I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically.

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene is
stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one that
won't stand that high anyway. But the O2 just sticks up there way high, and
I don't like the leverage it has that way in sudden maneuver driving
situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene
is stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one
that won't stand that high anyway. But the O2 just sticks up there way
high, and I don't like the leverage it has that way in sudden maneuver
driving situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

They've been on there so long, the oxygen was hydroed in '96.

Did someone actually weld on the cylinders? Or are the cylinders mounted
on mounts which were "gorilla welded"?
Grant

I don't believe CO2 is in liquid form as usually delivered.

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

SteveB wrote:
I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene is
stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one that
won't stand that high anyway. But the O2 just sticks up there way high, and
I don't like the leverage it has that way in sudden maneuver driving
situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

Acetylene is not OK at a 45 according to what I've been told.

Did someone actually weld on the cylinders? Or are the cylinders mounted
on mounts which were "gorilla welded"?

Steve, sometimes cylinders in the larger sizes are much cheaper to refill
per cubic foot than in the smaller sizes. For example, I recently priced
getting a 125 cf cylinder refilled with C25. I was quoted $50. About three
weeks later, I priced getting a 251 cf cylinder refilled with C25 - $55.
For five bucks more I get double the gas.

Your oxygen cylinder is probably a 251 cf. The acetylene cylinder you can
look up from this table:

Welding Cylinder Data (capacity is in cubic feet @ 2100 psi)

Oxygen / Argon / Helium / Other High Pressure
Tank Designator Capacity Height Dia. (height w/o cap & valve)
K 251 51" 9"
S 156 46" 7 3/8" ;; always owner cylinders
M 125 47" 7"
Q 92 30" 7 1/8" ;; always owner cylinders
R 20 14" 5 1/4"

Acetylene
Tank Designator Capacity Height Dia.
#5 350 45" 12"
#4 150 38" 8"
#3 75 29" 7"

If you get a propane cylinder, I recommend a 100 pounder e.g.:

http://www.lowes.com/lowes/lkn?action=productDetail&productId=28370-7...

Grant

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene is
stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one that
won't stand that high anyway. But the O2 just sticks up there way high, and
I don't like the leverage it has that way in sudden maneuver driving
situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

Steve

On 20 Mar, 17:04, "SteveB" <pittmanpir...@henderson.com> wrote:
I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically.

Vertically mounted is bad enough for acetylene in a truck. You really
ought to leave it parked up and stable for a good while, so as to let
the acetone settle back down. I certainly wouldn't use anything other
than vertical, if it was regularly getting shaken around before use.

Propane is a liquid and you don't want the liquid to carry over into
the regulator either (although it's not such a problem as acetylene).
If you need to mount them horizontally (fork-lift truck), the
cylinders are specials with an internal "anti dip" tube to reach up
into the gas ullage space. These not only have to be mounted
horizontally, they always have one particular direction for "up".

On 20 Mar, 17:04, "SteveB" <pittmanpir...@henderson.com> wrote:
I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically.

Vertically mounted is bad enough for acetylene in a truck. You really
ought to leave it parked up and stable for a good while, so as to let
the acetone settle back down. I certainly wouldn't use anything other
than vertical, if it was regularly getting shaken around before use.

Propane is a liquid and you don't want the liquid to carry over into
the regulator either (although it's not such a problem as acetylene).
If you need to mount them horizontally (fork-lift truck), the
cylinders are specials with an internal "anti dip" tube to reach up
into the gas ullage space.

These not only have to be mounted
horizontally, they always have one particular direction for "up".

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene is
stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one that
won't stand that high anyway. But the O2 just sticks up there way high, and
I don't like the leverage it has that way in sudden maneuver driving
situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

Steve

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene
is
stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one
that
won't stand that high anyway. But the O2 just sticks up there way high,
and
I don't like the leverage it has that way in sudden maneuver driving
situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

Steve

SteveB wrote:

I guess my question is mostly about oxygen bottles. IIRC, propane,
acetylene and CO2 are all liquid inside the bottle and have to be mounted
vertically. OR, could they be mounted at a 45, particularly an acetylene?

My trailer has an O2 and an acetylene mounted vertically. They both were
mounted with plate that is about 3/4" thick, and came from some salvaged
use. They look like crap, and were gorilla welded on. But I don't like
their high profile. The O2 is a full sized tall tank, and the acetylene is
stubby, about waist high, but not the fat round one. If I stay with
propane, I'll use the shorter tanks anyway, or go with a stubby fat one that
won't stand that high anyway. But the O2 just sticks up there way high, and
I don't like the leverage it has that way in sudden maneuver driving
situations.

I believe that I could mount the O2 horizontally, and it wouldn't matter.
Is that correct? I don't use a CO2 on the rig, but down the line, who
knows. I do have an acetylene bottle there, but may go to propane. Would
the acetylene be okay mounted at a 45?

Steve

Operationally the O2 could be upside down and it wouldn't matter since
it's just gas in there. What you need to check is the DOT regs since
it's on a trailer and I believe that the DOT regs specify that gas
cylinders must be secured upright.