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RE: MIG welder minimum gas pressure

To: "'John T. Blair'" <>,
Subject: RE: MIG welder minimum gas pressure
From: (Gano, Ken)
Date: Fri, 13 Sep 1996 22:57:28 -0500
Having grown up in a welding supply business, there are arguments to be =
made for returning the cylinder with a positive pressure.  (Prevent burn =
back into the cylinder w/ flammable gases,  keep the general supply at =
the dealer pure), but the practical answer is your out when your out.

P.  S.  Co2 may be $17.00, but argon or an argon co2 mix was more than =
that ten years ago.
Try some exotic stuff (argon - helium mix per example) and the costs go =
sky high.

central Illinois

From:  John T. Blair[]
Sent:  Friday, September 13, 1996 3:47 PM
To:  Peter Schauss x 2014;
Subject:  Re: MIG welder minimum gas pressure

At 12:03 PM 9/13/96 -0400, Peter Schauss x 2014 wrote:

>What is the minimum gas pressure (input to the regulator) for a=20
>MIG welder (in my case the Lincoln WeldPack 100)?  I need to know
>how soon I am going to have to refill my tank.


  I don't know what the min. pressure is, but I have run my Lincoln
SP100 with less than 50# indicated on the guage.  The thing to remember
here, is that the lower the pressure the sooner you'll
run out of gas.  Around here the welding supply houses aren't open
on Sat.  So if I'm down to 200# and expect to do any welding over
the weekend, I run out Fri. afternoon and get a replacement bottle.

What the heck.  It's only about $17 for the gas.

John T. Blair  WA4OHZ          email:
Va. Beach, Va                  Phone:  (757) 495-8229

48 TR1800    48 #4 Midget  65 Morgan 4/4 Series V
     75 Bricklin SV1   77 Spitfire

The one with the most toys, wins!

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