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Pump leak HPLC 1260 G1312b module

Question asked by chemist23 on Mar 12, 2020
Latest reply on Mar 12, 2020 by sschombu



I am attempting to troubleshoot a leak on an Agilent 1260 G1312B binary pump. I cannot see any leaks, but my I know there is one because my leak test (pressure test) is failing with the blanking nut set at the purge valve.


Parts i replaced:
-Piston seals
-Wash seals
-Seal gaskets
-Outlet ball valve

Before and after replacing the outlet ball valve, I am getting inconsistent results when running the valve test through LabAdvisor. Sometimes it will say the ball valve is defective or the AIV results are ambiguous. Other times they will pass. 

Looking for suggestions on troubleshooting this leak I cannot solve.