This Information Applies To: Agilent Isocratic, Binary and Quaternary Pumps with AIV : G1310A/B,G1311A/B/C, G1312A/B, G7110B, G7111A/B
Switch off the pump and unplug the power cable. Use an optional solvent shutoff valve or lift up solvent filters in solvent reservoirs to avoid liquid siphoning.
Steps to Follow
Figure 1. Parts of the AIV
1. AIV cartridge, 2. AIV body
Unplug the active inlet valve cable.
Disconnect the solvent inlet tube from the inlet valve (be aware that solvent may leak out of the tube due to siphoning, so wear suitable gloves).
Unscrew the adapter from the active inlet valve.
Using a 14 mm wrench loosen the active inlet valve nut and then remove the valve from the pump head.
Using a pair of tweezers remove the valve cartridge from the actuator assembly.
Before inserting the new valve cartridge clean the area in the actuator assembly. Flush the cartridge area thoroughly with alcohol.
Insert a new cartridge into the actuator assembly (make sure the valve cartridge is completely inserted into the actuator assembly).
Note: The G1310A, G1311A and G1312A are 400 bar pumps, while G1310B, G1311B/C, G1312B, G7110B, G7111A/B are 600 bar pumps.
Insert the new valve into the pump head. Using the 14 mm wrench turn the nut until it is hand tight.
Position the valve such that the solvent inlet tube connection points towards the front and slightly to the right.
Using the 14 mm wrench tighten the nut by while holding the valve into its final position.
Reconnect the adapter at the active inlet valve.
Reconnect the solvent inlet tube to the adapter. Reconnect the active inlet valve cable to its connector.
Purge the system with 30 mL of solvent in order to achieve a low-pressure ripple.
|Learn how to effectively maintain your Agilent valves:
Agilent 1260 Infinity LC with OpenLab CDS System Leak Errors
Agilent 1260 Infinity LC with ChemStation System Leak Errors courses available from Agilent education