Thermo Scientific™

UltiMate™ ISO-3100SD Standard Isocratic Pump

Related applications:

Industrial Chromatography

For cost effective, robust and dependable isocratic applications, the Thermo Scientific™ Dionex™ UltiMate™ ISO-3100SD Standard Isocratic Pump is the pump of choice. Meet the demanding speed and ease-of-use requirements of QA/QC laboratories while making the most of equipment budgets. The wide flow rate range (50μL to 10mL/min.) provides maximum flexibility for detection techniques that do not support gradient elution, such as refractive index detection. Thermo Scientific™ SmartFlow™ technology ensures high flow rate and retention time precision.
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Recommended Use

This pump is recommended for standard isocratic applications such as those commonly used in QA/QC laboratories. The ISO-3100SD pump is also an excellent choice as an added pump for LC-MS systems, for example, to load a trap column prior to separation or to deliver MS-interface make-up flow.


  • Serial dual-piston operating principle
  • Wide operating flow rate range from 50μL/min. to 10mL/min. with high flow rate accuracy
  • Support of operating pressures of up to 62MPa (9,000 psi/620 bar)
  • Robust, dependable performance with low operating and maintenance costs
  • Patented piston seal leakage monitoring and system wellness functions
  • Thermo Scientific™ SmartFlow™ technology for high flow rate and retention time precision
  • Active rear-seal wash and floating pistons to maximize seal lifetime and pump uptime