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Welch CRVpro4 Model 3041-01 Rotary Vane Vacuum Pump 2.8 CFM, Ultimate Pressure 2x10⁻³ mbar

UsedWelchVacuum pumpsUnited States

€802.7excl. VAT

In stock

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Welch
New/Used
Used
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Product description

Rotary vane vacuum pump with 2.8 CFM displacement, 2x10⁻³ mbar ultimate pressure, chemical-resistant coating, ideal for biotech labs.

The Welch CRVpro4 (Model 3041-01) is a high-performance, two-stage rotary vane vacuum pump engineered for laboratory and bioprocessing applications requiring reliable vacuum generation. Key technical specifications include:

  • Free air displacement of 2.8 CFM (78 L/min) at 60 Hz, suitable for continuous vacuum processes in molecular diagnostics and synthetic biology workflows.
  • Ultimate vacuum pressure capability of 2x10⁻³ mbar (1.5x10⁻³ Torr), supporting sensitive fluorescence analysis and live-cell imaging systems.
  • Energy-efficient design consuming up to 36% less oil than comparable pumps while running 10°C cooler to minimize corrosion and prolong service life.
  • Chemical-resistant coating and a 40% larger oil capacity enable extended durability and effective dilution of aggressive chemicals common in biomanufacturing and gene editing environments.
  • Versatile voltage compatibility with options for 115V/60Hz and 208-230/460V 50/60Hz configurations, allowing integration into diverse laboratory power setups.
  • Includes essential operational accessories: Oil Mist Separator (P/N 320015) and Vacuum Inlet Separator (P/N 320016), critical for maintaining clean vacuum lines in clinical diagnostics and biotechnology research.
  • Constructed in the United States, the pump weighs 47 lbs (actual) and measures 7" x 19" x 11", optimizing bench space efficiency in biomedical engineering labs.

Widely adopted in biopharmaceutical production pipelines and molecular cloning workflows, the CRVpro4 rotary vane vacuum pump offers robust, low-maintenance vacuum performance. Its ability to maintain low ultimate pressures with high chemical resistance makes it essential for advanced research fields including neuroscience, biotechnology, and molecular biology. The pump’s proven reliability and performance align with quality standards expected in clinical research and synthetic biology laboratories.

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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.

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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?

Yes. Every verified supplier states which service partners cover the instrument, and we list that 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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Last updated 19 October 2026