plumbing store. It's either pipe dope or joint compound. Make sure you don't get the stuff that hardens when it sets.
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post #9 of 14 (permalink) Old 02-17-2006, 01:24 PM
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Nice pictorial. Thanks, Rex!

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post #10 of 14 (permalink) Old 02-17-2006, 01:56 PM
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Awesome! Too bad you didn't post this a few weeks ago. This should be a sticky.
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post #11 of 14 (permalink) Old 02-17-2006, 02:48 PM
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Rex,
How do you know what the LP Regulator is set for?

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post #12 of 14 (permalink) Old 02-18-2006, 12:36 AM Thread Starter
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Quote:
Originally Posted by turbomkt
Rex,
How do you know what the LP Regulator is set for?
You don't. You can bottom it out and then count the turns till it stops. That will tell you how many turns. On the model I use they are 30 PSI so if you had say six turns you could say that each turn is 5 psi.
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post #13 of 14 (permalink) Old 03-31-2006, 07:45 PM
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About to do the same thing...

How much torque you apply on the brass to regulator adapter and how much on the solenoid??

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post #14 of 14 (permalink) Old 03-31-2006, 11:54 PM Thread Starter
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When ever you are working with NPT (National Pipe Thread) metal to metal connections you must use an appropriate sealant either Teflon tape or pipe dope.

Since we are working with compressed gas and small orifices the use of Teflon tape is contraindicated.

And you always tighten the joint as much as possible. NPT is a tapered thread. Unless you get it tight it will leak.

Price of the solenoid

www.rexgrigg.com/sale.html
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