On Sat, 08 May 2010 10:16:01 -0400, Joseph Gwinn
wrote:

In article ,
"fran...123" wrote:


[snip]
... Apparently (read somewhere) brass
isn't good for manifolding acetylene tanks copper or iron or steel. I have
only seen one acetylene manifold at a factory and each tank had a device in
it's attachment tube and then there was a larger device perhaps the size of
two volley balls one on top of the other nearby.

No. Pure copper and acetylene are explosive together. One must use brass. I
forget the required composition. Some serious research is required before
cobbing up one's own manifolds for acetylene.

Or buy the proper fittings from Western.
http://www.westernenterprises.com/en...dcontents.html

Two tanks can be tee'd together with a Female-Male-Female tee and a
Male-Male pigtail, and perhaps an extension if your tanks are the type
with POL fittings and a ring around the top. This isn't a true
manifold, since you can't leave both tanks open at the same time, but
it does allow you to keep two tanks connected and choose the fuller
tank when drawing a lot of gas and quickly switch to the other when
you don't need high flow.

Besides the flow vs. tank size issue, even a large tank won't deliver
enough gas for a rosebud when the tank pressure is low. The above
setup allows you to conveniently use the remainder in a bottle for
cutting and small tips.

--
Ned Simmons