PrimeLine™ HPLC Pumps
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The ASI HPLC pump is designed with the chromatographer in mind. It can be used as a reliable low cost isocratic pump or integrated into a gradient HPLC System. In either case, the pump incorporates several key features which make it truly one of a kind in the world of HPLC Pumps.
ASI HPLC Pump Features:
Self-Priming
- The pump will prime itself with any solvent and at any flow rate. Turn on the pump and open the purge valve, the pump will prime itself even from a completely dry start. You will never need to use syringes to prime it.
Patented Floating Pump Seal
- The seal actually floats so that it is always perfectly aligned with the piston. Our tests have proved that the average life with this new patented design is more than 5,000 hours of continuous operation at 6,000 PSI and 10 mL/min. with pure water.
Micro, Analytical, Semi-Prep, and Prep Pump Heads
| Pump Head | Flow Rate Range | Pressure Rating |
| Micro Head: | 0.5µL/min. to 4 mL/min. | 6,000 PSI Max |
| Analytical Head: | 1.0 µL/min. to 10 mL/min. | 6,000 PSI Max |
| Semi-Prep Head: | 0.050 mL/min. to 20 mL/min. | 2,500 PSI Max |
| Prep Head: | 0.100 mL/min. to 80 mL/min. | 1,000 PSI Max |
UHPLC Version
Isocratic and gradient systems with a micro pump head are available in UHPLC versions. Specifications are similar to the Micro Pump and include an upper pressure limit of 15,000 PSI up to 1.0 mL/min. and 9,000 PSI up to 2.0 mL/min.
Intuitive Software Control
- The control is designed with dedicated keys that allow even a novice to turn on the pump and create methods. An easy to read 4-line x 20-character LCD display allows the user to monitor several pump parameters from the same screen. The model 501 can be controlled from its own keypad or from a Model 500 gradient controller. When configured as a gradient HPLC system users can program and store up to 60 methods with 20 lines each. Methods may be linked or run independently.
Solvent Compressibility Compensation
The user may select from several different solvents from the on board library. The control automatically compensates
for compressibility of the selected solvent.
Easy Maintenance
- All user serviceable components are easily accessed from the front panel. Once the head assembly is removed, the pistons and seals can be replaced quickly and easily without the use of tools.


