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Multi-Diaphragm Pumps

Industrial-scale Preparative Liquid Chromatography Specialist Chooses Multi-Diaphragm Pumps

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Atex-Compliant Configuration

Atex-compliant configuration, a common requirement in industrial preparative chromatography, is available on all models.

Two Hydra-Cell models are offered as standard equipment in Separlab HPCL systems: the G03 (max flow 11.3 l/min at 70 bar) and the G10 (up to 29 l/min at the same pressure).

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“In our systems,” says Separlab MD Stanislav Vozka, “the Hydra-Cell pumps are mainly used in the continuous delivery of mobile phase. At the moment we use low-viscosity organic solvents, both polar and non-polar, but we do not exclude aqueous solutions in future.”

“Sample injection — once per run — was the next application, and we are now using the G03 to deliver special auxiliary liquid to a piston pump on the column.”

G10 pumps are also employed on mobile phase delivery, with further expansion of the Separlab product range. Their higher flow is needed for columns larger than 500 mm ID.

The company’s high-pressure industrial-scale separation units are usually built to bespoke design. The figure above shows a typical installed system where a Hydra-Cell G10 delivers mobile phase, while G03 pumps deliver samples for separation and pressurize the column.

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