260D Syringe Pump

​260D Syringe Pump

Our most popular model for Supercritical Fluids

The 260D was the first ISCO D-Series pump module, and our first syringe pump designed specifically for refilling under high pressure and pressure programming to handle supercritical fluids. With pressure control to 7,500 psi (517 bar) and a flow rate range from sub-microliter to 100 mL/min, the 260D offers exceptional versatility for almost any type of R&D or method development with supercritical CO2 and other fluids. Dual-pump systems can provide the capability to meter solvent modifiers into the flow stream, or to deliver non-stop continuous flow.

The 260D is also used for a variety of other applications matching its flow and pressure specifications. For applications requiring pressures up to 10,000 psi and/or greater low-flow precision, see the 100D models​.


Pumps Overview BrochureBrochure
260D High Pressure Syringe Pump DatasheetDatasheet
Flat Panel Controller for D-Series Tech BulletinLegacy Document
D-Series and HLf-Series Syringe Pump Controller VersionsTechnical Bulletin
D-Series Quad Dual Pump Systems for Continuous Flow and Independent Operation Tech BulletinTechnical Bulletin
Wash Glands for D-Series Tech BulletinTechnical Bulletin
D-Series Syringe Pumps User ManualUser Manual


When you purchase instruments from Teledyne ISCO, you not only receive innovative, high quality products, you also receive excellent customer service and product support. Your initial purchase is only the beginning of Teledyne ISCO's ongoing commitment to their customers.


​​260D Syringe Pump

​Capacity ​266 mL
​Flow Range
​0.001 to 107 mL/min
​Flow Accuracy
​0.5% of setpoint
​Displacement Resolution
​16.6 nL/step
​Pressure Range
10 to 7,500 psi (0.7 to 517 bar)
​Standard Pressure Accuracy
​0.5% Full Scale
​Optional Pressure Accuracy
​0.1% Full Scale
​Wetted Materials
​Nitronic 50, PTFE, Hastelloy C-276
​Plumbing Ports
​1/8" Valco
​Operating Temperature
​5 to 40 °C Ambient
​Power Requirements
​100 VAC, 117 VAC, 234 VAC, 50/60 Hz
​Dimensions (H x W x D)
39.8 x 10.7 x 18.4 inch​ (101 x 27 x 47 cm)
​Weight ​Pump - 72.3 lb (32.8 kg)
Controller - 6.5 lb (3.0 kg​)

​For a full list of product specifications, see the datasheet.




Standard Features

  • 260D pump has 1/8" Valco fittings for easy connection in process and pilot-plant plumbing.
  • Integral button-style pressure transducer in cylinder cap assures excellent stability and repeatability.
  • Rugged single-ratio drive train has auto-lubricating gears to assure long life and low maintenance.
  • Each ISCO D-Series syringe pump is bench tested at the factory.
  • Cylinder wash system protects the seals from deposits.
  • Exclusive "Smart Key" controller. All ISCO D-series pumps use the same controller that can operate any four pump modules, either independently or together. Operating modes include:
    • Single pump independent constant flow or pressure
    • Single pump flow - or pressure - ramp programming
    • Single pump dispensing
    • Dual pump continuous constant flow or pressure
    • Dual pump concentration gradients
    • Four-pump configured systems
  • RS-232/485 serial interface for computer control or monitoring of operating parameters.
  • Redundant safety is designed in. All D-Series pumps have mechanical and electrical fail-safes, in addition to the factory default or user-set limits.
  • Corrosion resistance. Nitronic 50 - the standard material for cylinders, pistons, and caps - is an austenitic stainless steel with outstanding strength and corrosion resistance.
  • Standard seals are heavy-duty, graphite-impregnated Teflon, providing very long life under harsh operating conditions.


  • Supercritical Fluids techniques including extraction, reaction, and chromatography
  • Precision fluid feed in small-scale experiments
  • Specialized chromatography and other analytical applications requiring extremely low flow noise and mL/min range flows.

Options and Accessories

  • Hastelloy construction
  • Temperature control jacket (cylinder cooling for filling with liquefied gas; thermal stabilization for ultra-low flow rates)
  • High-temperature pressure transducers (for operation with pump cylinder heated up to 200 °C maximum)
  • High-precision pressure transducers (0.1% linear accuracy)
  • Drivers for LabVIEW graphical programming software from National Instruments
  • Alternate seals optimized for special applications: virgin Teflon for corrosive fluids, heavy duty reinforced for slurries and viscous fluids, high temperature, low temperature, and UHMW polyethylene. Choice of seals can be ordered factory-installed.
  • Dual pump continuous flow valve package available in air or electric valve option.