High-Precision Ultra-High Pressure Pumps

High-Precision Ultra-High Pressure Pumps

Achieve 18,000 psi pressure across the entire flow range
Two versions available�constant flow and constant pressure
Flow accuracy to <±1% with precision being 0.5% RSD on >30 sec average flows
Allow fine adjustment of flow in microliter increments

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These ultra-high pressure positive displacement pumps have been specifically designed for analytical to high-speed, high-resolution liquid chromatography (LC) applications and ultra-high pressure metering.

The constant flow pump provides flow rates from 0.001 to 5.000 mL/min, with flow settings in 1 μL increments and upper pressure of 18,000 psi across the flow range. This pump provides very low pulsation using advanced solvent recompression algorithms and automatic pressure compensation for accurate flow rates.
The constant pressure version has been developed for LC column packing (1 to 10 micron particles) or for holding reactors at high pressure. Standard features include prime-purge
valve, pressure transducer, LCD, and RS-232 interface. This pump has a flow range of 0.001 to 12.000 mL/min with the flow rate automatically adjusted to maintain the pressure set point, up to 18,000 psi.

Wetted parts 316 SS, sapphire pistons, ruby / sapphire check valves, PTFE inlet tubing and UHMW polethylene seals
Material (piston) Sapphire
Cylinder body 316 SS
Flow rate (min) 0.001 ml/min
Max flow rate (ml/min) 5.000 ml/min
Max pressure 18,000
Accuracy <+/-1%
Repeatability 0.5% RSD on >30 sec average flows
Dimensions 5-1/2" x 10-3/8" x 17-1/2" (140 x 264 x 445 mm)
Power VAC 110 to 220 VAC
Hz 50 / 60 Hz


 ****To make your own pump system among various number of pump heads, drivers and tubings please contact us. You can choose from Cole-Parmer catalog  or if you don't have the catalog you can request from our requests menu in the site.

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