My 2 outputs co2 regulator - Page 2 - The Planted Tank Forum
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post #16 of 39 (permalink) Old 04-03-2014, 10:24 PM
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Quote:
Originally Posted by Bettatail View Post
The reg is Harris HP722, share the same chasis as one of the HPT/SGT model, to be exact, you can call it a HPT500.
The Harris HP742, is stainless steel, same as SGT

With that many major brands sharing the same chasis/design of the typical victor HPT500, I seriously doubt any of these regulators were made in the USA.
Probably JAPAN...
You learn something new everyday. Haha
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post #17 of 39 (permalink) Old 04-03-2014, 10:30 PM Thread Starter
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Originally Posted by Bettatail View Post
Alan, both of the Brooks on your system were made around the same time as flowerfishes'.
The one with "B 1" on top, took out from a plasma ethching machine, the other one was new in the package but has been in the package since 80s...
Old, but extremely high precision for sure.
BTW, the nupro 22 series that you showed the small needle stem(small orifice) in anothet thread, was from the 60s..
It is the Mass flow controller(thousands a piece) dominate the tech equipment market nowaday, high precision anolog flow valves are not popular(but very good for our application)
I was thinking of incorporating the mass controller to the co2 system just for the heck of it, but it is too big. By the way how did you know so well about the origin of my Brooks valves? LoL

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post #18 of 39 (permalink) Old 04-03-2014, 10:47 PM
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Quote:
Originally Posted by Bettatail View Post
The reg is Harris HP722, share the same chasis as one of the HPT/SGT model, to be exact, you can call it a HPT500.
The Harris HP742, is stainless steel, same as SGT

With that many major brands sharing the same chasis/design of the typical victor HPT500, I seriously doubt any of these regulators were made in the USA.
Probably JAPAN...

according the specs from the website. mine is all stainless steel. Do I get a SS hpt500?

VWR Regulator Model # 55850-684



https://us.vwr.com/store/catalog/pro...uct_id=4777316
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post #19 of 39 (permalink) Old 04-03-2014, 10:58 PM
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Originally Posted by oldpunk78 View Post
You learn something new everyday. Haha
The high quality regs, gauges, made in the 80s or early 90s, proudly marked "made in USA", but anything newer, the "made in USA" disappear....
The manufacture line probably support the similar regulators from different brands, and manufacture in other country to lower the cost, (probably Japan or S Korea), think about the auto industry...
I am sure the design and development are still in the US, that is something can't outsourcing for sure.
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post #20 of 39 (permalink) Old 04-03-2014, 11:02 PM
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Quote:
Originally Posted by flowerfishs View Post
according the specs from the website. mine is all stainless steel. Do I get a SS hpt500?

VWR Regulator Model # 55850-684



https://us.vwr.com/store/catalog/pro...uct_id=4777316
Because there is no match pdf for the small brand part number, we don't know it is SS or chrome plated.
Take a high resolution picture to show the body of the regulator, may be we can tell by its look.

Edit, Looking for .pdf ATM
Edit 2, it is stainless steel ! The Harris HP742 model, similar to victor SGT, nice find, I've been looking for a HP742 but never have the luck.

Last edited by Bettatail; 04-03-2014 at 11:20 PM. Reason: add
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post #21 of 39 (permalink) Old 04-03-2014, 11:14 PM Thread Starter
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Quote:
Originally Posted by Bettatail View Post
The high quality regs, gauges, made in the 80s or early 90s, proudly marked "made in USA", but anything newer, the "made in USA" disappear....
The manufacture line probably support the similar regulators from different brands, and manufacture in other country to lower the cost, (probably Japan or S Korea), think about the auto industry...
I am sure the design and development are still in the US, that is something can't outsourcing for sure.
Actually Japan has a very high standard for QC. I don't know about S. Korea. You remind me of Apple products. Designed in California, assembled in China. Sighssss....
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post #22 of 39 (permalink) Old 04-03-2014, 11:22 PM
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Originally Posted by AlanLe View Post
Actually Japan has a very high standard for QC. I don't know about S. Korea. You remind me of Apple products. Designed in California, assembled in China. Sighssss....
It is alright, think about an iphone, if all made in the US, people probably pay double to get it.
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post #23 of 39 (permalink) Old 04-03-2014, 11:27 PM
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Quote:
Originally Posted by Bettatail View Post
Because there is no match pdf for the small brand part number, we don't know it is SS or chrome plated.
Take a high resolution picture to show the body of the regulator, may be we can tell by its look.

Edit, Looking for .pdf ATM
Edit 2, it is stainless steel ! The Harris HP742 model, similar to victor SGT, nice find, I've been looking for a HP742 but never have the luck.

here is a picture of the back, when I get it. I post a picture on the "regulator watch" thread reagarding the relief valve, so I just get the picture from there to show again.

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post #24 of 39 (permalink) Old 04-04-2014, 12:13 AM
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Originally Posted by flowerfishs View Post
here is a picture of the back, when I get it. I post a picture on the "regulator watch" thread reagarding the relief valve, so I just get the picture from there to show again.

On the look out for a stainless steel solenoid and the SS CGA 320 to suit the status of this reg.
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post #25 of 39 (permalink) Old 04-04-2014, 04:48 AM Thread Starter
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The 5 pounds CO2 tank arrived. I'm using this tank mainly for test ling purpose.
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My daughter is learning how to build co2 systems. One day she will build nice systems like uncle Bettatail and Uncle Oldpunk:-)
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post #26 of 39 (permalink) Old 04-04-2014, 09:42 AM
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I finally figure out why I can't control the flow with this valve. look at the stem. OMG. It must be a high flow metering valve.


Last edited by flowerfishs; 04-04-2014 at 10:05 AM. Reason: info
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post #27 of 39 (permalink) Old 04-04-2014, 06:47 PM Thread Starter
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Quote:
Originally Posted by flowerfishs View Post
I finally figure out why I can't control the flow with this valve. look at the stem. OMG. It must be a high flow metering valve.

Bummer! I hope you didn't pay too much for it.

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post #28 of 39 (permalink) Old 04-04-2014, 06:58 PM
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Are these the same as the metering valves on this setup?

281226041189

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post #29 of 39 (permalink) Old 04-04-2014, 07:02 PM Thread Starter
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Originally Posted by jrman83 View Post
Are these the same as the metering valves on this setup?

281226041189
Yes! At $100, way too expensive. I would do $50 max. If money is not an issue, go for it.

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post #30 of 39 (permalink) Old 04-04-2014, 08:12 PM
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Quote:
Originally Posted by flowerfishs View Post
I finally figure out why I can't control the flow with this valve. look at the stem. OMG. It must be a high flow metering valve.

It is built different, so think different.
Not the small needle shape stem that make ths valve better than other. It is non rising stem design, can't judge its ability on flow control from the stem size.
Actually, it looks like 1-3 series model, same as alan's, check the pdf you will see the official stem diameter(orifice)
Can you please let me know how you adjust the bubble rate, and did you check leak and make sure it is leak free before you test the valve?
Attention to detail when you build, think outside of the box when looking for a solution.
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