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Reliable pump for fluid handling with manual control and versatile applications.
The Watson Marlow 520S Peristaltic Pump is designed for reliability and versatility in laboratory fluid handling. In pristine condition, it ensures immediate usability with no complex installation needed. Known for lacking valves and seals, this pump minimizes the risk of contamination, operating dry without issues. It's suitable for viscous, shear-sensitive, corrosive, and abrasive fluids with suspended solids. Ideal for metering, dosing, and dispensing tasks, it features manual speed control across a range of 0.1 to 220 rpm, operated via a detailed membrane keypad. With precise flow rates between 4 μL/min and 2.4 L/min, the pump is compatible with various input voltages and frequencies. Further enhanced by the MemoDose function for accurate dispensing, the 520S model offers durable and efficient processing with ease and reliability.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
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.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 9 November 2026
