CP Class HPLC Pump

CP Class Stainless Constant Pressure Dual Head Pump

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The high performance CP Class consists of dual-headed, positive displacement piston pumps with constant pressure control, covering a wide range of flows, with pressures up to 25,000 psi. Standard fluid path material is Stainless Steel. Other available features include Hastelloy fluid path with jacketed pump heads for temperature controlled processes.


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.

 Pump Head Material Options

Dual Stainless.jpgDual Hastelloy.jpg

C​P Class Documentation​

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Quick Start Guide (DUAL HEAD Pumps).pdfQuick Start Guide (DUAL HEAD Pumps)
CP Class Pumps Operators Manual.pdfCP Class Pumps Operators Manual
Check Valve Replacement Instructions.pdfCheck Valve Replacement Instructions
Seal Replacement Instructions.pdfSeal Replacement Instructions
CP Class Datasheet.pdfCP Class Datasheet
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