need good check valves - The Planted Tank Forum
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post #1 of 24 (permalink) Old 07-12-2012, 03:38 PM Thread Starter
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need good check valves

I broke my check valve on sunday when I was cleaning my tank, so in a hurry, I went up to petsmart and bought two plastic ones they had. I guess the pressure was too much and one of them split and sprayed water all over my corallife light timer and shorted it out.

I returned both check valves and they gave me a new timer. But now I need to know where to find good check valves.
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post #2 of 24 (permalink) Old 07-12-2012, 05:14 PM
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This one shouldn't break on you. http://greenleafaquariums.com/check-...eck-valve.html

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post #3 of 24 (permalink) Old 07-12-2012, 05:34 PM Thread Starter
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Ya, that's what I need but they are out of stock, do you think a supplier of some kind would have one locally
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post #4 of 24 (permalink) Old 07-12-2012, 05:44 PM
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I have no idea. It would depend on what kind of LFSs you have locally.

Have you emailed GLA to see when they'll be getting more in stock?

You wouldn't think this would be a difficult item to find, but I did a search on it, and all I could find were either the cheap plastic ones, a brass one from Rex Grigg (but I hear he's MIA and not shipping stuff), and some other one that's running $35.

Maybe put up a post in the WTB section? Someone might have one sitting around they wouldn't mind parting with.

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post #5 of 24 (permalink) Old 07-13-2012, 06:09 AM
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maknwar carries the brass Clippard inline check valves for $12 each. These work very well for our use. He also has very nice Swagelok check valves.

Quote:
Originally Posted by maknwar View Post
... Clippard check valve...$12
Swagelok SS-4C-1/3 inline check valve(w/inserts)...$35 ...
https://plantedtank.net/forums/showthread.php?t=148226

There may be other CO2 parts sellers that have them as well. I've used the Clippard inline check valves for years and I've never had a problem with them.
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post #6 of 24 (permalink) Old 07-13-2012, 06:29 AM
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Be warned, those cheapo brass check valves are hit and miss.
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post #7 of 24 (permalink) Old 07-13-2012, 07:03 AM
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Quote:
Originally Posted by xmas_one View Post
Be warned, those cheapo brass check valves are hit and miss.
You don't include Clippard's MCV-1AA brass check valves in this group do you?
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post #8 of 24 (permalink) Old 07-13-2012, 07:06 AM
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Not sure how much Maknwar has left as he is selling his stuff of and not doing Co2 as I recall from a post or two of his.

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post #9 of 24 (permalink) Old 07-13-2012, 07:08 AM
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Quote:
Originally Posted by clang View Post
You don't include Clippard's MCV-1AA brass check valves in this group do you?
I'm talking about those crappy Chinese chrome ones with the little arrow sticker.
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post #10 of 24 (permalink) Old 07-13-2012, 08:26 AM
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Quote:
Originally Posted by xmas_one View Post
I'm talking about those crappy Chinese chrome ones with the little arrow sticker.
That's the ones that came to mind when you mentioned the ones being hit or miss.

Quote:
Originally Posted by Aquaticfan
Not sure how much Maknwar has left as he is selling his stuff of and not doing CO2 as I recall from a post or two of his.
I'm not sure either, but he still has them listed as being for sale. It is supposed to be updated. It was last edited on 7/10. Below is what he posted on 7/11: https://plantedtank.net/forums/showpo...&postcount=143
Quote:
Originally Posted by maknwar View Post
PARTS/MISC
Brass Permaseal....$5
Paper washers....$0.10
Nylon washer.....$0.50

Chrome CGA 320 inet and nut....$18
Brass CGA 320 inlet and nut...$9
Brass CGA 320 inlet and but with integrated permaseal...$18

Clippard check valve...$12
Swagelok SS-4C-1/3 inline check valve(w/inserts)...$35

NEEDLE VALVES
Swagelok SS-21RF2 (1/8 NPT).....$35
Swagelok SS-SS2-A.....$50
Swagelok SS-22RS4.....$40
Swagelok SS-SS2-D.....$65
Swagelok SS-4MGD......$50
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post #11 of 24 (permalink) Old 07-13-2012, 08:37 AM
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Yep, thats all he has and when its gone he is done.

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post #12 of 24 (permalink) Old 07-13-2012, 08:51 AM
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I hate to see these guys go. They were doing a great job, but many people only wanted something cheap instead of paying a bit more for something good.
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post #13 of 24 (permalink) Old 07-13-2012, 12:20 PM
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post #14 of 24 (permalink) Old 07-13-2012, 02:05 PM
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I assume we're talking about check valves for pressurized CO2 systems; not check valves for air pumps, or valves on canister filter plumbing, or etc.

On my rig, I use a pair of McMaster's brass check valves.


http://www.mcmaster.com//#standard-brass-check-valves

They are about 10 bucks each and are basically a spring-loaded plunger with rubber sealing face. . . I've had fantastic results.

Last edited by proaudio55; 07-13-2012 at 02:19 PM. Reason: typo
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post #15 of 24 (permalink) Old 07-13-2012, 03:03 PM Thread Starter
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Yes we are talking about co2 check valves. On my cerges reactor I have one at the reactor (the one that broke) and one between bubble counter and needle valve.

On the mcmaster valves which part number are you using?
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