PST LP120's

[JahJahwarrior]

I wonder if testing facilities would stamp them for 2400psi service and call it a day if it's sticky for them?

The tanks in question here are already stamped 2400

You guys are confusing the issue. The EXEMPTION that is expiring only affects EXEMPTION cylinders. 3AA steel cylinders are not manufactured under an exemption, but are manufactured under 3AA guidelines.

Hydro facilities should continue hydro testing 3AA cylinders from all companies, including tanks such as Norris steel 72s, or PST 3AA tanks. With a proper hydro test and visual, dive shops should continue filling 3AA cylinders from all companies.

You should discuss the merits of exemption tanks and the possibilities and legalities surrounding them in the thread on the exemption expiring, and not confuse a person with tanks that the exemption does not apply to.

 

[berk]

Perhaps we are saying the same thing. How to get people to treat your exemption(high pressure) tanks as the standard 3AA. If that was the case LP 104 and 120 wouldn't be as sweet as they seem to be going forward since the E series would be useful to all people. The value of the LP is somewhat contingent on what end up happening to the E series. (and how many PST cult members there are)

And yes his tanks are good to go as LP. The value is benchmarked against the total supply of PST tanks and I would think his tanks are attractive. I apologize for the bizarre hijack and rant.

-matt

 

[PfcAJ]

Are these for sale or somethin?

 

[Jimmer]

I wonder if testing facilities would stamp them for 2400psi service and call it a day if it's sticky for them?

Can't happen. An exemption series tank is a different beast than a 3AA. Higher allowable stresses in the metal, different metal, different heat treat. I'm pretty sure a hydro tester would be breaking the law if they re-classified a tank.

 

[nielsent]

Okay, obviously this thread went off in its own direction there, but allow me to clarify the situation.

I do have a set of PST LP120's, they are monsters, I love them to death, and for all "cowboy up" comments out there, I have been diving them as doubles for about a year now. However, I recently discovered that the tanks are useless to me because I live in Canada and they are not Transport Canada (TC) stamped, they are only DOT 3AA stamped, and they are born after Dec 31st 1992, so they do not have an exemption in Canada. I live where there is a small dive community and Canada has some slightly different laws when it comes to transport and use of tanks by recreational users, so as much as I love my tanks, they are gonna have to go.

I was asking about demand because I cannot honestly (personal scruples here) sell these tanks to anyone in Canada knowing that they are not supposed to be hydro'd or filled in the country, but don't want to be out a set of tanks, so i was kinda looking on the board to see if there is a US demand for them. At the moment I was kinda thinking that if there was a demand i would be willing to trade them for a comparable set that are TC stamped.

Again however, I currently was just curious more than anything...

-- nielsent

P.S. the tanks in my avatar picture are the tanks in question.

 

[Jimmer]

They are fine, any hydro shop that tells you they are useless is a complete and total moron. Before 1993, Canada followed the DOT specs, so as long as they have DOT stamped on them, they are 100% legal in Canada. There are tens of thousands of old 3AA steel 72's in use in Canada (I have 4 in current hydro, and the youngest one was born in 1973), not to mention the hundreds of thousands of old 3AA steel welding tanks in use, some of which are 100 years old.

Now having said all that, if you are still concerned, I will take them off your hands and dispose of them properly

 

[nielsent]

True, but these tanks are born in 1996, after the rulings on TC stamping were put into place. I contacted TC after getting into a discussion with a dive store manager, apparently the manager was right.

 

[05sportsman]

Perhaps we are saying the same thing. How to get people to treat your exemption(high pressure) tanks as the standard 3AA. If that was the case LP 104 and 120 wouldn't be as sweet as they seem to be going forward since the E series would be useful to all people. The value of the LP is somewhat contingent on what end up happening to the E series. (and how many PST cult members there are)

And yes his tanks are good to go as LP. The value is benchmarked against the total supply of PST tanks and I would think his tanks are attractive. I apologize for the bizarre hijack and rant.

-matt

That has got to be one of the dumbest things I have read on this forum. You can't expect an honest hydro operation to stamp a tank like it is something else. A little background information, E series tanks are a whole different ballgame than the 3AA tanks. Test procedures, processes, REE numbers, permanant expansion limits...it is all different. IF AN EXEMPTION EXPIRES THE TANK CAN NOT BE RE-CERTIFIED.....PERIOD!
The hydroshop dosen't have to condemn it but can't hydro it.

 

[berk]

Man, this seems like a big forum too.

No, I couldn't expect it from a Hydro test facility if that is the rule. It is an honest question however.

I own vehicles and trailers with DOT numbers where I have had their factory gross vehicle weight rating revised downward. The old rating is 14,000 pounds from the manufacturer and the new one is 10,000# on a trailer parked right in front of my office.

I also would be willing a buyer of LP-120s.

- matt