[TheForge] propane cylinder and tank safety ( was [OT] Pyro-boom )

Sun Jun 1 12:28:10 2003

Might I also point out its even more illegal to vent R-12 refrigerant to the
atmosphere, but people recommend making Freon forges?.......At least Propane
will oxidize and turn to various shorter chains as the UV light attacks it
and attaches Oxygen to it.  Freon of any type besides being toxic to humans,
goes right past go forgets to collect its 200.00 and burns up the ozone in
the atmosphere because UV light cannot break it down..................

Grumphh......

----- Original Message -----
From: "Paul Hewitt" <[email protected]>
To: <[email protected]>
Sent: Sunday, June 01, 2003 9:14 AM
Subject: Re: [TheForge] propane cylinder and tank safety ( was [OT]
Pyro-boom )

> I recycle them for a living, we vacuum pump the gas from the and run it
> through a condenser then back into storage tanks.  In all seriousness I
> doubt any one on this board is going to attempt to cut open a full
> tank.........
>
> Also since we all have gas forges why would we vent a tank to the
atmosphere
> when we can use it to run our forges till its empty?
>
> Paul
>
>
>
> ----- Original Message -----
> From: "terry l. ridder" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, June 01, 2003 8:16 AM
> Subject: [TheForge] propane cylinder and tank safety ( was [OT]
Pyro-boom )
>
>
> > hello;
> >
> > i feel that i need to jump in here concerning cutting propane cylinders
> > and tanks. several safety points and environmental protection agency
> > regulations need to be restated.
> >
> > 0. venting propane to the atmosphere is against epa regulations. if a
> > propane cylinder and or tank has propane in either gas or liquid it must
> > be burned off using a propane flare. ( think large weed burner on tripod
> > stand in a vertical position. ) the alternative is to pump the cylinder
> > or tank empty. the pumping tends to labor intensive so most propane
> > service companies burn it off.
> >
> > 1. if a cylinder or tank has a value which will not open ( the value has
> > failed closed ) the procedure to handle this depends on whether it is a
> > cylinder or tank.
> >     a cylinder:
> >         if at all possible the cylinder should be frozen using liquid
> > nitrogen. once the propane has solidified the value is removed and a new
> > value is installed. the cylinder is allowed to warmup naturally.
> >         if the cylinder cannot be frozen and if the failed value has the
> > screw vent, the screw vent should be opened to allow the cylinder to
> > vent at a slow rate. remember that propane is heavier than air and
> > collects in low areas. the venting should be reported to the proper
> > regulatory agency/agencies.
> >     a tank:
> >         if the tank has an emergency unloader value ( most do ). an
> > unloader adapter is attached allowing liquid propane to be withdrawn.
> > the unloader value allows for either pumping out to an alternate storage
> > facility or for the burning off of the propane. the propane flare in
> > this case has a vaporizer which allows the liquid propane to become
> > gaseous propane and burned off using the propane flare.
> >         if the tank has a belly value this is used in place of the
> > emergency unloader value ( which is normally located on top of the
> > tank.)
> >
> > i have worked with propane, propane cylinders and tanks for nearly 35+
> > years. propane, propane cylinders and tanks need to be respected and
> > proper safety precautions must be taken. remember the person injuried or
> > killed may be you. perhaps worst it may be someone else and you have to
> > live with the guilt of directly or indirectly causing or contributing to
> > their death. in which case you may be rightful sued for wrongful death
> > or negligence.
> >
> >
> > On Sun, 1 Jun 2003, Peter Fels And Phoebe Palmer wrote:
> >
> > peter>
> > peter> Paul;
> > peter> A while back we had a discussion about cutting open old propane
> tanks
> > peter> and several of us had fairly elaborate precautions we took first.

> > peter> Clearly you are the expert here...
> > peter> The text below infers that you just jerk the valves and plugs and
> cut
> > peter> them open straight off...is that right?........Pete
> > peter>
> >
> > Paul Hewitt wrote:
> > <snip>
> >
> > paul>
> > paul> We devalve about 500 to 1000 tanks a day, and typically then
> > paul> cut holes in them.  The guys with torches usually pride themselves
> on the
> > paul> tanks that become "jet engines"  when a tank sits open long enough
> they get
> > paul> a perfect mixture and then will burn inside the tanks emitting the
> hot
> > paul> exhaust gasses out the hole that's been cut.  After about a 2 to 3
> second
> > paul> interval they burn out, but do not explode the tank.
> > paul>
> >
> > <snip>
> >
> > --
> > Terry L. Ridder ><>
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