medical-grade versus welding-grade oxygen tanks with ozone generators

[Guest guest]

Most medical-grade ozone generating systems come with

medical-grade oxygen tanks.

Medical-grade oxygen tanks are expensive,

and don't hold very much oxygen.

Since we are using welding-grade oxygen with our systems,

why not use welding-grade oxygen tanks?

I understand that if someone is selling ozone services then

they'd want the medical-grade tanks because they look nicer.

I purchased my ozone generating systems with medical-grade tanks

because they were package deals (used systems).

If I were buying a new system and had the option then

I would be strongly tempted to buy a welding-grade tank.

Here is some info:

NOTE:

MG = medical-grade

WG = welding-grade

prices are in Canadian dollars and are approximate

prices do not include any taxes

taxes are 15% on tank and revalving, 7% on refill

price of a tank includes it being filled when you buy it

___________________________Tank__Refill__Revalving

MG 240 Liter ~= 8 foot^3 $320 $15 $35

MG 640 Liter ~= 20 foot^3 $370 $19 $35

WG 50 foot^3 $165 $21 $35

WG 80 foot^3 $215 $29 $35

Oxygen-tank-filling businesses won't refill a tank

that has a value that is more than 5 years old.

In other words, oxygen tanks have to be revalved every 5 years.

When I consider the cost of refills, and revalving,

and the cost of a tank, and the weight/size of the tanks,

instead of revalving my 640 liter tank,

I'll probably buy the WG 50 foot^3 tank.

(This is assuming that I'm using enough oxygen

to justify the the larger tank.)

Welding supply places can make you a 'transfilling adaptor',

for about $20 CDN+taxes, that lets you move oxygen between tanks.

This isn't the safest procedure, but is one of reducing the cost

of refilling a smaller tank, if you have a larger tank on hand.

[Guest guest]

Dear fred,

1) Medical grade 650 ml aluminum tanks are $175 CAD + shipping

from me.

2) Welding tanks are steel and will rust. External rust is

not a big problem, except if you get it on your carpet, but

internal rust will contaminate the oxygen. This can be avoided

by using an inline filter.

3) Medical grade aluminum tanks are available in all sizes.

We used to bring in 1750 liter ones, about waist high. But

they have the same drawback as steel tanks : they are HEAVY.

4) We have never had to revalve a tank for age problems. They

are just tested and recertified. Only a damaged valve requires

replacement.

5) Transfilling of oxygen tanks by untrained personnel is a

VERY DANGEROUS PROCEDURE. Do not do this. Welding shop

personnel become apoplectic when you tell them you want to

transfill without proper training. Looks simple. So does bomb defusing

(just clip the right wire....).

6) If filling tanks constantly is not your idea of a good time,

good quality oxygen concentrators are available for $800 US.

They are small, quiet and reliable. And then no one will know

you have an ozone generator.

Merry Christmas!

Best of Health!

Dr. Saul Pressman, DCh, LTOH

---------------------------------------------------------

Reply-To: oxyplus

To: oxyplus

Subject: medical-grade versus welding-grade oxygen tanks with

ozone generators

Date: Fri, 21 Dec 2001 17:54:56 -0000

Most medical-grade ozone generating systems come with

medical-grade oxygen tanks.

Medical-grade oxygen tanks are expensive,

and don't hold very much oxygen.

Since we are using welding-grade oxygen with our systems,

why not use welding-grade oxygen tanks?

I understand that if someone is selling ozone services then

they'd want the medical-grade tanks because they look nicer.

I purchased my ozone generating systems with medical-grade tanks

because they were package deals (used systems).

If I were buying a new system and had the option then

I would be strongly tempted to buy a welding-grade tank.

Here is some info:

NOTE:

MG = medical-grade

WG = welding-grade

prices are in Canadian dollars and are approximate

prices do not include any taxes

taxes are 15% on tank and revalving, 7% on refill

price of a tank includes it being filled when you buy it

___________________________Tank__Refill__Revalving

MG 240 Liter ~= 8 foot^3 $320 $15 $35

MG 640 Liter ~= 20 foot^3 $370 $19 $35

WG 50 foot^3 $165 $21 $35

WG 80 foot^3 $215 $29 $35

Oxygen-tank-filling businesses won't refill a tank

that has a valve that is more than 5 years old.

In other words, oxygen tanks have to be revalved every 5 years.

When I consider the cost of refills, and revalving,

and the cost of a tank, and the weight/size of the tanks,

instead of revalving my 640 liter tank,

I'll probably buy the WG 50 foot^3 tank.

(This is assuming that I'm using enough oxygen

to justify the the larger tank.)

Welding supply places can make you a 'transfilling adaptor',

for about $20 CDN+taxes, that lets you move oxygen between tanks.

This isn't the safest procedure, but is one of reducing the cost

of refilling a smaller tank, if you have a larger tank on hand.

Best of Health!

Dr. Saul Pressman, DCh, LTOH

_________________________________________________________________

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[Guest guest]

" Saul Pressman " <spressman@h...> wrote:

> 1) Medical grade 650 ml aluminum tanks are $175 CAD + shipping

> from me.

" ml " ? I think you meant 650 liter, ~= 20 foot^3.

I got my >$300 prices by taking the US$ prices that

I found on various websites and converting to CDN$.

Does the $175 CDN tank have a green top,

and coatings on the inside and outside?

> 2) Welding tanks are steel and will rust. External rust is

> not a big problem, except if you get it on your carpet, but

> internal rust will contaminate the oxygen. This can be avoided

> by using an inline filter.

I didn't know that. Now I understand why some transfillers

have inline filters in them.

I should make myself an adaptor that includes an inline filter

so that I can use a welding-oxygen tank in an emergency.

How serious of an issue is this? Don't they refill

the O2-tanks from their tanks (that are made out of steel)?

> 4) We have never had to revalve a tank for age problems. They

> are just tested and recertified. Only a damaged valve requires

> replacement.

I think that the retesting/recertifying fee

is the same as the revalving fee ($35 CDN).

> 5) Transfilling of oxygen tanks by untrained personnel is a

> VERY DANGEROUS PROCEDURE. Do not do this. Welding shop

> personnel become apoplectic when you tell them you want to

> transfill without proper training.

Some of them get stressed. Others don't think twice about it,

just as long as they make the sale...

I had a long chat with one guy about transfilling,

and the rules/regulations/laws/fines related to it.

Under normal circumstances I don't see myself ever doing it.

> 6) If filling tanks constantly is not your idea of a good time,

> good quality oxygen concentrators are available for $800 US.

> They are small, quiet and reliable. And then no one will know

> you have an ozone generator.

I have to see if I use enough oxygen to justify the cost

of an O2-concentrator. I know that there are cheaper

refurbished units available from various places in the USA.

If I thought that I'd ever make lots of ozonated olive oil then

a O2-concentrator would make sense.

[Guest guest]

" Saul Pressman " <spressman@h...> wrote:

> An inline filter should be standard equipment, regardless of

> oxygen source. We now have this in our accessories kit as

> standard.

Does the inline filter that you sell go before or after

the flow regulator?

How much do you charge for your inline filter?