Used Lab Equipment

Used Lab Equipment

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Agilent 1290 Series - G4220A HPLC Binary Pump

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Agilent 1290 Series - G4220A HPLC Binary Pump

Agilent 1290 Series - G4220A HPLC Binary Pump

Cambridge Scientific ID #: 20796


The Binary pump is designed for highest performance, GLP compliance and easy maintenance.

It includes the following features:

• Seal wash for continued high lifetime of pump seals for buffer applications.

• Solvent selection valve for method flexibility.

• Jet Weaver for optimum mixing performance with a minimum of delay volume.

• Automatic purge function for ease of use and unattended preparation of the system.

• Auto tuning of the delivery cycle for compensation of elasticity and solvent volume change effects (compressibility, thermal expansion, mixing contraction).

• Solvent selection for optimum flow and composition accuracy.

• Fast defill function for improved intake and delivery performance.

• Two pistons in series design for increased reliability.

• High resolution piston movement control for smooth and reliable motion.


  • Hydraulic system: Two dual pistons in series pumps with proprietary servo-controlled variable stroke design, power transmission by ball screws, smooth motion control of pistons for active damping.
  • Settable flow range:  Setpoints 0.001—5 ml/min, in 0.001 ml/min increments.
  • Flow precision: ≤0.07 % RSD or 0.005 min SD, whatever is greater (0.2—5.0 ml/min).
  • Flow accuracy:  ±1 % or 10 µl/min, whatever is greater.
  • Pressure operating range: Operating range up to 120 MPa (1200 bar), up to 2 ml/min, 80 MPa (800 bar) at 5 ml/min.
  • Pressure pulsation:  <1% amplitude or < 0.5 MPa (5 bar), whatever is greater.
  • Compressibility compensation: Automatic, pre-defined, based on mobile phase selection.
  • Gradient formation: High pressure binary mixing
  • Delay volume: 
    • Jet Weaver V35: <45 µl
    • Jet Weaver V100: <75 µl
  • Composition range Settable range: 0 - 100 %
  • Composition precision: <0.15 % RSD, or 0.01 min SD, whatever is greater
  • Composition accuracy: ±0.35 % absolute (5 – 95 %, 0.2 – 5.0 ml/min)
In Stock Worldwide Shipping Call: 1-877-Used-Lab

Our used lab equipment is fully refurbished, guaranteed to work up to manufacturers specifications and are delivered to our customers in as close to new condition as possible. Typical turnaround for refurbishing of used lab equipment is 2-4 weeks. They also come with our standard 6 Month parts and labor warranty. Prices do not include S/H unless otherwise indicated. Pictures enclosed and the actual unit may vary unless specified.


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