Co2 Regulator Schematic

are the gauges not already attached?

How many holes are there?

Are there any markings at all?

A picture would be extremely helpful.

HP is for high pressure, most likely you would connect your high pressure gauge there. The in is probably where you would connect your CGA 320 nipple that connects the regulator to the co2 cylinder. The other ports are probably low pressure, for the post body kit, emergency pressure release valve, and an extra outlet. It looks like there is a plug in the extra outlet.

So starting from the "in" port and going counter clockwise you will probably have the following:
-CGA nipple
-low pressure gauge
-high pressure gauge
-post body kit
-pressure release
-plugged extra port

Does that make sense for your regulator?

Thanks Jason, I'll tried your setup out and it appears to work!

Reviving an old thread here with a similar question. I just bought the same reg and was wondering what the hole on the back of the reg is for? In that last pic of the original posters pictures. The back chamber has a hole there as well with threads... ?

Thanks for everyone's help!


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So this is a 2 stage regulator . . . would that tap in back be for a gauge to monitor the first stage pressure drop? Without having the spec sheet on this reg, that is my hunch.

So what do I do with that port then... I assume that is something unneeded for our applications.


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Oh, and this guy has one:

http://www.plantedtank.net/forums/equipment/72328-victor-dual-stage-regulator-pimp-club-41.html

You could check to see if he is still around -- he might be able to answer your questions.

There shouldnt be anything in it but a plug. If your holding the regulator like the OP was in his picture. You should have (look at the 2nd pic. where his thumb is at) from right going left. The first hole would be CGA320, Then high side gauge, then Low side gauge, Then output. Then Plugged. Then to the back would also be plugged.

galabar said:

Here is a picture of one set up:

Parker/Veriflo shows porting diagrams, but I couldn't find them for Matheson/Trigas. I also couldn't find a spec for the 3104c (although I did see a 3200 series).

Click to expand...

So what is that fitting on the bottom in that picture? I have the same fitting in the same place... is that the pressure release or something? Do i just leave it as is? The output of the elbow of that piece is threaded.

Aquaticfan said:

There shouldnt be anything in it but a plug. If your holding the regulator like the OP was in his picture. You should have (look at the 2nd pic. where his thumb is at) from right going left. The first hole would be CGA320, Then high side gauge, then Low side gauge, Then output. Then Plugged. Then to the back would also be plugged.

Click to expand...

that order seems right.. there is just the one more port on the bottom that I mentioned above...

y84k said:

So what is that fitting on the bottom in that picture? I have the same fitting in the same place... is that the pressure release or something? Do i just leave it as is? The output of the elbow of that piece is threaded.




that order seems right.. there is just the one more port on the bottom that I mentioned above...

Click to expand...

The one more port is just like my Matheson. It should be plugged.