Victor SGT500 stainless steel double stage CO2 regulator DIY, quick guide.

[Bettatail]

This is a quick guide for anyone wants to DIY a set of double stage co2 system.
The main components for this co2 system:
Rebranded ASA(victor SGT500) stainless steel double stage regulator, 40 psi max output
Peter Paul E52 series stainless steel solenoid, 4 watts
Swagelok M series metering valve, angle pattern with vernier handle.

DIY parts list:
1. CGA320 nipple and nut set(with washer), 1.5 inch nipple/stem, stainless steel.
2. Victor SGT500 stainless steel bar stock double stage regulator, 1/4 female npt ports.
3. 1/4 male npt to 1/8 male npt adapter, short form hex, stainless steel.
4. 1/8 female npt to 1/8 male npt, 45 degree elbow, stainless steel. Parker 2-2-SVE-SS, Brennan 5503-02-02-SS
5. Peter Paul E52 solenoid, wired conduit casing, stainless steel, 1/8 female npt inlet/outlet.
6. 1/8 male npt to 1/4 compression tube port elbow, Swagelok part number SS-400-2-2
7. Swagelok 1/4 OD port connector, part number SS-401-PC
8. Swagelok M series metering valve, part number SS-4MA-MH
9. Swagelok 1/4 OD tube stub to 1/8 male npt adapter, part number SS-4-TA-1-2
10. bubble counter.


--The grey teflon tape in video is high density type for stainless steel to stainless steel fitting/thread connections.

Questions, answers and discussion on how to build are all welcome.

happy aquascaping.

 

[Koan]

Awesome, thank you! A thing of beauty

And here is a link to @Bettatail s step-by-step leak test, to walk you through evaluating a used regulator before starting the build, and the seals on your fittings after!

(Also for those of us who suck with Teflon tape I have had excellent results using this Loctite 545 thread sealant





Not to be confused with red threadlocker Loctite makes a lot of products, 545 specifically is the high pressure sealant designed to fill up the threads. Instructions are on the package )

 

[Naturescapes_Rocco]

As a side note, @Bettatail makes amazing regulator packages of high-end, buy-it-for-life regulators for this hobby.

Both of my journal tanks utilize his regulators, and always will. Thanks @Bettatail!

 

[Bettatail]

a good condition Concoa 312 double stage regulator, not a stainless steel bar stock, but a hard chrome plated and stainless steel diaphragm, at this price it is a rare deal.

good luck.

CONCOA PRECISION GAS CONTROLS 3122331-01-580 | eBay

The item is used. F4 Hardware Functional. C4 Used Good. Non-data bearing unit. If you choose to pick up item locally. Local Pick-up. We will reply to you within 48 hours.

www.ebay.com

 

[Bettatail]

HOKE 1315G4Y Milli-Mite FINE Metering Valve | eBay

Used, the black plastic dial has a crack leading from the small hex screw keeping it tight on the internal rod (possibly from overtightening), but still functionally operates (turning it shows progressively exposed 0-4-8-12-16).

www.ebay.com

a hoke metering valve, the millimite 1300 series.

 

[Bettatail]

Victor regulator GPT 270D-250 custom co2 system, Victor GPT270D-250 | eBay

The Bettatail Victor GPT 270D-250 custom CO2 system is a high-quality CO2 regulator designed for fish tanks and aquariums. This system is compatible with all water types and provides precise regulation of CO2 levels to ensure optimal water quality for your aquatic animals. With the trusted...

www.ebay.com

read the description....
@Koan
I am dumbfounded, seller use stupid AI, somewhere fetch whatever from scapecrunch...

 

[JayP]

Victor regulator GPT 270D-250 custom co2 system, Victor GPT270D-250 | eBay

The Bettatail Victor GPT 270D-250 custom CO2 system is a high-quality CO2 regulator designed for fish tanks and aquariums. This system is compatible with all water types and provides precise regulation of CO2 levels to ensure optimal water quality for your aquatic animals. With the trusted...

www.ebay.com

read the description....
@Koan
I am dumbfounded, seller use stupid AI, somewhere fetch whatever from scapecrunch...

Looks like they have multiple listings for regulators with your name attached.

 

[Koan]

I am dumbfounded, seller use stupid AI, somewhere fetch whatever from scapecrunch...

You're right it probably is an AI bot generated listing, probably scraped your name from TPT

You should report each one of these as a false listing to eBay You should have standing to claim intellectually property infringement, if not a copyright infringement.

I reported this one, but it'll have more impact coming from you

 

[Bettatail]

Ebay watch..
there is a stainless steel dual stage regulator that Canadian scape tank hobbyists can grab.
I think the seller can accept offer as low as C$50, good luck.

Tescom 44-3462S24N558 Stainless Steel Gas Regulator | eBay

 

[Bettatail]

Found a good condition double stage regulator at low cost, good luck.

https://www.ebay.com/itm/336568032304

 

[JayP]

Found a good condition double stage regulator at low cost, good luck.

https://www.ebay.com/itm/336568032304

Sold!. Hopefully someone here got it.

 

[Bettatail]

Sold!. Hopefully someone here got it.

definitely one of the members or readers on scapecrunch,

whoever bought the listed Air products regulator, for your choice of industral/lab grade low flow, low power consumption solenoid, you can find the popular clippard miniature/mouse solenoid, and besides the clippard, here are two available good solenoids on ebay at the moment

1. ASCO/numatics 411 miniature solenoid, 100psi, 1.5watts (or 0.65 watts), 24V DC(or 12V DC), manifold mounted version, and get a Clippard 15490-5 manifold.
about $100 retail

https://www.ebay.com/itm/254005908342

2. Peter Paul stainless steel extreme service solenoid, 75psi, 4watts, 24V AC(use a 8V DC, 0.5mA power adapter or 24V AC, DO NOT USE A 24V DC POWER SUPPLY).
This is a rare 4watts version, not sure about the retail, but I think it is at least $250 or more a piece.

https://www.ebay.com/itm/124880952431

just found the pictures of a custom multi output post body built last year, I used three low cost Fabco NV55 needle valves because used/liquidated swagelok metering valves are getting really expensive, and chance to find three identical swagelok at affordable price is slim.

 

[Bettatail]

whoever bought the regulator and plan for a DIY, post your question here if you have any.

 

[JayP]

definitely one of the members or readers on scapecrunch,

whoever bought the listed Air products regulator, for your choice of industral/lab grade low flow, low power consumption solenoid, you can find the popular clippard miniature/mouse solenoid, and besides the clippard, here are two available good solenoids on ebay at the moment

1. ASCO/numatics 411 miniature solenoid, 100psi, 1.5watts (or 0.65 watts), 24V DC(or 12V DC), manifold mounted version, and get a Clippard 15490-5 manifold.
about $100 retail

https://www.ebay.com/itm/254005908342

2. Peter Paul stainless steel extreme service solenoid, 75psi, 4watts, 24V AC(use a 8V DC, 0.5mA power adapter or 24V AC, DO NOT USE A 24V DC POWER SUPPLY).
This is a rare 4watts version, not sure about the retail, but I think it is at least $250 or more a piece.

https://www.ebay.com/itm/124880952431

just found the pictures of a custom multi output post body built last year, I used three low cost Fabco NV55 needle valves because used/liquidated swagelok metering valves are getting really expensive, and chance to find three identical swagelok at affordable price is slim.

You're a precision regulator artist.