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

Peristaltic pumps offer isolated fluid paths, meaning the fluid only contacts the tubing, preventing contamination and making them suitable for sterile, corrosive, or shear-sensitive liquids. They are also relatively low maintenance due to the absence of valves or seals in the fluid path.

Can this pump handle viscous fluids?

Yes, peristaltic pumps are generally well-suited for handling viscous fluids, as the pumping action effectively moves the fluid through the tube. The maximum viscosity will depend on the specific tubing and flow rate required.

What kind of maintenance does a peristaltic pump require?

The primary maintenance involves periodic replacement of the peristaltic tubing, as it is the only part in contact with the fluid and subject to wear. This is typically a straightforward procedure.

Is this pump suitable for continuous operation?

Units of this type are designed for both intermittent dosing and continuous fluid transfer. The lifespan of the tubing will be a factor in continuous, long-term applications.

What is the significance of the IP55 rating?

An IP55 rating indicates that the pump housing is protected against dust ingress sufficient to prevent interference with operation, and against water jets from any direction. This makes it suitable for environments where splashes or dust are present.

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Watson Marlow - 604S Peristaltic Pump

Name: 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

5,791 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.

Applications & Use Cases

Precise dosing and metering of reagents in laboratory settings.
Transfer of shear-sensitive biological fluids and cell cultures in biotech.
Handling of corrosive chemicals and solvents in pharmaceutical production.
Controlled fluid transfer in pilot plant operations and R&D.
Dispensing of viscous or particulate-laden liquids without contamination.

Typical Specifications

Typical flow rate: For this class of equipment, flow rates commonly range up to approximately 11 litres per minute, depending on tubing size and drive speed.
Power supply: Units of this type typically operate on standard single-phase mains power, commonly 230V, 50/60Hz in the UK.
Ingress protection: The 604S model is typically rated to IP55, indicating protection against dust ingress and low-pressure water jets.
Control interface: Commonly features variable speed control via a keypad or analogue input for precise flow adjustment.
Tubing compatibility: Designed for use with various peristaltic tubing materials and sizes, allowing for broad chemical compatibility and flow ranges.
Footprint: Typically a benchtop unit, compact enough for laboratory or small-scale industrial integration.

Frequently Asked Questions

Peristaltic pumps offer isolated fluid paths, meaning the fluid only contacts the tubing, preventing contamination and making them suitable for sterile, corrosive, or shear-sensitive liquids. They are also relatively low maintenance due to the absence of valves or seals in the fluid path.

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.