C&l Electric

Masterflex C/L 77122-24 Variable-Speed Tubing Pump; 50 to 300 RPM, 12 VDC Power

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This is a Masterflex C/L 77122-24 Variable-Speed Tubing Pump; 50 to 300 RPM, 12 VDC Power

What you will get:

  • 1 Masterflex C/L 77122-24 Variable-Speed Tubing Pump; 50 to 300 RPM
  • 1 12 Volt 1 Amp Power Supply
  • 1 Printout of the instructions from the link provided below.


This is a Masterflex C/L 77122-24 Variable-Speed Tubing Pump; 50 to 300 RPM with an included 12 VDC 1 Amp Power Supply.  According to the text on the back of the pump, the max draw is 2.4 Amps.  So you may want to get a more powerful 12 Volt Power Supply.  But in my testing, this power supply was adequate to test these units.  You will have to determine if the included power adapter will work long term in your application.  These are my items 6465 and 6466.  2 were available at listing time.

More Information:

Key Features

  • Flow rate: 0.002 to 43 mL/min depending on drive rpm and tubing size
  • Polyphenylene sulfide (PPS), acetal, and copolyester pump head with four stainless steel (SS) rollers
  • Max button runs pump at 100% of maximum rpm—use to prime or to rapidly flush tubing
  • Stackable, compact 1/4-DIN housing — mount in your equipment rack or place on your lab bench. (To mount, order brackets 77120-03) (Not Included).
  • Pumps accept continuous lengths of tubing for a clean, uninterrupted flow path with no fittings.
  • Separate single-turn speed control and cw/off/ccw switch with green LED power indicator — maintain speed setting when you turn pump on/off or reverse direction.
  • Reversible permanent magnet DC motor; purge fluid before or after pumping; pump fluid in either direction.
  • Remote control connections on back of pump; start/stop pump with a contact closure.
  • “Max” button runs pump at maximum rpm — prime or rapidly flush tubing.
  • Pump head has average fixed occlusion for tubing; no need to adjust occlusion.

More About this Item

C/L pumps are compact (1⁄4 DIN) and perfect for low-flow OEM use or analyzer applications. These easy-to-use, economical pumps feature reversible pumping, remote control capabilities, and rapid tubing changes. Ideal for consistent fluid delivery in chromatography, spectroscopy, and dispensing applications.
Maximum suction lift of 5 ft (1.5 m); max discharge head of 20 ft (6.1 m); max pressure 15 psi (1.0 bar). Self-priming pumps withstand minor back pressure.

Links and Documentation:
  • Masterflex C/L Single-Channel Variable-Speed Compact Pumps Instruction Manual
  • Link to the Cole Parmer Site where this is described

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