[TheForge] converting to natural gas

[Bob Willman]

	I have 12psi gas pressure in my shop. I don't know if it is possible
in all areas, but I asked the gas company and they asked me what pressure I
wanted. When I told them 15psi they said no problem. I had to buy the
non-standard meter and all regulators downstream are also my responsibility.
At the time I was considering a natural gas / oxygen torch set-up and Smith
Torch Company told me I could cut up to 1.5" with that pressure level. Some
day I will ask the gas company why my guage indicates 12psi instead of
15psi. 


Bob Willman
Bowling Green, Ohio
The Eagle's Anvil
WB8NQW

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of terry l. ridder
Sent: Saturday, May 16, 2009 4:11 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] converting to natural gas

hello mike;

that was my thought also. 12 psig natural gas is unheard in these parts of
northern illinois.

On Sat, 16 May 2009, CGRAF wrote:

>
>
> 12psi???
>
> Mike Graf
>
>
> Kevin Gallagher wrote:
>> I have been running a propane forge based on Ron Reil's sidearm 
>> burner for several years now and it does a great job.  However, I 
>> just moved into a new shop which has a natural gas line in it.  
>> Switching from bottle propane to shop gas would be very convenient 
>> but I have some questions and concerns.  I usually run the burners on 
>> propane at 5psi, the natural gas at the shop is 12psi.  I know 
>> natural gas burns cooler than propane but given the increase in psi, 
>> do I need to increase the orifice in the burner?  (Currently it is a 
>> .035 mig tip.)  Most importantly, will a naturally aspirated burner 
>> ever get hot enough on natural gas at 12psi to forge weld?  If so, 
>> how do I need to modify my burners?  Thanks
>>
>>
>>
>> Kevin
>>

--
terry l. ridder ><>
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