Co2 Regulator leak - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 03-13-2016, 08:32 PM Thread Starter
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Co2 Regulator leak

I recently ordered a regulator from co2art but I am having a problem. Where the CGA 320 bolts to the back of the regulator is seems to be leaking. I am able to unscrew the adapter by hand but cant seem to tighten it enough to get it to stop leaking. It bolts fine onto the cylinder but I only can spin it so much to try to tighten the other side. Am I missing something?
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post #2 of 12 (permalink) Old 03-14-2016, 12:10 AM
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using a nylon washer? or buy a perma seal if your regulator has threading

Last edited by Fiftymeatballs; 03-14-2016 at 12:13 AM. Reason: add
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post #3 of 12 (permalink) Old 03-14-2016, 12:15 AM
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Yeah as the other poster indicated, make sure you have a plastic washer in there. If not and you don't have the permaseal there is no way to make it leak free.

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post #4 of 12 (permalink) Old 03-14-2016, 12:16 AM
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Sorry I just realized I may have read your post wrong. You have a leak where the cga320 valve stem connects to the regulator? or you are not able to make a proper seal onto the tank?
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post #5 of 12 (permalink) Old 03-14-2016, 12:19 AM
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dumb Q but do perma seals need replacing?

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post #6 of 12 (permalink) Old 03-14-2016, 12:41 AM Thread Starter
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Quote:
Originally Posted by Fiftymeatballs View Post
Sorry I just realized I may have read your post wrong. You have a leak where the cga320 valve stem connects to the regulator? or you are not able to make a proper seal onto the tank?
Yeah. Its make a proper seal to the tank but it leaks where the value stem connects to the regulator. I am able to unscrew it from that side


Bump: It came with a washer for for the side that connects to the tank

Last edited by Nelsontreyjones; 03-14-2016 at 12:51 AM. Reason: Add
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post #7 of 12 (permalink) Old 03-14-2016, 01:08 AM
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That seems very odd to me, it should have come sealed tightly. I'm surprised you can unscrew it by hand.

I looked up the regulator on their site, you need to use an allen key to tighten it but you will need to use a sealant tape or adhesive to make sure you don't get any leaks. Look up threads on this site for regulator builds.

Honestly, call the company and make sure this is normal and just make sure you use the proper type of sealant. Chemical reactions that occur under high pressure can cause explosions. Sorry not trying to fear monger lol but little on this website discusses the dangers of C02 tanks.
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post #8 of 12 (permalink) Old 03-14-2016, 01:44 AM Thread Starter
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Quote:
Originally Posted by Fiftymeatballs View Post
That seems very odd to me, it should have come sealed tightly. I'm surprised you can unscrew it by hand.

I looked up the regulator on their site, you need to use an allen key to tighten it but you will need to use a sealant tape or adhesive to make sure you don't get any leaks. Look up threads on this site for regulator builds.

Honestly, call the company and make sure this is normal and just make sure you use the proper type of sealant. Chemical reactions that occur under high pressure can cause explosions. Sorry not trying to fear monger lol but little on this website discusses the dangers of C02 tanks.
Thanks, now that I look at it I do see where I can use an Allen key. I contacted the company. I just hate to have to go through the process of a return and wait since they are located in the UK.
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post #9 of 12 (permalink) Old 03-14-2016, 10:28 PM
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Wow...you unscrewed the cga320 nipple by hand? You must be Hercules or that regulator seriously lacks QA. You won't see that shabby workmaship even with the cheap Aquateks or Milwakees.
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post #10 of 12 (permalink) Old 03-15-2016, 01:40 AM
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wrap some teflon around the cga320 thread.


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post #11 of 12 (permalink) Old 03-15-2016, 08:09 PM
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wrap some teflon around the cga320 thread.
Agreed. Wrap teflon tape around all bare thread into and out of the regulator to prevent leaks. 3-4 layers will be fine.

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post #12 of 12 (permalink) Old 03-17-2016, 04:00 PM Thread Starter
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So I contacted the company and they are sending me a replacement stem and nut after striping they hex bolt on this one. But apparently there was an o ring missing here which caused it not to seal. Click image for larger version

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