Model CP Constant Pressure Pump

The New Way to Pack Columns with Reduced Shear for Greater Efficiency

A Constant Pressure Pump to Meet Your Needs

SSI now offers a full line of electric, dual-head, constant-pressure pumps for a wide range of column packing applications. These pumps offer the complete range of control and pressure options for packing new small particles (1-micron to 10-micron) and soft, pressure-sensitive polymeric materials.
Packing process advantages include:

• 10,000 psi max. pressure capability
• Increased plate counts by up to 20%
• Higher yields
• The ability to pack ultra-small particles with consistent bed density
• Control of pressure to effectively pack soft, polymeric materials
• Full PC control with included software: save methods, pressure/flow control, monitor & save pressure/flow data

Specifications

• Conventional Electric Pump (110 Volt or 220 Volt input)
• Constant Pressure Control Mode for column packing applications
• Dual Pump Heads, cam-driven with single stepper motor drive
• 0.01–24.00 mL/min. flow rate
• 10,000 psi upper pressure limit (across the flow range)
• Dual ball and seat check valves (ruby ball, sapphire seat)
• 316 Stainless Steel fluid path
• Prime-Purge Valve
• Front Keypad Control w/ LED Display (pressure, flow, set, points, etc.)
• RS-232 Serial com port for PC interface
• USB Connectivity (integrated USB to RS-232 solution)
• User Controls & Set-Ups: Set Desired Pressure (flow rate adjusts automatically; Set Ramp Rate (adjusts rate of change in auto-flow adjustment); Set Upper Flow Rate Limit
• PC Control software included: develop & save methods, control flow & pressure via RS-232, monitor & save packing process data

Column Packing System

SSI’s column packing reservoir system is specifically designed to provide fast, versatile, safe packing of efficient, reproducible columns. An internal baffle prevents the inlet flow stream from inpinging directly on the slurry in the reservoir. A conical outlet section promotes smooth transfer of the slurry to the column. The quick-change thread reservoir closures help eliminate slurry-settling problems and promote more reproducible packings.
The modular design allows fast interchange of reservoir housings and column connectors. Knurled closure nuts and Kalrez® seals combine to allow fast, leak-tight changes to be made by hand—no tools required. The column couplings are drilled to allow direct contact of the column to a pre-column of the same diameter. This allows the columns to be removed without disturbing the packing bed.

Column Packing Accessories

Description…..Part #
Inlet Cap, 1/16" inlet tubing…..010241
Inlet Cap Assembly, column packer, 1/4" CPI seat…..010242
Column Packer Reservoir, 20 mL, 5-3/4"…..011191
Column Packer Reservoir, 40 mL, 10-1/2"…..011192
Column Packer Reservoir, 80 mL, 20"…..011193
Outlet Cap Assembly, 1/4"…..010228
Nut, column packer, SS…..011185
O-Ring Seal, Kalrez®…..901009