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?
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.
Yes it looks like this!
Now the valve is ok and there’s no more leak, maybe now the frit is soaked by the mobile phase and fits better?!
Quality Control Lab Assistant
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Inviato: mercoledì 20 febbraio 2019 09:22
A: Antonella Galeone <email@example.com>
Oggetto: Re: - Re: Purge valve leaks_AGilent 1260
Agilent Community <https://community.agilent.com/?et=watches.email.thread>
Re: Purge valve leaks_AGilent 1260
reply from dmarchini<https://community.agilent.com/people/dmarchini?et=watches.email.thread> in Liquid Chromatography - View the full discussion<https://community.agilent.com/message/6672-re-purge-valve-leaksagilent-1260?et=watches.email.thread#comment-6672>
could you please provide the nut part number and how to replace the purg valu nut
this is the purge valve for Agilent 1260 G1312-60071 | Agilent
You can check in the manual at page 154 on HOW to replace purge valve with this document
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