Sielc Technologies

Devices 

 

HPLC Pump 

Advanced high pressure pump with:
  • Built-in degasser
  • Built-in proportional valve
  • Built-in pressure transducer
  • Built-in purging valve
  • Built-in pressure damper
  • Built-in back plunger wash 
The high-pressure modular pump is designed for high-pressure chromatographic and general laboratory fluid delivery applications. The pump is engineered for precise fluid delivery at low to medium flow rates, ranging from 0.01 ml/min to 4 ml/min.  The pump is capable of delivering 5,000 psi (350 bar) of continuous pressure.  Built-in proprietary pulse damper with low dead volume and free of dampener liquid reduces pulsation to the negligible level.
A built-in pressure transducer controls generated pressure, and can be set up to shut down operation when specific pressure is reached.
A built-in two-channel proportional valve allows to select two different solvents in any proportion from 0 to 100%, in 1% increment.
A built-in two-channels degasser allows to remove dissolved air from pumping liquid, increasing accuracy and performance.An all-ceramic plunger allows to deliver reactive liquids such as organic solvents, reagents, acids and bases.This is a convenient replacement of a peristaltic pump that is free from liquid-compatibility issues.
Precision stepper-motor-driven mechanism allows to maintain accurate flows in a wide range of flow rates.
The pump features a calibrated digital flow speed control designed specifically for the precision requirements of high-pressure applications.
The pump features communications capability for integration with other instrumentation through the RS485/232/CAN protocols

Available custom options

The pump is available with one or two solvent channels, with or without a degasser.High-flow version of the pump (preparative) is available with flow rates up to 30 ml/min and max pressure 2000 psi.Metal-free version of the pump includes PEEK pump head and can be operated up to 4000 psi.Communication of pumps over RS485 allows the connection of several pumps in a single-controller  operational chain.RS232 is optional communication protocol for single device operations. CAN communication is also available.Simple PC based software for pump operation is available

Pump Specification

Power requirements  24 VD
CCurrent  requirements up to 1.5 A
Dimensions 7.6 cm x 17 cm x 12.7 cm   (3.0”w x 6.7”h x 5.0”d)
Weight 2 kg (4.4 lb)
Flow rate range 0.01 to 4 ml/min
Speed accuracy 1% of full-scale
Linearity full range 0.01-5.0 mL/min
Pressure 5000 psi (350 bar) continuous
Operating temperature 0 to 40 C, non-condensing
Tube connectionsInlet: thread 1/4-28 bottom type
Outlet: thread 10-32 compression type