co2 refill liquid?gas?

[bluezing]

hi guys...read somewhere that some do refill by gas and some liquid.so which is which?from wat i noe liquid will be better.but how will we noe wat is refilled inside?besides the weight being the obvious sign.

and 2nd question,usual standard refill is $15.anyone knows where can get cheaper refill?[:]

[bclee]

Read from the pressure gauge. The pressure should be around 1000psi most of the time until the CO2 is about to run out.

BC

[tawauboy]

a properly refilled co2 tank should contain liquid and gaseous co2. weight is the only true indicator whether the tank is properly filled.

a tank filled with gaseous co2 will show 1000+psi fresh from refilling. however, the pressure will drop very soon (in terms of days to a few weeks, depending on your usage). a properly refilled tank should last you for months.

[bclee]

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On 9/8/2003 1:45:35 PM

a properly refilled co2 tank should contain liquid and gaseous co2. weight is the only true indicator whether the tank is properly filled.

a tank filled with gaseous co2 will show 1000+psi fresh from refilling. however, the pressure will drop very soon (in terms of days to a few weeks, depending on your usage). a properly refilled tank should last you for months.
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The pressure should stay 900-1000psi (depending on the ambient temperature) as long as there is liquid CO2 in the tank. This is the vapour pressure of liquid CO2. The pressure should be in this range up to months as long as there is liquid CO2 in the tank.

When the liquid is used up, the pressure will drop quite rapidly.

BC

[juggler]

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On 9/6/2003 9:31:24 PM

and 2nd question,usual standard refill is $15.anyone knows where can get cheaper refill?[:]
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Can try ChemGas. See address in LFS list. Call to check.

[stressed]

Whats Chemgas? Is it a Gas company or is it a LFS?

[bluezing]

sounds like a gas company.but i heard from bro badman can get same day refill at bioplast.$15 also.anyone refilled from there b4?[:]

[danny]

U only need to wait about 15min. Cost $15/- only. Service is good. Even check for leaks after attaching my regulator.

[bluezing]

coolz.guess im gonna go there for my refill next time.[]

but i wonder where they get their gas from?hmmm...

[limsteel]

Dudes... if my science knowledge is right then a gas will condense to a liquid (giving off heat) when the pressure is high enough. when release to the atmosphere of low pressure it absorb heat quickly and transform back into the original gaseous state.

So if CO2 is let out at a very high flowrate, water vapour in the atmostphere will condense and freeze at the outlet.

[Kingfisher]

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On 9/8/2003 7:33:10 PM

sounds like a gas company.but i heard from bro badman can get same day refill at bioplast.$15 also.anyone refilled from there b4?[:]
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May I know where Bioplast is located and how to get there?

[tltan]

hi, Bioplast is located opposite the Sikh temple along Boon Keng or Bendemmer road. can take train to Boon Keng MRT if u dont drive. It is beside the chinese restaurant known as BAN HENG if i am not wrong. happy going.

tltan

[cheeboonyong]

Try Sealico at AMK Industrial Park 3. Just behind Motorola. SHould be $10, same day service (not 15 mins, more like half a day)

[Gambit]

Hi Guys,

Need your advice please? When the solenoid is switched off, their shouldn't be bubbles coming out from the cyclinder? Or will it take some time?

Thanks

[danny]

Once it is shut off, you should not see any more bubbles coming out from the cyclinder. But if your reactor is not too efficient , it will take a while before all the Co2 is fully dissolved from the reactor.

[Kingfisher]

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On 9/30/2003 10:44:46 PM

hi, Bioplast is located opposite the Sikh temple along Boon Keng or Bendemmer road. can take train to Boon Keng MRT if u dont drive. It is beside the chinese restaurant known as BAN HENG if i am not wrong. happy going.

tltan

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Walking distant from MRT?

[Kingfisher]

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On 10/1/2003 9:22:43 AM

Try Sealico at AMK Industrial Park 3. Just behind Motorola. SHould be $10, same day service (not 15 mins, more like half a day)
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This seem to be much much nearer to my house.

BTW, how you all find out that it has this refilling service?

[tawauboy]

well, this topic on refilling co2 has been discussed to death. and will contimue to be discussed to death.[]

it is natural that when one has a co2 tank, one will try to lookout for a cheaper or more convenient place to refill co2. once anyone has found a better place, be it cheaper, better service, or ..., the person will post the 'new' location. and so it spreads...

[eric_kclee]

For those who has giant tank (5litre), why not try A&G, they do collection and delivery at your door step. $19. 4 dollars more than the regular $15, Rather than take public transport/taxi(if you don't have a direct bus, that will easily cost you more than $4), easily Save time and money.

[PeterGwee]

A & G Industrial Gas Trading Pte Ltd

Address : 20 Changi Sth St 1 Singapore 486778
Telephone : 6546 8363
Fax : 6449 1301
Email : [email protected]

Eric, is this the one you are referring to? Island wide collection?

Or is it this?

Tel : 64493166
Fax : 64491301
Address : Block 3007
Bedok Industrial Park E
#01-1564/#01-1566

Singapore 489973
Website : www.airngas.com
Email : [email protected]
Classification: Gas - Industrial.