Kitchen Gas Appliances - Replacing a Gas Range and Gas Dryer

Hye all,

I will be replacing my gas range and gas dryer in the next day or so, and I need some advice for the gas hook-up.

Do I use teflon tape or pipe dope on the threads of the gas hose on each side to ensure there is no leak?

Any advice would be greatly appreciated.

thanks
jg

You don't use anything when connecting a flex connector. It has a compression fitting which makes a gas tight seal when tightened.

Hey SP..wouldn't it be called a flare fitting? Not criticizing...just clarification of terminology...better for the OP, right?

Well, why am I hearing from all the forums that I should be using some sort of teflon tape or pipe dope on the threads.

I have this connection, minus the kit,

Product Information Error Page (http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&langId=-1&catalogId=10053&productId=100112627&N=10000003+90015+500700)

If its just the flex line itself..any dope or tape can CAUSE a leak, since the flared connections need to seat perfectly.

Now, the adapters shown in that kit require gas rated tape and/or pipe dope on the pipe thread, but not the tapered flare connection. Not positive, but it seems like most ranges will need an adapter installed upon install. I know the last gas heater I installed did, and it seems like my dryer did as well.

So, I just need pipe dope on the threads only? I believe that is what I was going to do, I just need to check as well

You shouldn't need anything on the threads of the flex line...the threads are not what create the seal, they just tighten the flared connections together. It would only be used on the tapered pipe threads of the adapters.

Yes, I have seen where people put a bit of dope on the flare fittings threads..but it shouldn't be needed. I've never done it....and I've seen it discouraged much more than recommended.

You need to understand..there are straight threads (like a nut/ bolt and there are tapered threads (pipe). Straight threads do not provide any sealing and depend on gaskets, O rings, or fitting shapes to seal.

No plumber here..just a big DIY'r

Thanks for the response..

Sorry I didn't mean on the flex line, I actually meant on the fittings.

Now the fitting has two sides They are both male, but one side is flared correct?

Do I put the pipe dope on both sides of the threads.

I found this article as well.

WikiAnswers - How do you hookup a gas dryer (http://wiki.answers.com/Q/How_do_you_hookup_a_gas_dryer)

Pipe threads get tape and dope....the ends that have beveled/tapered ends past the threads do not need it.
If you look at the two lower adapters in the pic http://www.homedepot.com/catalog/productImages/300/be/bea5c90b-98c6-482c-960f-5957d0976aec_300.jpg
The threads that point to the upper right would get tape/dope... the beveled parts to the lower left should not need it.

Gun -

Do you recommend putting both Dope and Tape as well?

Ok, so the beveled ends, that point to the bottom, including the threads do not need pipe dope or tape, just leave those threads and beveled edge alone, correct.

I just want to triple check b/c I don't like messing with gas.

Yes, you have it...couple of wraps of GAS tape, usually yellow, and a dab of dope. Not sure if dope has ratings for gas or water.

And right, leave the others alone.

Gun,

I am just curious as to why you do not put pipe dope or gas teflon on the tapered side threads. It's more of a curiousity question.

As I said...I've heard of some peple that will put a small amount of dope there, probably more as a lubricant than a sealant. I'm no plumber, but those are straight threads just like a garden hose, or a water supply line with compression fittings. Straight threads don't need any tape or sealant, since its the tapered fitting or gasket that makes the seal. Any thing on the threads may interfere, or make the fitting difficult to disassemble in the future.

Thats my reasoning anyway.

Gun.. Thanks so much.. Now I totally understand..

PLEASE DO NOT USE TEFLON TAPE ON GAS PIPING. It will void the warranty on your equipment. The gas valve manufacturers state very clearly NO TEFLON TAPE... It can rip away and cause a gas valve to stick open and any damage it causes will be YOUR responsability. Also, you should never need to use BOTH teflon tape and pipe dope at the same time, if a joint won't seal with one or the other, the the joint is no good and needs to be replaced.:wall:

Clint -

I used gas Teflon, one wrap and then gas pipe dope. no leaks