Cole Parmer Masterflex L/S 7554-95 Peristaltic Pump

• Precise dosing and transfer of sensitive biological fluids in laboratory and research environments.
• Handling of viscous liquids and shear-sensitive materials in pharmaceutical production.
• Metering and dispensing of corrosive chemicals in industrial processes.
• Sterile fluid transfer in biotechnology and medical device manufacturing.
• General fluid handling for analytical instrumentation and pilot plant operations.

Typical flow rate range

For this class of equipment, flow rates commonly range from microlitres per minute up to several litres per minute, dependent on pump head and tubing selection.

Speed control

Units of this type typically offer a variable speed drive, often with a range from a few RPM up to 600 RPM for precise flow adjustment.

Pumping principle

Peristaltic, ensuring fluid contact only with the tubing, making it suitable for sterile or corrosive applications.

Power supply

Commonly operates on standard laboratory voltages, typically 100-240 VAC, 50/60 Hz.

Tubing compatibility

Designed for use with various L/S series tubing sizes and materials, allowing for broad chemical compatibility and flow rate adjustment.

Control interface

Typically features a digital display and keypad for setting speed, direction, and other operating parameters.

• What is a peristaltic pump and how does it work?

  A peristaltic pump uses rollers to compress and occlude a flexible tube, creating a vacuum that draws fluid through. This action provides precise, repeatable flow without the pump mechanism contacting the fluid.

• Why is this unit listed without a pump head?

• What kind of maintenance does a Masterflex L/S pump require?

• Can this pump handle viscous or shear-sensitive fluids?

• What are the benefits of reversible pumping?

Peristaltic pumps are valued in laboratory and pharmaceutical settings for their gentle, non-contact fluid handling, making them suitable for delicate samples and sterile applications. When buying used units, buyers typically prioritise checking tubing condition, motor functionality, and calibration history. Industry sentiment favours these pumps for their reliability, low maintenance requirements, and consistent flow rates. Common strengths include versatility across various fluid viscosities and compatibility with corrosive or shear-sensitive media. Prospective buyers should verify spare parts availability for specific models.

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