Price on request
In stock
Can't find what you're looking for?
Belt-drive Welch 1402 DuoSeal vacuum pump with 0.5 HP motor, 160 L/min displacement, and ultimate vacuum <0.001 Torr.
The Welch 1402 DuoSeal vacuum pump is a robust, belt-driven system designed for laboratory applications including large chillers, glove boxes, rotary evaporators, and vacuum ovens. Equipped with a 0.5 HP (0.37 kW) motor operating at a low 525 RPM, it reduces friction and mechanical wear, thereby extending pump life and maintaining lower operating temperatures essential for sensitive biotechnology and molecular diagnostics workflows.
Key features include:
Its durable construction and high-performance characteristics make it critical for biomanufacturing, gene editing, and live-cell imaging setups where reliable vacuum is paramount. The Welch 1402 is widely adopted in biotechnology laboratories for its ability to maintain stable vacuum conditions integral to molecular cloning workflows and clinical diagnostics platforms.
With dimensions of 19 x 11 x 15 inches and weighing 58 lbs, it balances a compact footprint and portability. Powered by 115V, 60Hz, 9.8A, this vacuum pump is a technically advanced solution for demanding laboratory environments.
This pump is delivered with a comprehensive warranty and has undergone rigorous service testing to ensure optimal operation, making it a dependable choice for researchers in biomedical engineering and fluorescence analysis seeking precise and durable vacuum solutions.
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.
Yes. Every verified supplier states which service partners cover the instrument, and we list that 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 10 June 2026
The middle half of the 453 with a price runs from €401 to €2,083.
