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Subject: Re: Advise on PP blending
Date: Mon, 14 Jun 1999 19:26:34 -0400
From: Jim Cobb <cobber@ci*.co*>
To: <techdive@ea*.ne*>
cc: "Tech Diver" <techdiver@aquanaut.com>
It was the same way at the shipyard. I get a kick out of these folks who 
treat O2 like it was nitroglycerin or something.

 Jim

Sender: John Walker  Date: 6/13/99 3:43 AM

>Hi Mat,
>
>   Curious as to how UNEDUCATED contruction workers get away with it on
>their oxy-acetelyne tourches.  Often a iron workers cutting tourch hoses
>are in excess of 50'.
>   Its always amazed me as to how construction workers keep getting away
>with the abuse they put on their oxygen systems,throwing cylinders off
>trucks right into the dirt, install the dirty regulator and dirty hoses,
>smack it with a wrech and their off!
>   I grew up in the oil fields and you would'nt believe what their
>oxy-acetylene equipment lay in there.  Oily dirt.
>   Don't get me wrong.  I'm not trying to justify slacking in our own
>standards in diving.  I just thinks its ironic to look at.
>
>
>    John
>
>Mat Bloedorn wrote:
>> 
>> I assume the needle valve will be on the mixing panel.
>> and the cylinders 30 ft away.  If this is the case it
>> is in your best interest to turn the valves on the O2
>> cylender on verrrrrryyyyyyy  slowwwwwwly.  Since the
>> needle valve is closed you effectively have a long
>> hose with a dead end at the mixing panel when the O2
>> cylinders are first turned on.  This could create a
>> problem area especially if the O2 cyliners are turned
>> on quickly when the line is depressurised.  Perfect
>> scenario for that adiatbatic thingy to take place.
>> 
>> Mat.
>--
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