Replaceable heads on Sporlan valves?

[marco3995]

I am newly licensed and have a question. Brazing a copper pipe to a brass TXV proves to be tricky. I have a Sporlan TXV model#EGVE-1/3-Z now Sporlan claims to have a replaceable head, I assume diaphram and everything above. So can you remove the head, braze, then put the head back on or am I thinking of stuff that doesn`t exist? there is 6 sided hex nut built into the head.

Thanks

[frostmonkey]

Yes you can remove the power elment from a TXV, just be sure the power element pins don't got for a walk while you have it apart, what's easier, and most often done in the field is to wrap the valve with a wet rag( Cotton towels work best) to keep the valve body cool while brazing, enfact this is a good practice when ever you braze in any component.:)

[icemeister]

Frostmonkey gives good advice. Here's a link to Sporlan's TEV installation bulletin. See p.2

http://www.sporlan.com/10-11.pdf

[marco3995]

Yeah I brazed withthe wet rag on the txv while I was doing the equalizer line but the filler didn`t want to take to the fitting and as such I had the heat on longer than I wanted. Still I am sure the valve is ok, I used straight acyetlene (spelling?)

[marco3995]

I just removed the head of the TXV, yeah I see what you mean by the pins. The diaphram is out, so now is nothing that can melt?

Mark

[Andy Schoen]

The spring in the valve body perhaps if you are a beginner brazer :p

[the mojo]

Just a suggestion.... Practice with a oxygen-acetylene torch with brass to copper. Have on hand a rosebud for the tip. Trying to sweat in a "G" body with a Turbo torch in a enclosed area is way too much heat in a confined space. I'm sure in no time you will master it. And in 3-6 months you won't be using the acetylene torch anymore.

[markettech]

Soft solder that bad boy in place. Alot less heat and easier to unsweat should you ever have to.

[KB Cool]

Check this out I have one. Works great in tight areas, but any pipe bigger than 1 1/8" don't bother use something else. http://www.smithequipment.com/products/quickbrz/quickbrz.htm

[frostmonkey]

Soft solder that bad boy in place. Alot less heat and easier to unsweat should you ever have to.

Are you still allowed to use soft solder on rerigeration piping in the states, up here in Canuck land its a no no!

[dngtig]

Check this out I have one. Works great in tight areas, but any pipe bigger than 1 1/8" don't bother use something else. http://www.smithequipment.com/products/quickbrz/quickbrz.htm
I have had the Smith torch for close to ten years now I love it. I use just the straight tip on every thing. Your right about the bigger pipe. But the weight and mobility can't be beat.