Duisburg, Germany – March 18, 2020 – Quattroflow?, part of PSG^?, a Dover company and a leading brand of positive displacement quaternary diaphragm pumps, is pleased to announce that it has extended its line of multiple- and single-use pumps with the introduction of the new QF2500 Quaternary Diaphragm Pump. With a maximum flow rate of 2,500 lph (660 gph), the new QF2500 pump is ideally suited to meet the needs within demanding biopharma applications, including chromatography, TFF, virus filtration, sterile filtration, and depth filtration.

The Quattroflow QF2500 pump is able to excel in biopharma applications thanks numerous design enhancements such as a new pump chamber that provides excellent drainability to maximize produce recovery. The QF2500 pump also features a self-draining design, 125:1 turndown ratio, high flow stability even at low flow rates, linear flow performance, and clean-in-place (CIP) capability. Available accessories include a power box, diaphragm sensor and PID pressure controller.

With the addition of the new QF2500, Quattroflow pumps are now available in eight sizes covering a flow range from 0.06 to 16,000 lph (0.02 to 4,227 gph). Quattroflow pumps primarily serve biopharma applications that require gentle displacement, reliability, product safety, purity and accuracy. The Quattroflow design does not feature a mechanical shaft seal or wetted rotating parts, ensuring total product containment without abrasion. Additionally, the pumping principle enables risk-free dry running, low pulsation, self-priming, and minimal particle generation. With single- and multiple-use models available, Quattroflow has a pump to fit every application need.

For more information on Quattroflow, please go to quattroflow.com. Quattroflow is a product brand within PSG, a Dover company. For more information on PSG, please go to psgdover.com.

About Quattroflow^?:

Quattroflow? is a leading brand of quaternary (four-piston) diaphragm pumps that primarily serve industries such as pharmaceutical and biopharmaceutical that require gentle displacement, reliability, product safety, purity and cleanability. Headquartered in Duisburg, Germany, Quattroflow is part of PSG?, a Dover company. For more information on Quattroflow and its complete family of four-piston pumps, please visit quattroflow.com.

About Dover:

Dover is a diversified global manufacturer with annual revenue of over $7 billion. We deliver innovative equipment and components, specialty systems, consumable supplies, software and digital solutions, and support services through five operating segments: Engineered Products, Fueling Solutions, Imaging & Identification, Pumps & Process Solutions and Refrigeration & Food Equipment. Dover combines global scale with operational agility to lead the markets we serve. Recognized for our entrepreneurial approach for over 60 years, our team of approximately 24,000 employees takes an ownership mindset, collaborating with customers to redefine what's possible. Headquartered in Downers Grove, Illinois, Dover trades on the New York Stock Exchange under "DOV." Additional information is available at ?dovercorporation.com.

Marketing Contact:
Rainer Frericks, Director of Marketing
PSG^?, a Dover company
+49 2065 89205-0
Rainer.Frericks@psgdover.com

Media Contact:
Darren Wight, VP Media & Publicity
DeanHouston (agency for PSG^?)
513-280-0047 or
Darren.Wight@deanhouston.com