my oxy-acet kit has a regulator that i think may have a fault.... on turning
on the gas, the regulator winds round till it hits the stop....if i turn on
the nozzle it falls back to the pressure its been set at. is this a fault?
can it be repaired?

Steve

"r.p.mcmurphy" wrote in message
...
my oxy-acet kit has a regulator that i think may have a fault.... on
turning on the gas, the regulator winds round till it hits the stop....if
i turn on the nozzle it falls back to the pressure its been set at. is
this a fault? can it be repaired?

Steve


I always slacken the regulator fully off on shutdown, when starting I open
the bottle, and torch tap, then turn up the regulator to the right sort of
pressure.

it sounds like your reg. is defunct, they are dismantleable, but for the
danger aspect I have to recommend getting a new one.

mrcheerful

"mrcheerful ." wrote in message
k...

"r.p.mcmurphy" wrote in
message
...
my oxy-acet kit has a regulator that i think may have a fault....
on
turning on the gas, the regulator winds round till it hits the
stop....if
i turn on the nozzle it falls back to the pressure its been set
at. is
this a fault? can it be repaired?

Steve


I always slacken the regulator fully off on shutdown, when starting
I open
the bottle, and torch tap, then turn up the regulator to the right
sort of
pressure.

This is good practice as it lessens the risk of ignition (on opening
the cylinder valve) of polymers/lubricants/contaminants within the
regulator from either particle impacts or from (temperatures
generated by) adiabatic compression of oxygen inside the regulator.
Hydrocarbon greases lubricants must not be used in a high pressure
oxygen system.


it sounds like your reg. is defunct, they are dismantleable, but
for the
danger aspect I have to recommend getting a new one.

In particular seals and especially any lubricants must be of the
oxygen compatible variety (which usually means fluorocarbon based
compounds). And the regulator will need to be precision cleaned to
the appropriate standard.

It is not common but oxygen regulator fires have and do occur.

Jim