Agilent 1100 Series G1323B Column Switching Valve

This Agilent 1100 Series G1323B Column Switching Valve is a used module pulled from an active HPLC system and offered in tested, functional condition. It is designed to integrate seamlessly into Agilent 1100 series liquid chromatography stacks, giving laboratories the ability to route mobile phase between multiple columns without manual intervention, which is essential for method development, column screening, and multi-dimensional separations. The valve body and actuator have been inspected for smooth switching action and leak-free sealing prior to listing. Laboratories running method validation, quality control, or research workflows rely on column switching valves like this one to extend the versatility of an existing HPLC platform without purchasing an entirely new system. This unit allows technicians to automate column selection sequences, reducing manual downtime and improving reproducibility across long analytical runs. It is a practical, cost effective way to add switching capability to an Agilent 1100 series configuration already in service. Because this is previously owned laboratory equipment, it is sold as functional pre-owned hardware and buyers should plan to verify calibration and perform their own qualification checks before placing it into a regulated workflow. It is well suited for labs that already operate Agilent 1100 series instrumentation and want to add or replace column switching functionality at a fraction of new equipment cost.