why are txv solder connections so short??

[primmers]

i just soldered a txv into a new evaporator, theres a ton of room in the evaporator
but the txv seem to have as short a connection as they can make...

[monkeyspanners]

I mostly fit danfoss valves, often find it easier to put some stubs on the valve before fitting where access isn't good in its correct position.

[primmers]

i installed a danfoss the other day, i went to set the superheat and was suprised the adjustment was on the side...do u use regular silver solder on those??

[Trehak01]

I find using flux and a little 15% does wonders on those. I don't like how they are so close to to the body makes me nervous installing them. doing all that work just to find that you burned it up installing it..

[Dchappa21]

i installed a danfoss the other day, i went to set the superheat and was suprised the adjustment was on the side...do u use regular silver solder on those??

LOL.. Yep don't ever try to unscrew the bottom to adjust it you'll be in for a surprise.

As far as short connections on the valves, I'm guess its a cost thing. I just try to burn it in real quick with little 1/2" or so strip of wet rag wrapped around it. With the danfoss valves you heat the pipe mostly then just touch the fitting when the pipe is hot enough.

I get more pissed at the short connections on filter driers then txvs. Got to love the smell of burning paint.

[Dchappa21]

Danfoss brazing video.

[monkeyspanners]

i installed a danfoss the other day, i went to set the superheat and was suprised the adjustment was on the side...do u use regular silver solder on those??

These are the sort of valves we get here, (this is on a bulk milk cooler)



I wrap the valve in a wet rag and have a pepper pot burner on the oxy acetylene torch. I use 15% silver rods and no flux as the rods are self fluxing on copper and copper plated fitting.

[timebuilder]

I'd want to see that Danfoss valve in use after that. Not just pipes in a lab.

[Tommy knocker]

The more we burn up the more they sell us.

[danbb]

changed a lot of danfosses on Manitowoc ice machines, put a wet rag on them and they're fine, those are all Danfoss TUC series valves

[itsiceman]

I'd want to see that Danfoss valve in use after that. Not just pipes in a lab.

timebuilder Have you ever brazed in a Danfoss like they show? The Stainless is so thin I would hold the valve by the head while you braze it. You could grab the body shortly after. They show much more heat than is needed IMO.

[Capz]

These are the sort of valves we get here, (this is on a bulk milk cooler)



I wrap the valve in a wet rag and have a pepper pot burner on the oxy acetylene torch. I use 15% silver rods and no flux as the rods are self fluxing on copper and copper plated fitting.

That's long stem cryogenic valve used a cryo system. That brand valve is made in England. I installed a bunch of them on liquid cryo stations.