From€450excl. VAT
In stock
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Oil-free Welch diaphragm pump for laboratory aspiration, filtration, and pressure transfer at 9.2 L/min.
The Welch 2511C-75 is an oil-free diaphragm aspiration pump and pressure transfer station designed for laboratory liquid aspiration, filtration, and pressure transfer applications. It provides a flow rate of 9.2 L/min and an ultimate pressure of 292 mbar.
This laboratory vacuum pump is suitable for biochemistry, biotechnology, chemical laboratory workflows, sample preparation, and liquid handling applications. The tested, fully functional unit is supplied in very good condition and is ready for use.
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 7 November 2026
€450 sits in the middle range vacuum pumps here. The middle half of the 415 with a price runs from €393 to €2,514.
1 other listing of this model is available.
