The 14 port valve permits a variety of plumbing arrangements. This one loads the same sample onto three sample loops for injection onto three different columns. This is used primarily by column manufacturers for QA since samples are injected simultaneously. It has also seen use in labs to perform different parts of the same analysis.
Click below to change the valve position. (Currently shown in Position A)
A: Three sample loops loaded in series
B: Contents of three loops injected on three columns