Little pumps, big vacuum
DAU-20D

Pumps and valves

Little pumps, big vacuum

07 Oct, 2026

Weighing in at just 7.5kg, these small pumps create deeper vacuum levels using a dry diaphragm pump construction. Pumping speed is 20 liters/min at 50Hz with an ultimate vacuum level of 2 mbar. The DTU model offers an added level of corrosion resistance against harsh and corrosive gases. They are high vacuum type diaphragm pumps with low vibration. It can be used as a backing pump for turbo pumps, analytical equipment, biochemical analysis, gas charging, vacuum drying systems, evaporators and more.

Furthermore, ULVAC has a full product-line of various diaphragm type dry vacuum pumps which will meet your specific requirements. Pumping speed ranges from the size of 6 liter/min up to 240 liter/min at 50 Hz with an ultimate pressure from 2 mbar up to 240 mbar. All pumps are constructed robustly, made of high-quality materials, easy to service and meet different international standards. Therefore, ULVAC is your supplier of choice and can support a variety of applications and processes with high-quality products and decades of experience.

For demanding processes with corrosive gases, ULVAC offers chemically resistant pump versions as well, the Model DTC, ranging from a pumping speed of 20 to 60 liters/min. All contacted components are made of PTFE or FPM for resistance to any caustic vapors being pumped. Affordably prices and easy to maintain the DTC is the ultimate lab vacuum pump.

You can see the ULVAC range of diaphragm pumps here. 

ULVAC GmbH is a leading supplier, vacuum pumps and components for the semiconductor, flat panel display, research, automotive, medical, food, coating and electrical industries. We offer Roots, scroll, dry, cryo, diffusion and oil rotary pumps in various sizes. Repair service for dry and cryogenic pumps and maintenance kits are available from stock. ULVAC GmbH is a subsidiary of ULVAC, Inc., which is made up of 39 companies engaged in most sectors of the vacuum industry.

Latest News

ILM 51.6 Sept 2026

Explore our Digital Edition

Discover the latest news and research

Digital edition

Explore Our Other Sites

Envirotech Online
Review charts path toward AI‑supported nitrogen source tracking in watersheds
Explore more Arrow
Pollution Solutions Online
Smarter wastewater management helps futureproof distillery operations and protect local watercourses
Explore more Arrow
Petro Online
Improving repeatability in diesel fuel lubricity testing
Explore more Arrow
Chromatography Today
Dr. Anupam Giri joins Chromatography Today as consultant editor to strengthen its technical expertise
Explore more Arrow