hello,
i've changed frit and golden seal cap of my HPLC Agilent 1260 as ususal. This time, after the replacement of the valve, there's a leak, I' ve tighten the valve but there is a drop: what can I do?
thanks!
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hello,
i've changed frit and golden seal cap of my HPLC Agilent 1260 as ususal. This time, after the replacement of the valve, there's a leak, I' ve tighten the valve but there is a drop: what can I do?
thanks!
Hello, this is the purge valve you have installed on the head of the pump? If yes, I usually never change the gold seal, but I only take it out for the ptfe frit change, then I'm reistalling the same gold seal.
If the leak is on
A : replace the nut and the tubing
B : probably the gold seal is not perfectly adapted, change it again.
B "MacGyver version" : use teflon on the thread...at least you won't see any drop
Alway, never overtight it, it get stuff worse.
Hope you solve the problem.
I have the same problem and did not know how can I resolve it
Hi
What is this yellow color?
If you are changing frit and gold cap then before installing dip it in mobile phase for at least 5 minutes in beaker.
After this, you can replace frit n gold cap..
Please don't use teflon or whatsoever in purge valve fittings, you got to avoid this material entering the system; the risk of entire LC system contamination is too high.
What kind of purge valve is that? I don't see the PV O-rings P/N 5067-6595. I suggest you to change the gold seal cap assemby P/N 5067-4728, and to use teflon while the spare parts arrive; and better, to replace the entire purge valve, P/N G7111-60061.
We use LC 1290/1260/1100 with these 2 purge valve in our lab.
<a href="">https://imgbb.com/"><img src="">i.ibb.co/.../20210708-151414.jpg" alt="20210708-151414" border="0"></a>
Please don't use teflon or whatsoever in purge valve fittings, you got to avoid this material entering the system; the risk of entire LC system contamination is too high.
What kind of purge valve is that? I don't see the PV O-rings P/N 5067-6595. I suggest you to change the gold seal cap assemby P/N 5067-4728, and to use teflon while the spare parts arrive; and better, to replace the entire purge valve, P/N G7111-60061.
We use LC 1290/1260/1100 with these 2 purge valve in our lab.
<a href="">https://imgbb.com/"><img src="">i.ibb.co/.../20210708-151414.jpg" alt="20210708-151414" border="0"></a>
I agree-Please DO Not use Teflon...
Thank you a lot for your answer, I am not using the Teflon inside the purge valve and I clean it with the solvent acetonitrile so as to avoid the contented,
sorry these links don't open so I can:t see the pictures
The O-ring is the P/N 5067-6595 1260 PV O-ring FKM5lpack it's cut so I think it is the real problem. and I cant buy another one for now so I ask for advice
Thank you for your replay
I tried a new O-ring that I borrowed from a friend and the problem was solved and the device works fine, but I please from the company to help me by providing an agent for spare parts in Iraq, as there is no agent specialized in chromatography devices or Spectro for chemical testing such as ICP or AAs