Old acetelyne tank

[escavader]

Given to me .it feels full .wont hook up to my regulators.any adapter available?The oxygen tank he gave me works great.

 

[RNeumann]

A quick search on amazon for Acetylene bottle adapter showed several $25 and less. I don’t know enough about old bottles to know what those male threads are. Measure the size and tpi of the male threads and I’m sure their is something for you.

 

[blacklion66]

Any welding shop that has been in business for a few years should be able to answer your question. might even find a used adapter ☺

 

[Big Barn]

A quick search on amazon for Acetylene bottle adapter showed several $25 and less. I don’t know enough about old bottles to know what those male threads are. Measure the size and tpi of the male threads and I’m sure their is something for you.

^^^what RNeumann said.

Google CGA pressure fittings for fuels-acetylene.

Technically you won’t be looking for an adapter per se as you will be using an appropriate coupler nut or stem with inlet pipe threaded right into your regulator.

I have several. Most LWS staff aren’t totally knowledgeable in these items as acetylene tank bottle connections vary in different parts of the country. Not nearly uniform as one might think.



Left AND right hand thread -male or female tank stems , different sizes and thread pitches.

I guarantee you’ll know more than the average welding gas vendor when you’re done.

I found eBay to be the best to buy. Have fun

 

[kenmac]

never seen one like that in my area. Here, they would never refill that one

 

[Walkin Horse]

The adapter I have is marked CGA 520. The fitting should come either way. Replace what's on your gauge or adapt your male fitting to that male fitting. Remember left hand Flammable gas threads have a hash mark on the nut.

 

[sandman2234]

"Feels full" is kind of a misleading statement since those bottles are always full. The are full of a substance that looks similar to concrete and is very porus. The acetone and acetylene gas are suspended in that substance in the bottle. Therefore weighing the bottle without knowing what it weighs empty is kind of a wasted effort.
I also have not seen a bottle with that fitting, but all of my bottles are sourced from a single shop, which uses the same standard. I have a lot of spare parts for my type, but not yours.
David from jax

 

[Big Barn]

The adapter I have is marked CGA 520. The fitting should come either way. Replace what's on your gauge or adapt your male fitting to that male fitting. Remember left hand Flammable gas threads have a hash mark on the nut.

Until a year ago I thought ALL flammable gas threads were left hand. I suppose I’ve led a sheltered life on the farm.

 

[WranglerX]

First off what is size of acetylene tank.... Look on valve body to see if it has a "CGA XXX" number, that is first clue on what size bottle and what adapter you need....

THE two smallest tanks sized take diffident adapters.... Your tank looks bigger...

General Welding Supply Corp.-Industrial Cylinder Sizes

Look up CGA fitting/adapters on Western Enterprize site...

Cylinder Adaptors - Western Enterprises

Your regulator appears to be a CGA 510 fitting and if you are using a "B" (CGA 520) acetylene tank the proper adapter is Western Enterprises 317

IF a "MC" series tank... CGA 200.... You need a Western Enterprise 324...



Dale

 

[yomax4]

Other than right hand threaded B and MC fittngs there was also one called POL. I think that's what you may have here. In any event that is an old old cylinder. I'd check it close for rust weakness or take it in for a pro inspection. The Railroad had their own acetylene fittings as well. Simply called Rail Road. Even had their own rail road size fittings on the hoses.

 

[Big Barn]

Any welding shop that has been in business for a few years should be able to answer your question. might even find a used adapter

Both of the two LWS I deal with (not mom and poppers) couldn’t help me. Just depends on the staff/management.

Most likely a branch that does actual filling on site would be more knowledgeable.

 

[WranglerX]

Other than right hand threaded B and MC fittngs there was also one called POL. I think that's what you may have here. In any event that is an old old cylinder. I'd check it close for rust weakness or take it in for a pro inspection. The Railroad had their own acetylene fittings as well. Simply called Rail Road. Even had their own rail road size fittings on the hoses.

A POL is a CGA 510...And POL is a bastardization of "Put On Left" which original came out the 1880's when carriages and first motor cars used acetylene lamps for head lamps and it was "Prest-O-Lite"....

The CGA 510 (POL) is also same "connector" as on propane tanks (not acme screw thread ones)...

Dale

 

[yomax4]

A POL is a CGA 510...And POL is a bastardization of "Put On Left" which original came out the 1880's when carriages and first motor cars used acetylene lamps for head lamps and it was "Prest-O-Lite"....

The CGA 510 (POL) is also same "connector" as on propane tanks (not acme screw thread ones)...

Dale

Ok, There is another one then. Haven't had a Western or Superior book in my hands for years. Might have been "Commercial" CGA.

 

[Big Barn]

Just checked my stash. Here’s a CGA 510 Dale mentioned coupled to a CGA 520.

 

[Big Barn]

Ok, There is another one then. Haven't had a Western or Superior book in my hands for years. Might have been "Commercial" CGA.

I think there may be “military” gas tank fittings also?

 

[WranglerX]

On further research tank valve may be CGA 300....

CONCOA CGA Connection Reference Chart

Dale

 

[Big Barn]

On further research tank valve may be CGA 300....

Dale

You’re killing me Dale. Not going back to the shop ....

 

[Oldoak]

"Feels full" is kind of a misleading statement since those bottles are always full. The are full of a substance that looks similar to concrete and is very porus. The acetone and acetylene gas are suspended in that substance in the bottle. Therefore weighing the bottle without knowing what it weighs empty is kind of a wasted effort..............................................
David from jax

:thumbsup:

 

[Barry 1]

The company I used to deal with had that type of valve ,and I had to use a Forney 87799 CGA300 to CGA 510 adapter

 

[Jeepnford]

You might want to find out if you're going to able to swap this tank out for a full one or get it filled before you expend too much energy and money on it. It probably needs tested before another refill. I suppose if it's actually full it would be worth an adapter.