​The CP Class pumps are widely used for LC Column packing, as well as many process applications. The constant-pressure feedback loop automatically adjusts solvent flow to maintain constant system pressure and allows the user to select a wide range of process parameters, including desired pressure set point, ramp rate, and upper flow rate limit.

The CP Class is available as standalone units, and also with the SSI Column Packing System​ (called Pack-in-a-Box). Features include an integrated Prime-Purge Valve, interactive keypad control, advanced pressure control algorithms, and complete PC control and status through RS-232, Ethernet, and Micro USB 2.0 ports. With 5 mL/min, 24 mL/min, and 100 mL/min versions, the CP Class will meet most LC Column packing and process needs.