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Watson-Marlow 520Di Programmable Peristaltic Dispensing Pump for Aseptic Fluid Transfer

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Stock Number
31648/31647/31649/SR9B1
All 3 specifications
  • Ships to NL
  • Response within 1 hour
  • Warranty available. Buy without worry
  • Support from a scientist

Specifications 3

Brands
Watson-Marlow
New/Used
Used
Stock Number
31648/31647/31649/SR9B1

Product description

High-precision 520Di peristaltic pump delivers 50 mL in 2 sec ±0.5% accuracy, ideal for aseptic biotech applications.

The Watson-Marlow 520Di is a high-precision, programmable peristaltic dispensing pump engineered for aseptic fluid transfer and filling in pharmaceutical, biotechnology, and food processing environments. Designed to meet rigorous biotechnology and molecular diagnostics requirements, it supports up to 50 programmable batch routines, making it critical in biopharmaceutical production pipelines and cGMP-compliant workflows.

Key features include:

  • Dispensing performance: Delivers 50 mL within 2 seconds at ±0.5% accuracy, supporting flow rates up to 3.5 L/min and maximum pressures of 2 bar, essential for precise cell culture media filling and reagent dosing.
  • User interface: Tactile membrane keypad coupled with alphanumeric LCD screen enables intuitive programming and adjustment of fill sequences, facilitating benchtop reagent preparation and live-cell imaging media applications.
  • Program storage: Stores 50 custom fill/dispense sequences for fast batch processing adherence, supporting reproducibility in synthetic biology research and gene editing protocols.
  • Security controls: Optional passcode protection secures settings, ensuring compliance with pharmaceutical and biotech lab security standards.
  • Enclosure options: Available in IP31 (NEMA2) and IP66 (NEMA4X) rated housings for use in diverse lab and production environments including cleanrooms and wet areas.
  • Remote operation & digital I/O: Supports contact closure and logic input controls with 4 configurable digital outputs to integrate seamlessly with automated bioprocessing systems and laboratory automation platforms.
  • Documentation & validation: Comprehensive manuals, validation support documents compliant with cGMP, and IQ/OQ protocols facilitate regulatory submissions and quality assurance workflows commonly required in molecular biology and clinical diagnostics labs.

Widely adopted in pharmaceutical filling, cell culture media dosing, and biomanufacturing pipelines, the Watson-Marlow 520Di offers robust, accurate fluid dispensing essential for biotechnology, synthetic biology, and biomedical engineering applications. Its precision and programmability make it a reliable solution for aseptic filling and metering of corrosive or high-viscosity fluids in research and industrial settings.

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We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Can't find the exact configuration?

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Last updated 6 November 2026