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

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Stock Number
31648/31647/31649/SR9B
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/SR9B

Product description

High-precision Watson-Marlow 520Di peristaltic pump dispenses up to 3.5 L/min with ±0.5% accuracy for biotech and pharma use.

The Watson-Marlow 520Di is a high-precision, programmable peristaltic dispensing pump engineered for aseptic fluid transfer and fill-finish applications in pharmaceutical, biotechnology, and food processing environments. It features a user-friendly tactile membrane keypad paired with an alphanumeric LCD for intuitive operation and supports up to *50 programmable batch routines*, enabling complex dispensing sequences essential for cGMP-compliant processes in molecular diagnostics and biomanufacturing workflows.

Key technical features include:

  • Dispensing speed of 50 mL in 2 seconds with ±0.5% volumetric accuracy, ensuring reliable fluid dosing for precise reagent preparation and cell culture media filling
  • Maximum flow rate of 3.5 L/min and pressure handling up to 2 bar, suitable for a range of viscosity profiles encountered in synthetic biology and bioprocessing
  • Enclosure options of IP31 (NEMA2) and IP66 (NEMA4X), providing flexibility for laboratory benchtop setups or installation in more demanding, hygienic production environments
  • Security options with passcode protection to safeguard program settings, critical for regulated biotech and pharmaceutical production lines
  • Remote operation via contact closure or logic inputs, plus 4 configurable digital outputs, facilitating integration in automated biomanufacturing systems and liquid handling workflows

Documentation includes comprehensive operating manuals, cGMP validation support with IQ/OQ protocols, and maintenance/calibration guides, ensuring compliance with industry quality standards.

This pump is widely used in aseptic fill/finish, vial and bottle dosing, and precise reagent metering in biotechnology R&D, clinical diagnostics, and food industry processes. Its accuracy and programmability make it critical equipment in biopharmaceutical production pipelines, supporting synthetic biology research and molecular cloning workflows requiring exact fluid control.

The Watson-Marlow 520Di is an indispensable peristaltic pump solution for laboratory buyers, researchers, and industrial users demanding reliable, high-throughput, and validated fluid handling technology.

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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 9 November 2026