Bad liquid service valve

[hvac5646]

Valves aren't what they used to be. I heat sink the valves with extra rags...makes brazing a little tougher, but at least I don't cook any more cheap Chinese valves.

I'd hate to be the guy using a Turbo Torch these day...you have to use them full open and you can't adjust the flame size. Makes for any easy overheat situation.

I know few guys who can use a Turbo with out over heating line set and valves.

[trai]

what the brand of that pinch off tool.

[VTP99]

what the brand of that pinch off tool.

Imperial tools makes one.

[VTP99]

For what it's worth I personally would not use a pinch off tool on a thru type line. On a process tube or to remove a pressure switch is one thing. Pinching a line then re rounding it is h*ll on the tube wall. That's my

[Dchappa21]

For what it's worth I personally would not use a pinch off tool on a thru type line. On a process tube or to remove a pressure switch is one thing. Pinching a line then re rounding it is h*ll on the tube wall. That's my

I agree.

[myott]

myott- get a pinchoff tool or two. You can stop the refrigerant in copper tube like it was a valve and open it later.

Great for adding a LL filter without having to pump down system, or if your service valve is broke.

If you do crimp off area to add a liquid line dryer how do then evacuate the area between the crimped area? Adding a shrader valve?


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[Snapperhead]

If you do crimp off area to add a liquid line dryer how do then evacuate the area between the crimped area? Adding a shrader valve?


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just use the low side valve port

you will have low side valve closed off , so the shrader will still be available to you on the evap side

[timjimbob]

you could add a 1/4" tap. Use two pinch offs, cut out old filter and reinstall filter w/ shrader and pull a 5 minute vacuum. reform tube.

I'm not a fan of pulling vacuum through a TXV.

[Snapperhead]

Now that I think about it , if you did the pinch off way , your better off adding a shrader near the bad valve , otherwise you wont be able to flow nitro while brazing. Now you can pull a vac from both sides as well.