SunFlow 2010

Analytical HPLC Pump

This analytical pump works as isocratic pump and together with the Solvent Organizer SF 2040 with degasser also as gradient pump.

7553-sunflow-2010-offenWith a flow rate of 0.01-10.00 mL/min and a pressure limit at 40 MPa this pump is suited for analytical applications in liquid chromatography. It is designed with main and auxiliary pump heads connected in series with a piston diameter of ⅛”. A new sophisticated unit allows achieving a precise low-pressure gradient, i.e. gradual changes of solvent composition by mixing up to four liquids at the pump’s entry.

It is also possible to predefine the percentage of composition when using the pump in an isocratic mode. The gradient profile can be defined from a computer. There are many improvements which make the pump more reliable, safe and precise.

The maintenance became also easier. E.g. pistons exchange is easier because of the new construction, new learning algorithm for pulsation suppression, leakage sensor etc.

If necessary, it is possible to use back flash of the pistons (e.g. when using buffered mobile phase). The pump is supported by the software ChromStar® and Clarity®


Analytical ParametersProgrammingCommon Parameters
Analytical Parameters
Pumping system two plungers dia. 1/8″ connected in series with electronic pulsation damping
Flow rate 0.01 – 10.00 mL/min
Repeatability of flow rate ± 0.5 % (1 mL/min 12 MPa H2O)
Accuracy of flow rate ± 2 % (1 mL/min 12 MPa H2O)
Maximum operating pressure 40 MPa = (400 bar / 5800 psi)
Adjustable lower pressure limit 0.00 – 39.00 MPa
Adjustable upper pressure limit 1.00 – 40.00 MPa
Accuracy of pressure measurement ± 2 %
Number of valves* 4 (A, B, C, D)
Setting of components concentrations* 0.00 – 100.00 %
Contact materials stainless steel, sapphire, KEL-F, seals**
* Gradient functions are available only together with gradient tray with degasser ** Seals material: default is GFP (PTFE), optional is UHMW-PE
Adjustable features Flow rate; upper and lower pressure limit; Pulsation
displayed Information Pressure; warnings and errors; automatic Pulsation compensation
Keypad10 pushbuttons

Common Parameters
Communication RS 232C, RJ45 (LAN), USB, auxiliary in- and output
Display resolution VFD; 140 x 32 pixels
Power supply / voltage range 100 – 240 V ± 10 %, 50/60 Hz, 100 VA
Operating temperature range 5 – 40 °C, 20 – 80 % air humidity
Storage temperature -25 – +60 °C
Dimensions (w x h x d) 280 x 135 x 498 mm
Weight 10 kg