Watson Marlow 604S Peristaltic Pump

• Accurate dosing and metering in laboratory and pilot plant settings.
• Transfer of shear-sensitive biological fluids, such as cell cultures or enzymes.
• Handling of corrosive chemicals where isolation from pump components is critical.
• Dispensing of viscous or particulate-laden slurries in industrial processes.
• Sterile fluid transfer in pharmaceutical or food processing applications.

Flow Rate

Typically up to 11 litres per minute for this model series, depending on tubing size and drive speed.

Ingress Protection (IP) Rating

Commonly IP55, indicating protection against dust ingress and low-pressure water jets.

Speed Control

Typically features variable speed control for precise flow adjustment.

Tubing Material Compatibility

Compatible with various tubing materials (e.g., Marprene, silicone, Bioprene) to suit different fluid chemistries.

Pump Head Type

Often equipped with a 604S pump head, designed for industrial and laboratory use.

Power Supply

Units of this class typically operate on standard single-phase industrial power, commonly 230V, 50/60Hz.

• What are the main advantages of a peristaltic pump like the Watson Marlow 604S?

  Peristaltic pumps offer fluid isolation from mechanical parts, preventing contamination and making them suitable for corrosive, abrasive, or shear-sensitive fluids. They also provide accurate and repeatable dosing.

• Is this unit suitable for continuous operation?

• How difficult is it to change the tubing?

• Can this pump handle viscous liquids?

• What maintenance is typically required for a peristaltic pump?

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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