Welding gas ripoff

[orezok]

I took my 80CF C25 bottle for a refill at Praxair. After I left I noticed that there was a sticker stating 69CF and the invoice said 70CF.

I guess Praxair can't get 80 CF in an 80CF bottle any more!

 

[monckywrench]

Was it filled to the proper psi? If so, it was properly filled.

 

[orezok]

Was it filled to the proper psi? If so, it was properly filled.

Good question. It indicated 2350 on the gauge. Don't know what pressure is normal.

 

[crazyal]

The local dealer I use just swaps cylinders out. You pay a flat fee so there's nothing on the invoice to tell you how much you got. It's common practice to leave about 300 psi in a tank to avoid any air/ moisture getting into it. However I usually push it until empty because I'm in the middle of a project trying to finish.

Propane tanks for BBQ grills have a limiter built into them so you can no longer drain them empty. But some of the national companies like Amerigas are not filling the tanks up all the way. As far as I know that's only being done with propane.

 

[tmeadows]

I think that is a proper fill for that cylinder

 

[yelbike]

Just purely a guess. I wonder if it was 69 to fill, in other words, the tank wasn't quite empty.

 

[k0ua]

Good question. It indicated 2350 on the gauge. Don't know what pressure is normal.

That is a full tank

James K0UA

 

[toxicjeeper]

I am guessing that was full.. My brand new to me 150 cf tank only read 2000PSI when i got it from praxaire..

 

[Ken45101]

Propane tanks for BBQ grills have a limiter built into them so you can no longer drain them empty. But some of the national companies like Amerigas are not filling the tanks up all the way. As far as I know that's only being done with propane.

Yes, in general barbeque propane tank "swap out" is rip off any more. They only fill them 75% (16 lb) "to save you money"

Ken

 

[J_J]

I believe temp plays a role in the capacity of the bottle.

The pressure in a gas cylinder rises in direct proportion to its temperature


http://www.praxair.com/praxair.nsf/...ad00fdd293bf7e2c85257100005bba50!OpenDocument

 

[Mickey_Fx]

Yes, in general barbeque propane tank "swap out" is rip off any more. They only fill them 75% (16 lb) "to save you money"

Ken

Ya need to be paying attention. For more than a decade now there has been a fed regulation requiring these bottles to be fitted with a OPD (overfill prevention devise) that limits tanks from being filled more than 80% capacity. You can not legally fill a bottle that doesn't have one of these valves. This applies to ALL DOT regulated bottles.

Tanks can be filled no more than 80% and that is the max you will pay for. No one is ripping off anyone.

Propane Tank OPD Valves

read bottom 2 paragraphs.

 

[orezok]

Ya need to be paying attention. For more than a decade now there has been a fed regulation requiring these bottles to be fitted with a OPD (overfill prevention devise) that limits tanks from being filled more than 80% capacity. You can not legally fill a bottle that doesn't have one of these valves. This applies to ALL DOT regulated bottles.

Tanks can be filled no more than 80% and that is the max you will pay for. No one is ripping off anyone.

Propane Tank OPD Valves

read bottom 2 paragraphs.

I think what he is saying is that a full bottle at 80% contains 20# of propane. They are only filling them to 16#, therefore the 75% fill of what the bottle SHOULD hold. OPD has nothing to do with this.

 

[J_J]

Some of you need to check further on the subject.

Bottles equipped with OPD valves are still to be filled by weight as required by law.

Propane OPD - Overfill Prevention Device Cylinder Valves

 

[monckywrench]

It indicated 2350 on the gauge. Don't know what pressure is normal.

That's in typical range. I'd have no problem accepting that pressure (and I've handled hundreds of cylinders when I ran a toolroom).