[TheForge] WHICH Harris torch for propane?

Wed Jul 17 19:01:58 EDT 2013

Hi Paul:
Excellent link...Thanks!
I like those old Airco, 2 stage regs too and have a couple in my rebuild pile.

On Jul 17, 2013, at 3:22 PM, Paul Sperbeck wrote:

I don't want to get in the middle of the merits of one torch over
another, but as far as parts go, these folks are tops.

http://sealseat.com/pdf/HARRIS.pdf
see page 34 for you Model 29 regulator.

I have purchased parts from them for over 5 years, although nothing in
the last few, and they have been very helpful.
I have rebuilt mostly Airco 2 stage regulators and flowmeters, gold
standard stuff. The best part is they are often available at flea
markets and car swap meets for not much cash because they are not made
anymore. But you can still get parts from SealSeat

As a total aside, whether a regulator is a demand type or pressure
regulated it still must pass around 180 cfh to equal 450,000 BTU/H which
equates to around 3 CFM from the regulator... it's kind of up to the
mixing chamber design to deal with it. The Midstates seems to have a
venturi that pulls the fuel in. Apart from anything else it would seem
that the fuel would balance the oxy flow in the Midstates design, at
least within the ability of the tip to turn down to a lower output
without melting or flashing back.

paul

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On 07/17/2013 04:44 PM, Peter Fels & Phoebe Palmer wrote:
> Jerry:
> I just ran across this link for a rebuild kit, Using a "Clusty" search ( Goog and Bing were useless).
> http://compare.ebay.com/like/140864830551?_lwgsi=y&ltyp=AllFixedPriceItemTypes&var=sbar
> that covers both model 25 and 29 Harris propane regs.
> That infers that the seat and diaphragm size are the same in both regs for rebuilding....
> and therefore, possibly interchangeable in gas flow
> 
> Does anyone have a preferred, reliable, low cost, online, Harris component supplier?
> 
> On Jul 17, 2013, at 11:48 AM, Jerry Frost wrote:
> 
> Thanks Clyde. After having Allstates repair one of my regulators I'd rather not do business with them anymore if I can help it. the attitude was just too "take it or leave" it for my taste. Lyle and I got along great but maybe that was because I sold a lot of torch sets for them. Oh well I'm glad to have the info to replace components when these wear out.
> 
> How's the Paleometallurgy in the McMillen swamp going?
> 
> Jer
> 
> 
> On 7/17/2013 5:54 AM, Clyde Wynia wrote:
>> Here is a copy of the email I got from Harris marketing guy, kingsley.
>> Number 7 in the list of regulators should be the right one.
>> 
>> Clyde,
>> 
>> I hope all is well. I do apologize for the delayed reply to you. I have been
>> traveling quite a bit since I saw you.
>> 
>> Here a summary of the Genuine Harris items they you are using.
>> 1.	Torch Handle. Model 18-5. part # 1011820. Catalog pg. #13.
>> 2.	Cutting Attachement. Model 49-3F. Part #1300440. Catalog pg. #8.
>> 3.	Cutting Tips are 6290-NX (std. pre-heat) or NFF (heavy pre-heat)
>> series. Various sizes. Catalog pg. #24.
>> 4.	Gaugeless Regulator - Oxygen. Model 29-100-540. Part # 3600340. All
>> Model 29's on Catalog pg. #44.
>> 5.	Gaugeless Regulator - Fuel Gas (Adjustable - 1-15 psi). Model
>> 29-15-510. Part # 3600260.
>> 6.	Gaugeless Regulator - Fuel Gas (Adjustable - 1-50 psi). Model
>> 29-50-510. Part # 3600320.
>> 7.	Gaugeless Regulator - Fuel Gas ("Allstate" Preset delivery - Approx.
>> 1 psi). Model 29-1C-510. Part # 3600325(?). Note - This item is not in our
>> general Equipment Catalog. I need to confirm the part number and
>> availability.
>> 
>> I have attached pdf files of the individual pages for your viewing pleasure.
>> 
>> 1.	
>> 
<<big snip>>

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