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RE: Converting dryer from propane to natural gas - 8/23/2011 9:50:46 AM   
Termyn8or


Posts: 18681
Joined: 11/12/2005
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It's not the pressure, it's the gas itself. You could lower the pressure of the propane all you want and it just won't work right with a nozzle that's too big. Period. Otherwise you could just turn a valve !

Also, you don't use teflon tape in that application.

T^T

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RE: Converting dryer from propane to natural gas - 8/23/2011 9:51:57 AM   
mnottertail


Posts: 60698
Joined: 11/3/2004
Status: offline 		I dont see why not use teflon tape. I use it all over, and it is equivalent to pipe dope, and I have had piss poor luck dry fitting the fucking things.

It dont harm nothing.

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RE: Converting dryer from propane to natural gas - 8/23/2011 9:55:58 AM   
MyVision


Posts: 102
Joined: 3/30/2011
Status: offline 		using of tape depends on what kind of thread is on the nozzle.
conical/conical or conical/straight or straight/straight

straight/straight needs a washer or teflon. The others will be gass tight because of it construction.
Will probably be G or Rp thread

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RE: Converting dryer from propane to natural gas - 8/23/2011 10:10:04 AM   
WinsomeDefiance


Posts: 6719
Joined: 8/7/2007
Status: offline 		How the hell am I supposed to know if my nozzle thread is straight?    Figures, if there's an orifice involved there's gotta be a sexual label attached to it. 

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RE: Converting dryer from propane to natural gas - 8/23/2011 10:11:33 AM   
mnottertail


Posts: 60698
Joined: 11/3/2004
Status: offline 		if it is convex or concave, it is not straight, that is the only choices.

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RE: Converting dryer from propane to natural gas - 8/23/2011 10:21:45 AM   
Termyn8or


Posts: 18681
Joined: 11/12/2005
Status: offline 		Actually I prefer pipe dope, but neither is indicated for the nozzle itself. I've seen taflon tape used on flange fittings ! Geez.

Pipe dope and/or teflon tape is indicated for pipe threads, which are tapered. The threads do not make the seal on a flange fitting. Mostly, the orifice is a type of flange fitting but without the free turning nut, it's just machined that way. Also even if it's not that type, if one or both of the pipe threads is brass, no dope or tape is needed, nor desirable.

T^T

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RE: Converting dryer from propane to natural gas - 8/23/2011 10:47:22 AM   
MyVision


Posts: 102
Joined: 3/30/2011
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quote:

the orifice is a type of flange

Yes could be, I just can talk about European systems.
We use thread/thread connections mostly for nozzles. Some even have locktite applied to them to assure a close connection.
The nozzle doesn't get warm because it is cooled constantly with the cold gas, so locktite can be used also.
Other costumers like copper or alu rings.

< Message edited by MyVision -- 8/23/2011 10:48:48 AM >

(in reply to Termyn8or)
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RE: Converting dryer from propane to natural gas - 8/23/2011 11:29:47 AM   
mnottertail


Posts: 60698
Joined: 11/3/2004
Status: offline 		if you use locktite and want to change it aint gonna happen, you are gonna wreck it coming out.

I think most orifices are flat end into internal thread straightpipe.

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RE: Converting dryer from propane to natural gas - 8/23/2011 1:03:06 PM   
MyVision


Posts: 102
Joined: 3/30/2011
Status: offline 		I didn't mean in this case to use locktite....lol
It sure wouldn't go open. Unless you use their liquid sealing. That is different from their famous glue.

You might be right. I can just talk about heating systems ( warm water and central heating). I have only been 1 one project of heaters for gasheated tumble dryers. They are not popular in Europe.

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RE: Converting dryer from propane to natural gas - 8/23/2011 2:52:59 PM   
areallivehuman


Posts: 277
Joined: 1/16/2010
Status: offline 		FR

Just pay the man to convert it and hook it up. If it was working ok before, it will be fine. Not much to go wrong in there, especially if it's just a few years old.

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RE: Converting dryer from propane to natural gas - 8/23/2011 3:29:15 PM   
hardcybermaster


Posts: 904
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Status: offline 		PTFE tape

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RE: Converting dryer from propane to natural gas - 8/23/2011 3:39:06 PM   
Termyn8or


Posts: 18681
Joined: 11/12/2005
Status: offline 		cybster, did you read ? Or do you not know that teflon is PTFE ?

T^T

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RE: Converting dryer from propane to natural gas - 8/23/2011 9:29:09 PM   
MercTech


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Joined: 7/4/2006
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quote:

ORIGINAL: WinsomeDefiance

Thanks for the replies!

I"m not planning on doing it myself.  I can operate a wrench, but I'd rather pay someone who has experience installing gas lines etc. 

I think I will just get a small bottle of propane an test it outside first.  I'm not sure if my property insurance will cover me, if I blow the house up by accident like that.





If you are paying for a service call to install the dryer to the gas lines, they may well include installing the conversion kit in the same labor charge.  It really isn't a big deal.

The most efficient fuel/air mixture is a bit different between natural gas and propane.  You use a different size nozzle jet and set the air intake on the burner differently.  If you get it wrong, you either get a sooty flame or a flame that doesn't want to stay lit.

I've never done a dryer but have done oven jet conversions several times.  With a dryer, it would just be more difficult to get inside and get to the jets I suppose.

Stefan

(in reply to WinsomeDefiance)
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RE: Converting dryer from propane to natural gas - 8/24/2011 10:15:39 AM   
mnottertail


Posts: 60698
Joined: 11/3/2004
Status: offline 		Oh, Jesus....we aint heard from her since yesterday, she done blowed her fool head off with the goddamn teflon tape when it reacted with the metal in the cresent wrench.

Shit, now we will never know which orifice worked better.

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RE: Converting dryer from propane to natural gas - 8/24/2011 10:24:50 AM   
kalikshama


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quote:

Shit, now we will never know which orifice worked better.



Nominated for QOD!

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RE: Converting dryer from propane to natural gas - 8/24/2011 12:38:34 PM   
ThundersCry


Posts: 892
Status: offline 		good job...

-L-

Suppose Loggins will sing at her funeral?

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RE: Converting dryer from propane to natural gas - 8/24/2011 3:31:00 PM   
WinsomeDefiance


Posts: 6719
Joined: 8/7/2007
Status: offline 		I'm alright!

The guy who is going to install the conversion kit can't do it for a few weeks, so y'all are stuck with me for a while yet. 



(in reply to ThundersCry)
Profile   Post #: 37
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