Sample Injection – 6 port diaphragm valve

With the valve in Position A, sample flows through the external loop while the carrier flows directly through to the chromatographic column. When the valve is switched to Position B, the sample contained in the sample loop and valve flow passage is injected onto the column.

Click below to change the valve position. (Currently shown in Position A)

A: Sample loop is filled

Position A

B: Contents of the loop are injected onto the column

Position B