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

Peristaltic pumps offer isolated fluid paths, meaning the fluid only contacts the tubing, preventing contamination and making them suitable for corrosive, shear-sensitive, or sterile applications. They also provide accurate and repeatable dosing.

Is this pump suitable for continuous operation?

Yes, units like the 604S are designed for continuous operation in appropriate industrial and laboratory environments, though tubing life will vary with application specifics.

What type of fluids can this pump handle?

The 604S can handle a wide range of fluids, including viscous, abrasive, shear-sensitive, and chemically aggressive liquids, depending on the selected tubing material.

How is the flow rate controlled on this model?

Flow rate is typically controlled via variable speed adjustment of the pump head, allowing for precise setting of the fluid transfer volume.

What maintenance is required for a peristaltic pump?

The primary maintenance task for a peristaltic pump is the periodic replacement of the flexible tubing, which is a simple and quick procedure.

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Watson Marlow 604S Peristaltic Pump

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 1

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 2

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 3

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 4

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 5

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 6

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps, photo 7

Used Watson Marlow 604S Peristaltic Pump - Peristaltic Pumps

used Equipment

Available

Verified seller

Watson Marlow 604S Peristaltic Pump

Name: Watson Marlow 604S Peristaltic Pump
Brand: Watson Marlow
SKU: 2396.SR2B
Availability: InStock

Price: Contact seller for price

This listing is for a Watson Marlow 604S Peristaltic Pump.

The unit is in full working condition and is ready for immediate release.

The Watson-Marlow 604S is a laboratory/industrial peristaltic (tube) pump, designed for dosing, metering, and fluid transfer tasks where the fluid must remain isolated from moving parts.

It’s part of the “600” series of Watson-Marlow pumps and is intended for relatively high flow rates in a controlled environment (e.g. labs, pilot plant, certain chemical or processing setups).

Because it’s a peristaltic pump, the fluid only contacts the inner wall of a flexible tube, which makes it suitable for shear-sensitive, corrosive or potentially particulated fluids, without contaminating the pump internals.

Strengths

Clean & Isolated Flow: Because only the inner surface of the tubing contacts the fluid, there is no risk of cross-contamination or fluid leaking into mechanical parts.
Good Flow Capacity: With a relatively high maximum flow (≈ 11 L/min), it can handle moderate bulk transfer in addition to dosing.
Robust Housing: The IP55 rating makes it resistant to dust ingress and water spray, which is beneficial in industrial or lab environments with splashes.
Variable speed control: The broad control range allows fine tuning of flow.
Relative simplicity of maintenance: Replacing tubing is straightforward compared to more complicated pump mechanisms (valves, seals, diaphragms, etc.).

Cambridgeshire, United Kingdom

5,773 km away

Model Number

604S

Stock Number

2396.SR2B

Machinery Masters View

Typical context for this category of equipment. Always confirm specifics with the seller.

Accurate dosing and metering of sensitive or corrosive fluids in laboratory settings.
Fluid transfer in pilot plants or small-scale industrial processes.
Handling of shear-sensitive biological cultures or viscous slurries.
Chemical addition and reagent delivery in analytical or process control applications.
Sterile fluid transfer in pharmaceutical or biotechnology research.

Typical flow rate range: Units in this series commonly offer flow rates up to approximately 11 litres per minute.
Ingress Protection (IP) rating: The 604S typically features an IP55 rating, indicating protection against dust and water spray.
Speed control: Variable speed control is commonly found on units of this type, allowing for precise flow adjustment.
Tubing material compatibility: Suitable for a wide range of tubing materials, selected based on chemical compatibility and application requirements.
Power supply: Typically operates on standard single-phase industrial or laboratory power supplies, commonly 230V, 50/60Hz for the UK market.
Maintenance: Maintenance primarily involves the straightforward replacement of the peristaltic tubing.

Peristaltic pumps offer isolated fluid paths, meaning the fluid only contacts the tubing, preventing contamination and making them suitable for corrosive, shear-sensitive, or sterile applications. They also provide accurate and repeatable dosing.

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.

General overview for this equipment type

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.