Written on: August 5, 2026
New seal design enhances reliability and service life across abrasive applications
Grand Rapids, MI, USA – Blackmer, a brand of PSG, a Dover company, and a global leader in rotating pumps and reciprocating compressor technologies, today announced the launch of a behind-the-rotor seal option for its Blackmer® G Series Internal Gear Pumps. This seal design delivers improved protection and performance when handling abrasive materials across a wide range of applications.
Engineered for serviceability and longevity, the behind-the-rotor seal option is designed to prevent process fluids and abrasive materials from contacting drive components of the G Series. This results in reduced wear, simplified maintenance and increased uptime for operators.
“The introduction of the behind-the-rotor seal underscores our ongoing commitment to providing reliable pump technology and enhances the trusted performance of the G Series,” said Joe Parzych, Product Manager of Blackmer Gear. “By protecting critical internal components, this new seal option helps customers minimize downtime and reduce total cost of ownership.”
The behind-the-rotor seal option includes the following key features:
• Available in Type 1 or Type 8 seal configurations for greater flexibility
• Supports the use of a lower-cost bronze bushing when pumping abrasive materials
• Ideal for industries handling starches, inks, pulp, resins and adhesives
• Initially available on G3-2 through G3-69 cast iron models, with additional materials planned for future release
“By adding the behind-the-rotor seal option, operators can further expand on the versatility and dependability of their G Series Pumps,” said Parzych. “It’s a simple, high-impact solution for customers who want to maximize both the performance and longevity of their internal gear pumps.”
For more information on Blackmer, please visit blackmer.com. Blackmer is a brand of PSG, a Dover company. For more information on PSG, please visit psgdover.com.
About Blackmer:
For over 120 years, Blackmer has been the leading global brand of sliding vane, internal gear, regenerative turbine and centrifugal pump, and reciprocating compressor technologies for the transfer of liquids and gases. For more than a century, Blackmer has provided unparalleled product performance, superior services and support, visionary innovation and a commitment to customer satisfaction. Used in many applications, Blackmer pumps and compressors are found in a variety of markets, including process, transport, energy, and military and marine. Blackmer is a brand of PSG, a Dover company. To learn more about Blackmer, please visit psgdover.com/blackmer.
About PSG:
PSG is the global pump, metering and dispensing-solution expert, enabling the safe and efficient transfer of critical and valuable fluids that require optimal performance and reliability in applications where it matters most. Additionally, PSG is a leading provider of flow meters designed to reduce waste and downtime while accurately measuring, monitoring and controlling the distribution of fluids. Headquartered in Downers Grove, IL, USA, PSG is comprised of several world-class brands, including Abaque, All-Flo, Almatec, Blackmer, CPC Biotech,
